Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r175-smll-177961111800052.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is LamportFastMutEx-PT-4, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r175-smll-177961111800052
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 928K
-rw-r--r-- 1 mcc users 14K Mar 7 16:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 99K Mar 7 16:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 23K Mar 7 16:44 CTLFireability.txt
-rw-r--r-- 1 mcc users 140K Mar 7 16:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 7.6K Mar 15 11:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 39K Mar 15 11:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 7.7K Mar 15 11:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 37K Mar 15 11:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 27K Mar 7 16:44 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 170K Mar 7 16:44 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 30K Mar 7 16:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 172K Mar 7 16:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 11:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 5.5K Mar 15 11:11 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 2 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 114K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-00
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-01
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-02
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-03
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-04
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-05
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-06
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-07
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-08
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-09
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-10
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-11
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-12
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-13
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-14
FORMULA_NAME LamportFastMutEx-PT-4-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779749466122

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LamportFastMutEx-PT-4
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 22:51:08] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 22:51:08] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 22:51:09] [INFO ] Load time of PNML (sax parser for PT used): 183 ms
[2026-05-25 22:51:09] [INFO ] Transformed 135 places.
[2026-05-25 22:51:09] [INFO ] Transformed 230 transitions.
[2026-05-25 22:51:09] [INFO ] Found NUPN structural information;
[2026-05-25 22:51:09] [INFO ] Completing missing partition info from NUPN : creating a component with [P_start_1_0, P_start_1_1, P_start_1_2, P_start_1_3, P_start_1_4, P_b_0_false, P_b_0_true, P_b_1_false, P_b_1_true, P_b_2_false, P_b_2_true, P_b_3_false, P_b_3_true, P_b_4_false, P_b_4_true, P_setx_3_0, P_setx_3_1, P_setx_3_2, P_setx_3_3, P_setx_3_4, P_setbi_5_0, P_setbi_5_1, P_setbi_5_2, P_setbi_5_3, P_setbi_5_4, P_ify0_4_0, P_ify0_4_1, P_ify0_4_2, P_ify0_4_3, P_ify0_4_4, P_sety_9_0, P_sety_9_1, P_sety_9_2, P_sety_9_3, P_sety_9_4, P_ifxi_10_0, P_ifxi_10_1, P_ifxi_10_2, P_ifxi_10_3, P_ifxi_10_4, P_setbi_11_0, P_setbi_11_1, P_setbi_11_2, P_setbi_11_3, P_setbi_11_4, P_fordo_12_0, P_fordo_12_1, P_fordo_12_2, P_fordo_12_3, P_fordo_12_4, P_wait_0_0, P_wait_0_1, P_wait_0_2, P_wait_0_3, P_wait_0_4, P_wait_1_0, P_wait_1_1, P_wait_1_2, P_wait_1_3, P_wait_1_4, P_wait_2_0, P_wait_2_1, P_wait_2_2, P_wait_2_3, P_wait_2_4, P_wait_3_0, P_wait_3_1, P_wait_3_2, P_wait_3_3, P_wait_3_4, P_wait_4_0, P_wait_4_1, P_wait_4_2, P_wait_4_3, P_wait_4_4, P_await_13_0, P_await_13_1, P_await_13_2, P_await_13_3, P_await_13_4, P_done_0_0, P_done_0_1, P_done_0_2, P_done_0_3, P_done_0_4, P_done_1_0, P_done_1_1, P_done_1_2, P_done_1_3, P_done_1_4, P_done_2_0, P_done_2_1, P_done_2_2, P_done_2_3, P_done_2_4, P_done_3_0, P_done_3_1, P_done_3_2, P_done_3_3, P_done_3_4, P_done_4_0, P_done_4_1, P_done_4_2, P_done_4_3, P_done_4_4, P_ifyi_15_0, P_ifyi_15_1, P_ifyi_15_2, P_ifyi_15_3, P_ifyi_15_4, P_awaity_0, P_awaity_1, P_awaity_2, P_awaity_3, P_awaity_4, P_CS_21_0, P_CS_21_1, P_CS_21_2, P_CS_21_3, P_CS_21_4, P_setbi_24_0, P_setbi_24_1, P_setbi_24_2, P_setbi_24_3, P_setbi_24_4]
[2026-05-25 22:51:09] [INFO ] Parsed PT model containing 135 places and 230 transitions and 990 arcs in 425 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 16 ms.
Deduced a syphon composed of 33 places in 3 ms
Reduce places removed 33 places and 50 transitions.
