About the Execution of LoLa+red for GPUForwardProgress-PT-24a
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 838.995 | 57295.00 | 67635.00 | 846.50 | FF?FFFFTTFFTFFFF | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2023-input.r199-smll-167840345500084.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is GPUForwardProgress-PT-24a, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r199-smll-167840345500084
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 512K
-rw-r--r-- 1 mcc users 7.6K Feb 25 14:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K Feb 25 14:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Feb 25 14:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Feb 25 14:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 25 14:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 114K Feb 25 14:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Feb 25 14:24 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 107K Feb 25 14:24 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:11 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 38K Mar 5 18:22 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-00
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-01
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-02
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-03
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-04
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-05
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-06
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-07
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-08
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-09
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-10
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-11
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-12
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-13
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-14
FORMULA_NAME GPUForwardProgress-PT-24a-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1678472124065
bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=lolaxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=GPUForwardProgress-PT-24a
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-10 18:15:27] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-10 18:15:27] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-10 18:15:27] [INFO ] Load time of PNML (sax parser for PT used): 99 ms
[2023-03-10 18:15:27] [INFO ] Transformed 104 places.
[2023-03-10 18:15:27] [INFO ] Transformed 129 transitions.
[2023-03-10 18:15:27] [INFO ] Found NUPN structural information;
[2023-03-10 18:15:27] [INFO ] Parsed PT model containing 104 places and 129 transitions and 501 arcs in 257 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 16 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 1 formulas.
Ensure Unique test removed 26 transitions
Reduce redundant transitions removed 26 transitions.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 31 out of 104 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 103/103 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 103 transition count 103
Applied a total of 1 rules in 29 ms. Remains 103 /104 variables (removed 1) and now considering 103/103 (removed 0) transitions.
// Phase 1: matrix 103 rows 103 cols
[2023-03-10 18:15:28] [INFO ] Computed 25 place invariants in 13 ms
[2023-03-10 18:15:28] [INFO ] Implicit Places using invariants in 426 ms returned []
[2023-03-10 18:15:28] [INFO ] Invariant cache hit.
[2023-03-10 18:15:28] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:29] [INFO ] Implicit Places using invariants and state equation in 339 ms returned []
Implicit Place search using SMT with State Equation took 826 ms to find 0 implicit places.
[2023-03-10 18:15:29] [INFO ] Invariant cache hit.
[2023-03-10 18:15:29] [INFO ] Dead Transitions using invariants and state equation in 253 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 103/104 places, 103/103 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1111 ms. Remains : 103/104 places, 103/103 transitions.
Support contains 31 out of 103 places after structural reductions.
[2023-03-10 18:15:29] [INFO ] Flatten gal took : 70 ms
[2023-03-10 18:15:29] [INFO ] Flatten gal took : 29 ms
[2023-03-10 18:15:29] [INFO ] Input system was already deterministic with 103 transitions.
Finished random walk after 1555 steps, including 4 resets, run visited all 32 properties in 178 ms. (steps per millisecond=8 )
FORMULA GPUForwardProgress-PT-24a-LTLFireability-00 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 1 stabilizing places and 1 stable transitions
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.6 ms
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 3 out of 103 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.2 ms
Discarding 25 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Performed 23 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 23 Pre rules applied. Total rules applied 1 place count 78 transition count 79
Deduced a syphon composed of 23 places in 0 ms
Reduce places removed 23 places and 0 transitions.
Iterating global reduction 0 with 46 rules applied. Total rules applied 47 place count 55 transition count 79
Applied a total of 47 rules in 37 ms. Remains 55 /103 variables (removed 48) and now considering 79/103 (removed 24) transitions.
// Phase 1: matrix 79 rows 55 cols
[2023-03-10 18:15:30] [INFO ] Computed 1 place invariants in 4 ms
[2023-03-10 18:15:30] [INFO ] Implicit Places using invariants in 88 ms returned []
[2023-03-10 18:15:30] [INFO ] Invariant cache hit.
[2023-03-10 18:15:31] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:31] [INFO ] Implicit Places using invariants and state equation in 161 ms returned []
Implicit Place search using SMT with State Equation took 251 ms to find 0 implicit places.