FORMULA LamportFastMutEx-PT-4-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-PT-4-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 4, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1] Max Struct:[4, 4, 4, 4, 4, 4, 16, 1, 1, 1, 1, 1, 1, 1]
FORMULA LamportFastMutEx-PT-4-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-PT-4-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-PT-4-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-PT-4-UpperBounds-04 4 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 16, 1, 1, 1, 1]
[2026-05-25 22:51:09] [INFO ] Flow matrix only has 144 transitions (discarded 36 similar events)
// Phase 1: matrix 144 rows 102 cols
[2026-05-25 22:51:09] [INFO ] Computed 26 invariants in 29 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 16, 1, 1, 1, 1]
RANDOM walk for 10000 steps (2 resets) in 108 ms. (91 steps per ms)
FORMULA LamportFastMutEx-PT-4-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA LamportFastMutEx-PT-4-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA LamportFastMutEx-PT-4-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA LamportFastMutEx-PT-4-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 60003 steps (12 resets) in 261 ms. (229 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 1, 3, 3, 3, 12] Max Struct:[4, 4, 4, 4, 4, 16]
[2026-05-25 22:51:09] [INFO ] Flow matrix only has 144 transitions (discarded 36 similar events)
[2026-05-25 22:51:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:10] [INFO ] [Real]Absence check using 26 positive place invariants in 29 ms returned sat
[2026-05-25 22:51:10] [INFO ] [Real]Absence check using state equation in 168 ms returned sat
[2026-05-25 22:51:10] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-25 22:51:10] [INFO ] [Real]Added 40 Read/Feed constraints in 18 ms returned sat
[2026-05-25 22:51:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:10] [INFO ] [Nat]Absence check using 26 positive place invariants in 20 ms returned sat
[2026-05-25 22:51:10] [INFO ] [Nat]Absence check using state equation in 183 ms returned sat
[2026-05-25 22:51:10] [INFO ] [Nat]Added 40 Read/Feed constraints in 23 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:10] [INFO ] Deduced a trap composed of 6 places in 151 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 9 places in 106 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 10 places in 71 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 21 places in 92 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 21 places in 92 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 21 places in 83 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 21 places in 75 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 10 places in 57 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 9 places in 112 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 10 places in 54 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:11] [INFO ] Deduced a trap composed of 10 places in 51 ms of which 4 ms to minimize.
[2026-05-25 22:51:11] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 11 trap constraints in 1156 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:12] [INFO ] [Real]Absence check using 26 positive place invariants in 20 ms returned sat
[2026-05-25 22:51:12] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2026-05-25 22:51:12] [INFO ] [Real]Added 40 Read/Feed constraints in 11 ms returned sat
[2026-05-25 22:51:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:12] [INFO ] [Nat]Absence check using 26 positive place invariants in 15 ms returned sat
[2026-05-25 22:51:12] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2026-05-25 22:51:12] [INFO ] [Nat]Added 40 Read/Feed constraints in 14 ms returned sat
[2026-05-25 22:51:12] [INFO ] Computed and/alt/rep : 128/512/128 causal constraints (skipped 12 transitions) in 35 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:12] [INFO ] Deduced a trap composed of 9 places in 135 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:13] [INFO ] Deduced a trap composed of 9 places in 129 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:13] [INFO ] Deduced a trap composed of 10 places in 125 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:13] [INFO ] Deduced a trap composed of 21 places in 143 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:13] [INFO ] Deduced a trap composed of 21 places in 161 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:13] [INFO ] Deduced a trap composed of 21 places in 133 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:13] [INFO ] Deduced a trap composed of 13 places in 108 ms of which 8 ms to minimize.
[2026-05-25 22:51:13] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 1117 ms
[2026-05-25 22:51:13] [INFO ] Added : 76 causal constraints over 16 iterations in 1581 ms. Result :sat
Minimization took 143 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:14] [INFO ] [Real]Absence check using 26 positive place invariants in 16 ms returned sat
[2026-05-25 22:51:14] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2026-05-25 22:51:14] [INFO ] [Real]Added 40 Read/Feed constraints in 13 ms returned sat
[2026-05-25 22:51:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:14] [INFO ] [Nat]Absence check using 26 positive place invariants in 17 ms returned sat
[2026-05-25 22:51:14] [INFO ] [Nat]Absence check using state equation in 113 ms returned sat
[2026-05-25 22:51:14] [INFO ] [Nat]Added 40 Read/Feed constraints in 22 ms returned sat
[2026-05-25 22:51:14] [INFO ] Computed and/alt/rep : 128/512/128 causal constraints (skipped 12 transitions) in 23 ms.
[2026-05-25 22:51:14] [INFO ] Added : 40 causal constraints over 9 iterations in 257 ms. Result :sat
Minimization took 89 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:14] [INFO ] [Real]Absence check using 26 positive place invariants in 17 ms returned sat
[2026-05-25 22:51:15] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2026-05-25 22:51:15] [INFO ] [Real]Added 40 Read/Feed constraints in 10 ms returned sat
[2026-05-25 22:51:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:15] [INFO ] [Nat]Absence check using 26 positive place invariants in 27 ms returned sat
[2026-05-25 22:51:15] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 22:51:15] [INFO ] [Nat]Added 40 Read/Feed constraints in 27 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:15] [INFO ] Deduced a trap composed of 12 places in 122 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:15] [INFO ] Deduced a trap composed of 12 places in 109 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:15] [INFO ] Deduced a trap composed of 12 places in 114 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:15] [INFO ] Deduced a trap composed of 6 places in 116 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:16] [INFO ] Deduced a trap composed of 12 places in 121 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:16] [INFO ] Deduced a trap composed of 8 places in 144 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:16] [INFO ] Deduced a trap composed of 6 places in 142 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:16] [INFO ] Deduced a trap composed of 8 places in 135 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:16] [INFO ] Deduced a trap composed of 8 places in 143 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:16] [INFO ] Deduced a trap composed of 8 places in 140 ms of which 12 ms to minimize.
[2026-05-25 22:51:16] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 10 trap constraints in 1437 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:16] [INFO ] [Real]Absence check using 26 positive place invariants in 17 ms returned sat
[2026-05-25 22:51:17] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2026-05-25 22:51:17] [INFO ] [Real]Added 40 Read/Feed constraints in 11 ms returned sat
[2026-05-25 22:51:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:17] [INFO ] [Nat]Absence check using 26 positive place invariants in 19 ms returned sat
[2026-05-25 22:51:17] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2026-05-25 22:51:17] [INFO ] [Nat]Added 40 Read/Feed constraints in 15 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:17] [INFO ] Deduced a trap composed of 9 places in 117 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:17] [INFO ] Deduced a trap composed of 10 places in 145 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:17] [INFO ] Deduced a trap composed of 13 places in 132 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:17] [INFO ] Deduced a trap composed of 6 places in 96 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:17] [INFO ] Deduced a trap composed of 13 places in 98 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:17] [INFO ] Deduced a trap composed of 13 places in 102 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:18] [INFO ] Deduced a trap composed of 13 places in 97 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:18] [INFO ] Deduced a trap composed of 13 places in 125 ms of which 10 ms to minimize.
[2026-05-25 22:51:18] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 8 trap constraints in 1018 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:18] [INFO ] [Real]Absence check using 26 positive place invariants in 21 ms returned sat
[2026-05-25 22:51:18] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2026-05-25 22:51:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 22:51:18] [INFO ] [Nat]Absence check using 26 positive place invariants in 19 ms returned sat
[2026-05-25 22:51:18] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2026-05-25 22:51:18] [INFO ] [Nat]Added 40 Read/Feed constraints in 35 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:18] [INFO ] Deduced a trap composed of 9 places in 123 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:18] [INFO ] Deduced a trap composed of 9 places in 110 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:19] [INFO ] Deduced a trap composed of 13 places in 98 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:19] [INFO ] Deduced a trap composed of 6 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:19] [INFO ] Deduced a trap composed of 13 places in 71 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:19] [INFO ] Deduced a trap composed of 13 places in 83 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:19] [INFO ] Deduced a trap composed of 13 places in 78 ms of which 4 ms to minimize.
[2026-05-25 22:51:19] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 7 trap constraints in 757 ms
Current structural bounds on expressions (after SMT) : Max Seen:[3, 1, 3, 3, 3, 12] Max Struct:[3, 4, 4, 3, 3, 12]
FORMULA LamportFastMutEx-PT-4-UpperBounds-07 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-PT-4-UpperBounds-06 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-PT-4-UpperBounds-05 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-PT-4-UpperBounds-00 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 3] Max Struct:[4, 4]
Support contains 8 out of 102 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 102/102 places, 180/180 transitions.
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 0 with 8 rules applied. Total rules applied 8 place count 98 transition count 176
Free-agglomeration rule (complex) applied 4 times.
Iterating global reduction 0 with 4 rules applied. Total rules applied 12 place count 98 transition count 172
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 16 place count 94 transition count 172
Applied a total of 16 rules in 80 ms. Remains 94 /102 variables (removed 8) and now considering 172/180 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 98 ms. Remains : 94/102 places, 172/180 transitions.