[2023-03-10 18:15:31] [INFO ] Redundant transitions in 3 ms returned []
[2023-03-10 18:15:31] [INFO ] Invariant cache hit.
[2023-03-10 18:15:31] [INFO ] Dead Transitions using invariants and state equation in 124 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 55/103 places, 79/103 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 426 ms. Remains : 55/103 places, 79/103 transitions.
Stuttering acceptance computed with spot in 269 ms :[(NOT p0)]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (EQ s23 1) (EQ s51 1) (EQ s54 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 2 steps with 0 reset in 3 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-01 finished in 798 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)||G(F(p1)))))'
Support contains 4 out of 103 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.3 ms
Discarding 25 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Performed 23 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 23 Pre rules applied. Total rules applied 1 place count 78 transition count 79
Deduced a syphon composed of 23 places in 0 ms
Reduce places removed 23 places and 0 transitions.
Iterating global reduction 0 with 46 rules applied. Total rules applied 47 place count 55 transition count 79
Applied a total of 47 rules in 27 ms. Remains 55 /103 variables (removed 48) and now considering 79/103 (removed 24) transitions.
// Phase 1: matrix 79 rows 55 cols
[2023-03-10 18:15:31] [INFO ] Computed 1 place invariants in 2 ms
[2023-03-10 18:15:31] [INFO ] Implicit Places using invariants in 74 ms returned []
[2023-03-10 18:15:31] [INFO ] Invariant cache hit.
[2023-03-10 18:15:31] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:31] [INFO ] Implicit Places using invariants and state equation in 146 ms returned []
Implicit Place search using SMT with State Equation took 224 ms to find 0 implicit places.
[2023-03-10 18:15:31] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-10 18:15:31] [INFO ] Invariant cache hit.
[2023-03-10 18:15:31] [INFO ] Dead Transitions using invariants and state equation in 115 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 55/103 places, 79/103 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 378 ms. Remains : 55/103 places, 79/103 transitions.
Stuttering acceptance computed with spot in 201 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=0 dest: 1}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(EQ s20 1), p1:(OR (NEQ s49 1) (NEQ s51 1) (NEQ s54 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 11890 reset in 940 ms.
Product exploration explored 100000 steps with 11939 reset in 535 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p0) p1), (X (NOT (AND p0 (NOT p1)))), (X (AND (NOT p0) (NOT p1))), (X (X (NOT (AND p0 (NOT p1))))), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : []
Knowledge based reduction with 5 factoid took 219 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 104 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Finished random walk after 29 steps, including 0 resets, run visited all 2 properties in 2 ms. (steps per millisecond=14 )
Knowledge obtained : [(AND (NOT p0) p1), (X (NOT (AND p0 (NOT p1)))), (X (AND (NOT p0) (NOT p1))), (X (X (NOT (AND p0 (NOT p1))))), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(F (AND (NOT p0) (NOT p1))), (F (AND p0 (NOT p1)))]
Knowledge based reduction with 5 factoid took 337 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 104 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 101 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Support contains 4 out of 55 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 55/55 places, 79/79 transitions.
Applied a total of 0 rules in 10 ms. Remains 55 /55 variables (removed 0) and now considering 79/79 (removed 0) transitions.
[2023-03-10 18:15:34] [INFO ] Invariant cache hit.
[2023-03-10 18:15:34] [INFO ] Implicit Places using invariants in 79 ms returned []
[2023-03-10 18:15:34] [INFO ] Invariant cache hit.
[2023-03-10 18:15:34] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:34] [INFO ] Implicit Places using invariants and state equation in 138 ms returned []
Implicit Place search using SMT with State Equation took 221 ms to find 0 implicit places.
[2023-03-10 18:15:34] [INFO ] Redundant transitions in 3 ms returned []
[2023-03-10 18:15:34] [INFO ] Invariant cache hit.