[2026-05-25 22:51:19] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
// Phase 1: matrix 136 rows 94 cols
[2026-05-25 22:51:19] [INFO ] Computed 26 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 3] Max Struct:[4, 4]
RANDOM walk for 1000000 steps (2 resets) in 2258 ms. (442 steps per ms)
FORMULA LamportFastMutEx-PT-4-UpperBounds-03 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000000 steps (2 resets) in 632 ms. (1579 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 22:51:22] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:51:22] [INFO ] [Real]Absence check using 26 positive place invariants in 9 ms returned sat
[2026-05-25 22:51:22] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2026-05-25 22:51:22] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-25 22:51:22] [INFO ] [Real]Added 40 Read/Feed constraints in 6 ms returned sat
[2026-05-25 22:51:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:51:22] [INFO ] [Nat]Absence check using 26 positive place invariants in 10 ms returned sat
[2026-05-25 22:51:22] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2026-05-25 22:51:22] [INFO ] [Nat]Added 40 Read/Feed constraints in 9 ms returned sat
[2026-05-25 22:51:22] [INFO ] Computed and/alt/rep : 116/496/116 causal constraints (skipped 16 transitions) in 13 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:23] [INFO ] Deduced a trap composed of 8 places in 131 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:23] [INFO ] Deduced a trap composed of 9 places in 149 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:23] [INFO ] Deduced a trap composed of 21 places in 153 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:23] [INFO ] Deduced a trap composed of 21 places in 115 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:23] [INFO ] Deduced a trap composed of 6 places in 125 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:24] [INFO ] Deduced a trap composed of 14 places in 123 ms of which 10 ms to minimize.
[2026-05-25 22:51:24] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 931 ms
[2026-05-25 22:51:24] [INFO ] Added : 64 causal constraints over 13 iterations in 1166 ms. Result :sat
Minimization took 173 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[4]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 94 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 94/94 places, 172/172 transitions.
Applied a total of 0 rules in 15 ms. Remains 94 /94 variables (removed 0) and now considering 172/172 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 94/94 places, 172/172 transitions.
[2026-05-25 22:51:24] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[4]
RANDOM walk for 1000000 steps (2 resets) in 2218 ms. (450 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 600 ms. (1663 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 22:51:27] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:51:27] [INFO ] [Real]Absence check using 26 positive place invariants in 10 ms returned sat
[2026-05-25 22:51:27] [INFO ] [Real]Absence check using state equation in 51 ms returned sat
[2026-05-25 22:51:27] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-25 22:51:27] [INFO ] [Real]Added 40 Read/Feed constraints in 11 ms returned sat
[2026-05-25 22:51:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:51:27] [INFO ] [Nat]Absence check using 26 positive place invariants in 10 ms returned sat
[2026-05-25 22:51:27] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2026-05-25 22:51:27] [INFO ] [Nat]Added 40 Read/Feed constraints in 9 ms returned sat
[2026-05-25 22:51:27] [INFO ] Computed and/alt/rep : 116/496/116 causal constraints (skipped 16 transitions) in 10 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:27] [INFO ] Deduced a trap composed of 8 places in 108 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:27] [INFO ] Deduced a trap composed of 9 places in 123 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:28] [INFO ] Deduced a trap composed of 21 places in 140 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:28] [INFO ] Deduced a trap composed of 21 places in 138 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:28] [INFO ] Deduced a trap composed of 6 places in 133 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:28] [INFO ] Deduced a trap composed of 14 places in 131 ms of which 10 ms to minimize.
[2026-05-25 22:51:28] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 905 ms
[2026-05-25 22:51:28] [INFO ] Added : 64 causal constraints over 13 iterations in 1135 ms. Result :sat
Minimization took 176 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[4]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 94 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 94/94 places, 172/172 transitions.
Applied a total of 0 rules in 14 ms. Remains 94 /94 variables (removed 0) and now considering 172/172 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 94/94 places, 172/172 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 94/94 places, 172/172 transitions.
Applied a total of 0 rules in 13 ms. Remains 94 /94 variables (removed 0) and now considering 172/172 (removed 0) transitions.
[2026-05-25 22:51:28] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 22:51:29] [INFO ] Implicit Places using invariants in 316 ms returned [62, 63, 64, 65]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 320 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 90/94 places, 172/172 transitions.
Applied a total of 0 rules in 9 ms. Remains 90 /90 variables (removed 0) and now considering 172/172 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 348 ms. Remains : 90/94 places, 172/172 transitions.
[2026-05-25 22:51:29] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
// Phase 1: matrix 136 rows 90 cols
[2026-05-25 22:51:29] [INFO ] Computed 22 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[4]
RANDOM walk for 1000000 steps (2 resets) in 1772 ms. (564 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1028 ms. (971 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 22:51:32] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:51:32] [INFO ] [Real]Absence check using 22 positive place invariants in 14 ms returned sat
[2026-05-25 22:51:32] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2026-05-25 22:51:32] [INFO ] State equation strengthened by 24 read => feed constraints.
[2026-05-25 22:51:32] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2026-05-25 22:51:32] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:51:32] [INFO ] [Nat]Absence check using 22 positive place invariants in 14 ms returned sat
[2026-05-25 22:51:32] [INFO ] [Nat]Absence check using state equation in 75 ms returned sat
[2026-05-25 22:51:32] [INFO ] [Nat]Added 24 Read/Feed constraints in 13 ms returned sat
[2026-05-25 22:51:32] [INFO ] Computed and/alt/rep : 120/496/120 causal constraints (skipped 12 transitions) in 19 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:32] [INFO ] Deduced a trap composed of 9 places in 153 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:32] [INFO ] Deduced a trap composed of 21 places in 127 ms of which 6 ms to minimize.
[2026-05-25 22:51:32] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 329 ms
[2026-05-25 22:51:33] [INFO ] Added : 56 causal constraints over 12 iterations in 635 ms. Result :sat
Minimization took 174 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[4]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 172/172 transitions.
Applied a total of 0 rules in 14 ms. Remains 90 /90 variables (removed 0) and now considering 172/172 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 90/90 places, 172/172 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 172/172 transitions.
Applied a total of 0 rules in 13 ms. Remains 90 /90 variables (removed 0) and now considering 172/172 (removed 0) transitions.
[2026-05-25 22:51:33] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 22:51:33] [INFO ] Implicit Places using invariants in 209 ms returned []
[2026-05-25 22:51:33] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 22:51:33] [INFO ] State equation strengthened by 24 read => feed constraints.
[2026-05-25 22:51:33] [INFO ] Implicit Places using invariants and state equation in 392 ms returned []
Implicit Place search using SMT with State Equation took 604 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 22:51:33] [INFO ] Redundant transitions in 11 ms returned []
Running 168 sub problems to find dead transitions.
[2026-05-25 22:51:33] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 22:51:33] [INFO ] Invariant cache hit.
[2026-05-25 22:51:33] [INFO ] State equation strengthened by 24 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 90/90 constraints. Problems are: Problem set: 0 solved, 168 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 22/112 constraints. Problems are: Problem set: 0 solved, 168 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 9 places in 97 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 9 places in 92 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 9 places in 95 ms of which 13 ms to minimize.
Problem TDEAD1 is UNSAT
Problem TDEAD3 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 12 places in 120 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 12 places in 130 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 12 places in 126 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 13 places in 134 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:35] [INFO ] Deduced a trap composed of 12 places in 102 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 12 places in 126 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 15 places in 122 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 9 places in 35 ms of which 3 ms to minimize.
Problem TDEAD5 is UNSAT
Problem TDEAD7 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 6 places in 99 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 6 places in 120 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 14 places in 110 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 14 places in 122 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 14 places in 85 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:36] [INFO ] Deduced a trap composed of 14 places in 110 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 9 places in 119 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 9 places in 126 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 9 places in 82 ms of which 5 ms to minimize.
Problem TDEAD1 is UNSAT
Problem TDEAD3 is UNSAT
Problem TDEAD5 is UNSAT
Problem TDEAD7 is UNSAT
Problem TDEAD28 is UNSAT
Problem TDEAD38 is UNSAT
Problem TDEAD43 is UNSAT
Problem TDEAD61 is UNSAT
Problem TDEAD73 is UNSAT
Problem TDEAD79 is UNSAT
Problem TDEAD92 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/90 variables, 20/132 constraints. Problems are: Problem set: 11 solved, 157 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 6 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 6 places in 27 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 13 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 13 places in 50 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 13 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 7 places in 107 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:37] [INFO ] Deduced a trap composed of 7 places in 114 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 9 places in 89 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 15 places in 95 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 15 places in 106 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 15 places in 86 ms of which 6 ms to minimize.
Problem TDEAD33 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 14 places in 94 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 15 places in 95 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 5 ms to minimize.
Problem TDEAD44 is UNSAT
Problem TDEAD46 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 7 places in 33 ms of which 3 ms to minimize.
Problem TDEAD48 is UNSAT
Problem TDEAD50 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 21 places in 82 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:38] [INFO ] Deduced a trap composed of 21 places in 85 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:39] [INFO ] Deduced a trap composed of 21 places in 70 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:39] [INFO ] Deduced a trap composed of 21 places in 57 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:39] [INFO ] Deduced a trap composed of 12 places in 73 ms of which 3 ms to minimize.
Problem TDEAD33 is UNSAT
Problem TDEAD44 is UNSAT
Problem TDEAD46 is UNSAT
Problem TDEAD48 is UNSAT
Problem TDEAD50 is UNSAT
Problem TDEAD67 is UNSAT
Problem TDEAD84 is UNSAT
Problem TDEAD88 is UNSAT
Problem TDEAD144 is UNSAT
Problem TDEAD146 is UNSAT
Problem TDEAD148 is UNSAT
Problem TDEAD150 is UNSAT
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 20/152 constraints. Problems are: Problem set: 23 solved, 145 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:39] [INFO ] Deduced a trap composed of 15 places in 69 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:39] [INFO ] Deduced a trap composed of 15 places in 70 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 15 places in 72 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 14 places in 75 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 14 places in 70 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 6 places in 42 ms of which 3 ms to minimize.