[2023-03-10 18:15:34] [INFO ] Dead Transitions using invariants and state equation in 113 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 355 ms. Remains : 55/55 places, 79/79 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p0) p1), (X (NOT (AND p0 (NOT p1)))), (X (AND (NOT p0) (NOT p1))), (X (X (NOT (AND p0 (NOT p1))))), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : []
Knowledge based reduction with 5 factoid took 274 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 103 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Finished random walk after 84 steps, including 1 resets, run visited all 2 properties in 3 ms. (steps per millisecond=28 )
Knowledge obtained : [(AND (NOT p0) p1), (X (NOT (AND p0 (NOT p1)))), (X (AND (NOT p0) (NOT p1))), (X (X (NOT (AND p0 (NOT p1))))), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(F (AND (NOT p0) (NOT p1))), (F (AND p0 (NOT p1)))]
Knowledge based reduction with 5 factoid took 342 ms. Reduced automaton from 2 states, 4 edges and 2 AP (stutter insensitive) to 2 states, 4 edges and 2 AP (stutter insensitive).
Stuttering acceptance computed with spot in 99 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 101 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 103 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Product exploration explored 100000 steps with 12424 reset in 687 ms.
Product exploration explored 100000 steps with 12382 reset in 489 ms.
Support contains 4 out of 55 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 55/55 places, 79/79 transitions.
Applied a total of 0 rules in 6 ms. Remains 55 /55 variables (removed 0) and now considering 79/79 (removed 0) transitions.
[2023-03-10 18:15:37] [INFO ] Invariant cache hit.
[2023-03-10 18:15:37] [INFO ] Implicit Places using invariants in 45 ms returned []
[2023-03-10 18:15:37] [INFO ] Invariant cache hit.
[2023-03-10 18:15:37] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:37] [INFO ] Implicit Places using invariants and state equation in 86 ms returned []
Implicit Place search using SMT with State Equation took 134 ms to find 0 implicit places.
[2023-03-10 18:15:37] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-10 18:15:37] [INFO ] Invariant cache hit.
[2023-03-10 18:15:37] [INFO ] Dead Transitions using invariants and state equation in 64 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 217 ms. Remains : 55/55 places, 79/79 transitions.
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-02 finished in 5866 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 1 out of 103 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.0 ms
Discarding 25 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Reduce places removed 1 places and 1 transitions.
Performed 23 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 23 Pre rules applied. Total rules applied 1 place count 77 transition count 78
Deduced a syphon composed of 23 places in 0 ms
Reduce places removed 23 places and 0 transitions.
Iterating global reduction 0 with 46 rules applied. Total rules applied 47 place count 54 transition count 78
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 49 place count 53 transition count 77
Applied a total of 49 rules in 13 ms. Remains 53 /103 variables (removed 50) and now considering 77/103 (removed 26) transitions.
// Phase 1: matrix 77 rows 53 cols
[2023-03-10 18:15:37] [INFO ] Computed 1 place invariants in 1 ms
[2023-03-10 18:15:37] [INFO ] Implicit Places using invariants in 48 ms returned []
[2023-03-10 18:15:37] [INFO ] Invariant cache hit.
[2023-03-10 18:15:37] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-10 18:15:37] [INFO ] Implicit Places using invariants and state equation in 79 ms returned []
Implicit Place search using SMT with State Equation took 131 ms to find 0 implicit places.
[2023-03-10 18:15:37] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-10 18:15:37] [INFO ] Invariant cache hit.
[2023-03-10 18:15:37] [INFO ] Dead Transitions using invariants and state equation in 63 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 53/103 places, 77/103 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 216 ms. Remains : 53/103 places, 77/103 transitions.
Stuttering acceptance computed with spot in 36 ms :[(NOT p0)]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(EQ s3 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-03 finished in 265 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(F((G(F(p0))||(F(p0)&&G(p1)))))||(F((!p2 U (G(!p2)||(!p2&&G(p3)))))&&F((G(F(p0))||(F(p0)&&G(p1)))))))'
Support contains 6 out of 103 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.0 ms
Discarding 25 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Performed 21 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 21 Pre rules applied. Total rules applied 1 place count 78 transition count 81
Deduced a syphon composed of 21 places in 0 ms
Reduce places removed 21 places and 0 transitions.