Problem TDEAD80 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 12 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 12 places in 69 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 12 places in 70 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 13 places in 64 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:40] [INFO ] Deduced a trap composed of 14 places in 81 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:41] [INFO ] Deduced a trap composed of 14 places in 70 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:41] [INFO ] Deduced a trap composed of 15 places in 67 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:41] [INFO ] Deduced a trap composed of 14 places in 72 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:41] [INFO ] Deduced a trap composed of 15 places in 72 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:41] [INFO ] Deduced a trap composed of 21 places in 64 ms of which 8 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 17/169 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:41] [INFO ] Deduced a trap composed of 15 places in 91 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:42] [INFO ] Deduced a trap composed of 12 places in 74 ms of which 8 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 2/171 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:42] [INFO ] Deduced a trap composed of 14 places in 84 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:42] [INFO ] Deduced a trap composed of 14 places in 84 ms of which 7 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 2/173 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:44] [INFO ] Deduced a trap composed of 14 places in 119 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:44] [INFO ] Deduced a trap composed of 14 places in 107 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:44] [INFO ] Deduced a trap composed of 21 places in 94 ms of which 13 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 3/176 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:45] [INFO ] Deduced a trap composed of 15 places in 126 ms of which 10 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 1/177 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/90 variables, 0/177 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 10 (OVERLAPS) 136/226 variables, 90/267 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/226 variables, 24/291 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:48] [INFO ] Deduced a trap composed of 14 places in 105 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:49] [INFO ] Deduced a trap composed of 15 places in 83 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:49] [INFO ] Deduced a trap composed of 15 places in 115 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:49] [INFO ] Deduced a trap composed of 15 places in 102 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:49] [INFO ] Deduced a trap composed of 14 places in 105 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:49] [INFO ] Deduced a trap composed of 21 places in 91 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:49] [INFO ] Deduced a trap composed of 12 places in 90 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:49] [INFO ] Deduced a trap composed of 12 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:50] [INFO ] Deduced a trap composed of 12 places in 103 ms of which 9 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/226 variables, 9/300 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/226 variables, 0/300 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:54] [INFO ] Deduced a trap composed of 21 places in 101 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:54] [INFO ] Deduced a trap composed of 21 places in 116 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:54] [INFO ] Deduced a trap composed of 21 places in 76 ms of which 5 ms to minimize.
At refinement iteration 14 (OVERLAPS) 0/226 variables, 3/303 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/226 variables, 0/303 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:51:59] [INFO ] Deduced a trap composed of 12 places in 122 ms of which 12 ms to minimize.
At refinement iteration 16 (OVERLAPS) 0/226 variables, 1/304 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/226 variables, 0/304 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 226/226 variables, and 304 constraints, problems are : Problem set: 24 solved, 144 unsolved in 30029 ms.
Refiners :[Domain max(s): 90/90 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 168/168 constraints, Known Traps: 78/78 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 86/86 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 6/92 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 56/148 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/86 variables, 0/148 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 4 (OVERLAPS) 4/90 variables, 16/164 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 4/168 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 22/190 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 0/190 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 8 (OVERLAPS) 136/226 variables, 90/280 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/226 variables, 24/304 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/226 variables, 144/448 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:12] [INFO ] Deduced a trap along path composed of 4 places in 37 ms of which 4 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/226 variables, 1/449 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:20] [INFO ] Deduced a trap composed of 15 places in 78 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:20] [INFO ] Deduced a trap composed of 14 places in 71 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:20] [INFO ] Deduced a trap composed of 16 places in 71 ms of which 5 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/226 variables, 3/452 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:25] [INFO ] Deduced a trap composed of 21 places in 49 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:26] [INFO ] Deduced a trap composed of 14 places in 102 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:26] [INFO ] Deduced a trap composed of 15 places in 103 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:26] [INFO ] Deduced a trap composed of 15 places in 112 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:27] [INFO ] Deduced a trap composed of 14 places in 87 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:27] [INFO ] Deduced a trap composed of 15 places in 121 ms of which 11 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/226 variables, 6/458 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 226/226 variables, and 458 constraints, problems are : Problem set: 24 solved, 144 unsolved in 30018 ms.
Refiners :[Domain max(s): 90/90 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 144/168 constraints, Known Traps: 87/87 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 60200ms problems are : Problem set: 24 solved, 144 unsolved
Search for dead transitions found 24 dead transitions in 60218ms
Found 24 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 24 transitions
Dead transitions reduction (with SMT) removed 24 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 90/90 places, 148/172 transitions.
Applied a total of 0 rules in 12 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 22:52:34] [INFO ] Redundant transitions in 7 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 60900 ms. Remains : 90/90 places, 148/172 transitions.