Iterating global reduction 0 with 42 rules applied. Total rules applied 43 place count 57 transition count 81
Applied a total of 43 rules in 10 ms. Remains 57 /103 variables (removed 46) and now considering 81/103 (removed 22) transitions.
// Phase 1: matrix 81 rows 57 cols
[2023-03-10 18:15:37] [INFO ] Computed 1 place invariants in 4 ms
[2023-03-10 18:15:37] [INFO ] Implicit Places using invariants in 44 ms returned []
[2023-03-10 18:15:37] [INFO ] Invariant cache hit.
[2023-03-10 18:15:37] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:37] [INFO ] Implicit Places using invariants and state equation in 78 ms returned []
Implicit Place search using SMT with State Equation took 125 ms to find 0 implicit places.
[2023-03-10 18:15:37] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-10 18:15:37] [INFO ] Invariant cache hit.
[2023-03-10 18:15:37] [INFO ] Dead Transitions using invariants and state equation in 82 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 57/103 places, 81/103 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 225 ms. Remains : 57/103 places, 81/103 transitions.
Stuttering acceptance computed with spot in 370 ms :[(NOT p0), (NOT p0), (AND (NOT p0) p2), (NOT p0), (AND (NOT p0) p2), (AND (NOT p0) (NOT p3) p2), (AND (NOT p0) (NOT p3) p2), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 3}, { cond=(OR (NOT p3) p2), acceptance={} source=0 dest: 4}, { cond=(AND p3 (NOT p2)), acceptance={} source=0 dest: 6}, { cond=p1, acceptance={} source=0 dest: 7}], [{ cond=(NOT p0), acceptance={0, 1} source=1 dest: 1}], [{ cond=(AND (NOT p0) (NOT p3) (NOT p2)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p0) p2), acceptance={0, 1} source=2 dest: 2}, { cond=(AND (NOT p0) p3 (NOT p2)), acceptance={} source=2 dest: 5}], [{ cond=(NOT p0), acceptance={} source=3 dest: 1}, { cond=(NOT p1), acceptance={} source=3 dest: 3}, { cond=p1, acceptance={} source=3 dest: 7}], [{ cond=(OR (AND (NOT p0) (NOT p3)) (AND (NOT p0) p2)), acceptance={} source=4 dest: 2}, { cond=(OR (NOT p3) p2), acceptance={} source=4 dest: 4}, { cond=(AND p3 (NOT p2)), acceptance={} source=4 dest: 6}], [{ cond=(AND (NOT p0) (NOT p3) (NOT p2)), acceptance={0} source=5 dest: 2}, { cond=(AND (NOT p0) (NOT p3) p2), acceptance={0, 1} source=5 dest: 2}, { cond=(AND (NOT p0) p3 (NOT p2)), acceptance={} source=5 dest: 5}, { cond=(AND (NOT p0) p3 p2), acceptance={1} source=5 dest: 5}], [{ cond=(AND (NOT p0) (NOT p3)), acceptance={} source=6 dest: 2}, { cond=(NOT p3), acceptance={} source=6 dest: 4}, { cond=(AND (NOT p0) p3 p2), acceptance={} source=6 dest: 5}, { cond=p3, acceptance={} source=6 dest: 6}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=7 dest: 1}, { cond=(NOT p1), acceptance={} source=7 dest: 3}, { cond=p1, acceptance={} source=7 dest: 7}]], initial=0, aps=[p0:(NEQ s7 1), p1:(EQ s10 1), p3:(AND (EQ s9 1) (EQ s53 1) (EQ s56 1)), p2:(AND (EQ s17 1) (EQ s53 1) (EQ s56 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null, null, null, null, null][true, true, true, true, true, true, true, true]]
Stuttering criterion allowed to conclude after 297 steps with 3 reset in 5 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-04 finished in 634 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(p0)))'
Support contains 3 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 8 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
// Phase 1: matrix 103 rows 103 cols
[2023-03-10 18:15:38] [INFO ] Computed 25 place invariants in 3 ms
[2023-03-10 18:15:38] [INFO ] Implicit Places using invariants in 155 ms returned []
[2023-03-10 18:15:38] [INFO ] Invariant cache hit.
[2023-03-10 18:15:38] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:38] [INFO ] Implicit Places using invariants and state equation in 273 ms returned []
Implicit Place search using SMT with State Equation took 433 ms to find 0 implicit places.
[2023-03-10 18:15:38] [INFO ] Invariant cache hit.
[2023-03-10 18:15:38] [INFO ] Dead Transitions using invariants and state equation in 176 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 620 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 100 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (EQ s34 1) (EQ s98 1) (EQ s102 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null][false, false]]
Stuttering criterion allowed to conclude after 2 steps with 0 reset in 0 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-05 finished in 740 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((p0&&G(F(p0))))))'
Support contains 1 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 9 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
[2023-03-10 18:15:39] [INFO ] Invariant cache hit.
[2023-03-10 18:15:39] [INFO ] Implicit Places using invariants in 161 ms returned []
[2023-03-10 18:15:39] [INFO ] Invariant cache hit.
[2023-03-10 18:15:39] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:39] [INFO ] Implicit Places using invariants and state equation in 296 ms returned []
Implicit Place search using SMT with State Equation took 459 ms to find 0 implicit places.
[2023-03-10 18:15:39] [INFO ] Invariant cache hit.
[2023-03-10 18:15:39] [INFO ] Dead Transitions using invariants and state equation in 173 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 643 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 262 ms :[(NOT p0), (NOT p0), (NOT p0), true, (NOT p0), (NOT p0)]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 3}, { cond=p0, acceptance={} source=2 dest: 4}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=true, acceptance={} source=4 dest: 4}, { cond=(NOT p0), acceptance={} source=4 dest: 5}], [{ cond=(NOT p0), acceptance={0} source=5 dest: 5}]], initial=0, aps=[p0:(EQ s47 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-06 finished in 929 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(F(p1))||p0)))'
Support contains 3 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 7 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
[2023-03-10 18:15:40] [INFO ] Invariant cache hit.
[2023-03-10 18:15:40] [INFO ] Implicit Places using invariants in 147 ms returned []
[2023-03-10 18:15:40] [INFO ] Invariant cache hit.
[2023-03-10 18:15:40] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:40] [INFO ] Implicit Places using invariants and state equation in 293 ms returned []
Implicit Place search using SMT with State Equation took 443 ms to find 0 implicit places.
[2023-03-10 18:15:40] [INFO ] Invariant cache hit.
[2023-03-10 18:15:40] [INFO ] Dead Transitions using invariants and state equation in 166 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 618 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 206 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (NOT p1), (NOT p1)]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=1 dest: 2}, { cond=(NOT p0), acceptance={} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={} source=3 dest: 2}, { cond=true, acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(OR (EQ s47 0) (EQ s79 0)), p1:(EQ s78 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 585 ms.
Product exploration explored 100000 steps with 50000 reset in 512 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.1 ms
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p0 (NOT p1)), (X p0), (X (NOT (AND (NOT p0) (NOT p1)))), true, (X (X (NOT p1)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 5 factoid took 80 ms. Reduced automaton from 4 states, 6 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA GPUForwardProgress-PT-24a-LTLFireability-07 TRUE TECHNIQUES KNOWLEDGE
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-07 finished in 2033 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0||F(p1)||X((p2 U (p3||G(p2)))))))'
Support contains 4 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 5 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
[2023-03-10 18:15:42] [INFO ] Invariant cache hit.
[2023-03-10 18:15:42] [INFO ] Implicit Places using invariants in 97 ms returned []
[2023-03-10 18:15:42] [INFO ] Invariant cache hit.
[2023-03-10 18:15:42] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:42] [INFO ] Implicit Places using invariants and state equation in 190 ms returned []
Implicit Place search using SMT with State Equation took 289 ms to find 0 implicit places.
[2023-03-10 18:15:42] [INFO ] Invariant cache hit.