[2026-05-25 22:52:34] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
// Phase 1: matrix 120 rows 90 cols
[2026-05-25 22:52:34] [INFO ] Computed 22 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[4]
RANDOM walk for 1000000 steps (2 resets) in 1544 ms. (647 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 535 ms. (1865 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 22:52:36] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 22:52:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:52:36] [INFO ] [Real]Absence check using 22 positive place invariants in 10 ms returned sat
[2026-05-25 22:52:36] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2026-05-25 22:52:36] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-25 22:52:36] [INFO ] [Real]Added 20 Read/Feed constraints in 5 ms returned sat
[2026-05-25 22:52:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 22:52:36] [INFO ] [Nat]Absence check using 22 positive place invariants in 10 ms returned sat
[2026-05-25 22:52:36] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2026-05-25 22:52:36] [INFO ] [Nat]Added 20 Read/Feed constraints in 6 ms returned sat
[2026-05-25 22:52:36] [INFO ] Computed and/alt/rep : 104/420/104 causal constraints (skipped 12 transitions) in 13 ms.
[2026-05-25 22:52:36] [INFO ] Added : 47 causal constraints over 10 iterations in 201 ms. Result :sat
Minimization took 149 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[4]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 148/148 transitions.
Applied a total of 0 rules in 11 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 90/90 places, 148/148 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 148/148 transitions.
Applied a total of 0 rules in 11 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
[2026-05-25 22:52:36] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 22:52:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 22:52:37] [INFO ] Implicit Places using invariants in 229 ms returned []
[2026-05-25 22:52:37] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 22:52:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 22:52:37] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-25 22:52:37] [INFO ] Implicit Places using invariants and state equation in 370 ms returned []
Implicit Place search using SMT with State Equation took 601 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 22:52:37] [INFO ] Redundant transitions in 8 ms returned []
Running 144 sub problems to find dead transitions.
[2026-05-25 22:52:37] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 22:52:37] [INFO ] Invariant cache hit.
[2026-05-25 22:52:37] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 86/86 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 6/92 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 3 (OVERLAPS) 4/90 variables, 16/108 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 4/112 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 6 places in 95 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 6 places in 76 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 6 places in 105 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 9 places in 108 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 9 places in 106 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 10 places in 99 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 9 places in 97 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 12 places in 45 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 12 places in 50 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:40] [INFO ] Deduced a trap composed of 10 places in 75 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 12 places in 53 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 9 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 9 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 9 places in 111 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 9 places in 89 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 15 places in 89 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 7 places in 47 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 15 places in 92 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 15 places in 86 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:41] [INFO ] Deduced a trap composed of 15 places in 102 ms of which 11 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 20/132 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 12 places in 83 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 15 places in 94 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 15 places in 113 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 9 places in 107 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 21 places in 101 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 21 places in 76 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 7 places in 65 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 21 places in 54 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:42] [INFO ] Deduced a trap composed of 12 places in 87 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 12 places in 86 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 12 places in 106 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 12 places in 95 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 13 places in 96 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 13 places in 98 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 7 places in 39 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 12 places in 71 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:43] [INFO ] Deduced a trap composed of 21 places in 129 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:44] [INFO ] Deduced a trap composed of 21 places in 117 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:44] [INFO ] Deduced a trap composed of 21 places in 120 ms of which 13 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 20/152 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:45] [INFO ] Deduced a trap composed of 15 places in 103 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:45] [INFO ] Deduced a trap composed of 14 places in 106 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:45] [INFO ] Deduced a trap composed of 14 places in 109 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:45] [INFO ] Deduced a trap composed of 15 places in 104 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:45] [INFO ] Deduced a trap composed of 14 places in 116 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:45] [INFO ] Deduced a trap composed of 15 places in 80 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:46] [INFO ] Deduced a trap composed of 12 places in 79 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:46] [INFO ] Deduced a trap composed of 12 places in 82 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:46] [INFO ] Deduced a trap composed of 12 places in 110 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:46] [INFO ] Deduced a trap composed of 21 places in 105 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:46] [INFO ] Deduced a trap composed of 12 places in 94 ms of which 7 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 11/163 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:46] [INFO ] Deduced a trap composed of 15 places in 92 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:46] [INFO ] Deduced a trap composed of 15 places in 116 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:47] [INFO ] Deduced a trap composed of 21 places in 109 ms of which 16 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 3/166 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:48] [INFO ] Deduced a trap composed of 14 places in 124 ms of which 11 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/90 variables, 1/167 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/90 variables, 0/167 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 11 (OVERLAPS) 120/210 variables, 90/257 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/210 variables, 20/277 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:53] [INFO ] Deduced a trap composed of 21 places in 53 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:53] [INFO ] Deduced a trap composed of 21 places in 62 ms of which 4 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/210 variables, 2/279 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/210 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:58] [INFO ] Deduced a trap composed of 14 places in 103 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:52:58] [INFO ] Deduced a trap composed of 14 places in 103 ms of which 9 ms to minimize.
At refinement iteration 15 (OVERLAPS) 0/210 variables, 2/281 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:01] [INFO ] Deduced a trap composed of 6 places in 42 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:01] [INFO ] Deduced a trap composed of 14 places in 96 ms of which 11 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/210 variables, 2/283 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/210 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 18 (OVERLAPS) 0/210 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 144 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 283 constraints, problems are : Problem set: 0 solved, 144 unsolved in 30014 ms.