[2023-03-10 18:15:42] [INFO ] Dead Transitions using invariants and state equation in 176 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 472 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 219 ms :[(NOT p1), (AND (NOT p1) (NOT p0) (NOT p3) (NOT p2)), (AND (NOT p1) (NOT p0) (NOT p3) (NOT p2)), (AND (NOT p1) (NOT p3) (NOT p2))]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 3}], [{ cond=(AND (NOT p1) (NOT p3) (NOT p2)), acceptance={} source=3 dest: 0}, { cond=(AND (NOT p1) (NOT p3) p2), acceptance={} source=3 dest: 3}]], initial=1, aps=[p1:(EQ s97 0), p0:(EQ s91 0), p3:(AND (NEQ s63 1) (NEQ s15 1)), p2:(NEQ s15 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 584 ms.
Product exploration explored 100000 steps with 50000 reset in 358 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.1 ms
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p1 p0 p3 p2), (X (NOT (AND (NOT p0) (NOT p1))))]
False Knowledge obtained : [(X (X (AND (NOT p1) (NOT p3) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p3) (NOT p2))))), (X (X (AND (NOT p1) (NOT p3) p2))), (X (X (NOT (AND (NOT p1) (NOT p3) p2))))]
Property proved to be true thanks to knowledge :(X (NOT (AND (NOT p0) (NOT p1))))
Knowledge based reduction with 2 factoid took 128 ms. Reduced automaton from 4 states, 5 edges and 4 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA GPUForwardProgress-PT-24a-LTLFireability-08 TRUE TECHNIQUES KNOWLEDGE
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-08 finished in 1783 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0)||X((G(p1)||X(p2)))))'
Support contains 5 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 3 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
[2023-03-10 18:15:43] [INFO ] Invariant cache hit.
[2023-03-10 18:15:43] [INFO ] Implicit Places using invariants in 149 ms returned []
[2023-03-10 18:15:43] [INFO ] Invariant cache hit.
[2023-03-10 18:15:44] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:44] [INFO ] Implicit Places using invariants and state equation in 264 ms returned []
Implicit Place search using SMT with State Equation took 415 ms to find 0 implicit places.
[2023-03-10 18:15:44] [INFO ] Invariant cache hit.
[2023-03-10 18:15:44] [INFO ] Dead Transitions using invariants and state equation in 173 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 593 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 537 ms :[true, (NOT p2), (AND (NOT p2) (NOT p0) (NOT p1)), (AND (NOT p2) (NOT p1)), (AND (NOT p2) (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2)), (AND (NOT p1) (NOT p0) (NOT p2)), (NOT p1), (NOT p0), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p2), acceptance={} source=1 dest: 0}], [{ cond=(NOT p0), acceptance={} source=2 dest: 3}, { cond=p0, acceptance={} source=2 dest: 4}], [{ cond=(NOT p1), acceptance={} source=3 dest: 1}, { cond=p1, acceptance={} source=3 dest: 5}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=4 dest: 1}, { cond=(AND (NOT p0) p1), acceptance={} source=4 dest: 5}, { cond=(AND p0 (NOT p1)), acceptance={} source=4 dest: 6}, { cond=(AND p0 p1), acceptance={} source=4 dest: 7}], [{ cond=(AND (NOT p1) (NOT p2)), acceptance={} source=5 dest: 0}, { cond=(AND p1 (NOT p2)), acceptance={} source=5 dest: 8}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={} source=6 dest: 0}, { cond=(AND p0 (NOT p2)), acceptance={} source=6 dest: 9}], [{ cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=7 dest: 0}, { cond=(AND (NOT p0) p1 (NOT p2)), acceptance={} source=7 dest: 8}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=7 dest: 9}, { cond=(AND p0 p1 (NOT p2)), acceptance={} source=7 dest: 10}], [{ cond=(NOT p1), acceptance={} source=8 dest: 0}, { cond=p1, acceptance={} source=8 dest: 8}], [{ cond=(NOT p0), acceptance={} source=9 dest: 0}, { cond=p0, acceptance={} source=9 dest: 9}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=10 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={} source=10 dest: 8}, { cond=(AND p0 (NOT p1)), acceptance={} source=10 dest: 9}, { cond=(AND p0 p1), acceptance={} source=10 dest: 10}]], initial=2, aps=[p2:(EQ s51 0), p0:(EQ s7 1), p1:(OR (AND (EQ s48 1) (EQ s98 1) (EQ s102 1)) (EQ s7 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 8 steps with 2 reset in 0 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-10 finished in 1155 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(F(!p0)) U (p1||X(p2))))'
Support contains 5 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 2 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
[2023-03-10 18:15:44] [INFO ] Invariant cache hit.