Refiners :[Domain max(s): 90/90 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 144/144 constraints, Known Traps: 61/61 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 86/86 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 6/92 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 36/128 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/86 variables, 0/128 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 4 (OVERLAPS) 4/90 variables, 16/144 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 4/148 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 25/173 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 8 (OVERLAPS) 120/210 variables, 90/263 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 20/283 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/210 variables, 144/427 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:14] [INFO ] Deduced a trap composed of 12 places in 68 ms of which 7 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/210 variables, 1/428 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:17] [INFO ] Deduced a trap composed of 14 places in 89 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:17] [INFO ] Deduced a trap composed of 15 places in 92 ms of which 11 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/210 variables, 2/430 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:21] [INFO ] Deduced a trap composed of 15 places in 97 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:21] [INFO ] Deduced a trap composed of 15 places in 98 ms of which 11 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/210 variables, 2/432 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:27] [INFO ] Deduced a trap composed of 14 places in 89 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:27] [INFO ] Deduced a trap composed of 15 places in 88 ms of which 9 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/210 variables, 2/434 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:32] [INFO ] Deduced a trap composed of 15 places in 95 ms of which 11 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/210 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:37] [INFO ] Deduced a trap along path composed of 4 places in 36 ms of which 2 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 210/210 variables, and 436 constraints, problems are : Problem set: 0 solved, 144 unsolved in 30014 ms.
Refiners :[Domain max(s): 90/90 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 144/144 constraints, Known Traps: 69/69 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 60096ms problems are : Problem set: 0 solved, 144 unsolved
Search for dead transitions found 0 dead transitions in 60098ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 60727 ms. Remains : 90/90 places, 148/148 transitions.
RANDOM walk for 40000 steps (8 resets) in 1004 ms. (39 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (8 resets) in 253 ms. (157 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 225 ms. (177 steps per ms) remains 2/2 properties
[2026-05-25 22:53:38] [INFO ] Flatten gal took : 102 ms
[2026-05-25 22:53:38] [INFO ] Flatten gal took : 47 ms
[2026-05-25 22:53:38] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2052711457528688491.gal : 17 ms
[2026-05-25 22:53:38] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16876195334739114795.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality2052711457528688491.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16876195334739114795.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality16876195334739114795.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :2 after 4
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :4 after 10
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :10 after 16
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :16 after 24
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :24 after 83
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :83 after 176
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :176 after 1367
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :1367 after 3308
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :3308 after 11037
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :70336 after 105471
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :105471 after 364090
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :652189 after 824356
Interrupted probabilistic random walk after 704469 steps, run timeout after 3001 ms. (steps per millisecond=234 ) properties seen :0 out of 2
Probabilistic random walk after 704469 steps, saw 180006 distinct states, run finished after 3006 ms. (steps per millisecond=234 ) properties seen :0
[2026-05-25 22:53:41] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 22:53:41] [INFO ] Invariant cache hit.
[2026-05-25 22:53:41] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 68/72 variables, 16/20 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 68/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 120/192 variables, 72/160 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/192 variables, 20/180 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/192 variables, 0/180 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 18/210 variables, 18/198 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 18/216 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/210 variables, 6/222 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/210 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/210 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 222 constraints, problems are : Problem set: 0 solved, 2 unsolved in 171 ms.
Refiners :[Domain max(s): 90/90 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 68/72 variables, 16/20 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 68/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 120/192 variables, 72/160 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/192 variables, 20/180 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/192 variables, 0/180 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 18/210 variables, 18/198 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 18/216 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/210 variables, 6/222 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/210 variables, 2/224 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,1.4985e+06,3.07217,69276,2,12452,20,226520,8,0,512,275015,0
Total reachable state count : 1498496

Verifying 2 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,3.07983,69276,1,0,20,226520,8,0,519,275015,0
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,3.08863,69276,1,0,20,226520,8,0,525,275015,0
[2026-05-25 22:53:41] [INFO ] Deduced a trap composed of 14 places in 76 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 22:53:41] [INFO ] Deduced a trap composed of 9 places in 76 ms of which 6 ms to minimize.
After SMT solving in domain Int declared 210/210 variables, and 226 constraints, problems are : Problem set: 2 solved, 0 unsolved in 314 ms.
Refiners :[Domain max(s): 90/90 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 497ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
FORMULA LamportFastMutEx-PT-4-UpperBounds-01 1 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 153070 ms.

BK_STOP 1779749621794

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="LamportFastMutEx-PT-4"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is LamportFastMutEx-PT-4, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r175-smll-177961111800052"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LamportFastMutEx-PT-4.tgz
mv LamportFastMutEx-PT-4 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;