[2023-03-10 18:15:45] [INFO ] Implicit Places using invariants in 154 ms returned []
[2023-03-10 18:15:45] [INFO ] Invariant cache hit.
[2023-03-10 18:15:45] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:45] [INFO ] Implicit Places using invariants and state equation in 229 ms returned []
Implicit Place search using SMT with State Equation took 385 ms to find 0 implicit places.
[2023-03-10 18:15:45] [INFO ] Invariant cache hit.
[2023-03-10 18:15:45] [INFO ] Dead Transitions using invariants and state equation in 107 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 496 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 112 ms :[(AND (NOT p1) (NOT p2)), (OR (AND (NOT p1) (NOT p2)) (AND p0 (NOT p2))), p0]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p1) (NOT p2)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p2) p0), acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={} source=2 dest: 2}]], initial=0, aps=[p1:(AND (EQ s94 1) (EQ s98 1) (EQ s102 1)), p2:(NEQ s51 1), p0:(EQ s78 1)], nbAcceptance=0, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 447 ms.
Product exploration explored 100000 steps with 50000 reset in 645 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.2 ms
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p1) p2 (NOT p0)), (X (NOT (AND (NOT p2) p0))), (X (NOT (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p2) p0)))), (X (X (NOT p0)))]
False Knowledge obtained : [(X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p2)))))]
Property proved to be true thanks to knowledge :(X (X (NOT p0)))
Knowledge based reduction with 5 factoid took 211 ms. Reduced automaton from 3 states, 4 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA GPUForwardProgress-PT-24a-LTLFireability-11 TRUE TECHNIQUES KNOWLEDGE
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-11 finished in 1939 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0||G(p1))))'
Support contains 4 out of 103 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Graph (complete) has 328 edges and 103 vertex of which 78 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.1 ms
Discarding 25 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 22 Pre rules applied. Total rules applied 1 place count 78 transition count 80
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 0 with 44 rules applied. Total rules applied 45 place count 56 transition count 80
Applied a total of 45 rules in 9 ms. Remains 56 /103 variables (removed 47) and now considering 80/103 (removed 23) transitions.
// Phase 1: matrix 80 rows 56 cols
[2023-03-10 18:15:46] [INFO ] Computed 1 place invariants in 1 ms
[2023-03-10 18:15:46] [INFO ] Implicit Places using invariants in 44 ms returned []
[2023-03-10 18:15:46] [INFO ] Invariant cache hit.
[2023-03-10 18:15:46] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:47] [INFO ] Implicit Places using invariants and state equation in 69 ms returned []
Implicit Place search using SMT with State Equation took 115 ms to find 0 implicit places.
[2023-03-10 18:15:47] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-10 18:15:47] [INFO ] Invariant cache hit.
[2023-03-10 18:15:47] [INFO ] Dead Transitions using invariants and state equation in 61 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 56/103 places, 80/103 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 194 ms. Remains : 56/103 places, 80/103 transitions.
Stuttering acceptance computed with spot in 67 ms :[(AND (NOT p1) (NOT p0))]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(AND p1 (NOT p0)), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p1:(EQ s8 0), p0:(AND (EQ s42 1) (EQ s52 1) (EQ s55 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 137 steps with 0 reset in 1 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-12 finished in 275 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F((p0&&F(G(p1))&&G(p2)))))'
Support contains 3 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 1 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
// Phase 1: matrix 103 rows 103 cols
[2023-03-10 18:15:47] [INFO ] Computed 25 place invariants in 2 ms
[2023-03-10 18:15:47] [INFO ] Implicit Places using invariants in 103 ms returned []
[2023-03-10 18:15:47] [INFO ] Invariant cache hit.
[2023-03-10 18:15:47] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:47] [INFO ] Implicit Places using invariants and state equation in 297 ms returned []
Implicit Place search using SMT with State Equation took 403 ms to find 0 implicit places.
[2023-03-10 18:15:47] [INFO ] Invariant cache hit.
[2023-03-10 18:15:47] [INFO ] Dead Transitions using invariants and state equation in 177 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 583 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 272 ms :[(OR (NOT p0) (NOT p2) (NOT p1)), (OR (NOT p0) (NOT p2) (NOT p1)), (NOT p1), (OR (NOT p2) (NOT p0)), (NOT p2)]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}, { cond=(OR (NOT p0) (NOT p2)), acceptance={} source=1 dest: 3}, { cond=(AND p0 p2), acceptance={} source=1 dest: 4}], [{ cond=p1, acceptance={} source=2 dest: 2}, { cond=(NOT p1), acceptance={0} source=2 dest: 2}], [{ cond=(OR (NOT p0) (NOT p2)), acceptance={0} source=3 dest: 3}, { cond=(AND p0 p2), acceptance={} source=3 dest: 4}], [{ cond=(NOT p2), acceptance={0} source=4 dest: 3}, { cond=p2, acceptance={} source=4 dest: 4}]], initial=0, aps=[p0:(EQ s35 1), p2:(EQ s3 1), p1:(EQ s100 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Stuttering criterion allowed to conclude after 2 steps with 0 reset in 0 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-13 finished in 878 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(G(p0)) U (p1&&(p2 U p0)&&X(p0))))'
Support contains 5 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 3 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
[2023-03-10 18:15:48] [INFO ] Invariant cache hit.
[2023-03-10 18:15:48] [INFO ] Implicit Places using invariants in 128 ms returned []
[2023-03-10 18:15:48] [INFO ] Invariant cache hit.
[2023-03-10 18:15:48] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:48] [INFO ] Implicit Places using invariants and state equation in 248 ms returned []
Implicit Place search using SMT with State Equation took 385 ms to find 0 implicit places.
[2023-03-10 18:15:48] [INFO ] Invariant cache hit.
[2023-03-10 18:15:48] [INFO ] Dead Transitions using invariants and state equation in 176 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 565 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 177 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p0), true]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=(OR (NOT p1) (AND (NOT p0) (NOT p2))), acceptance={0} source=0 dest: 0}, { cond=(OR (NOT p1) (AND (NOT p0) (NOT p2))), acceptance={0} source=0 dest: 1}, { cond=(OR (AND p1 p0) (AND p1 p2)), acceptance={0} source=0 dest: 2}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={} source=1 dest: 3}], [{ cond=(NOT p0), acceptance={} source=2 dest: 3}], [{ cond=true, acceptance={0} source=3 dest: 3}]], initial=0, aps=[p1:(NEQ s30 1), p0:(AND (EQ s28 1) (EQ s98 1) (EQ s102 1)), p2:(EQ s83 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-14 finished in 768 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&X((p1&&X((p1 U (!p2||G(p1))))))))'
Support contains 5 out of 103 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 103/103 places, 103/103 transitions.
Applied a total of 0 rules in 2 ms. Remains 103 /103 variables (removed 0) and now considering 103/103 (removed 0) transitions.
[2023-03-10 18:15:48] [INFO ] Invariant cache hit.
[2023-03-10 18:15:48] [INFO ] Implicit Places using invariants in 141 ms returned []
[2023-03-10 18:15:48] [INFO ] Invariant cache hit.
[2023-03-10 18:15:49] [INFO ] State equation strengthened by 25 read => feed constraints.
[2023-03-10 18:15:49] [INFO ] Implicit Places using invariants and state equation in 269 ms returned []
Implicit Place search using SMT with State Equation took 413 ms to find 0 implicit places.
[2023-03-10 18:15:49] [INFO ] Invariant cache hit.
[2023-03-10 18:15:49] [INFO ] Dead Transitions using invariants and state equation in 175 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 591 ms. Remains : 103/103 places, 103/103 transitions.
Stuttering acceptance computed with spot in 224 ms :[(OR (NOT p1) (NOT p0)), (NOT p0), (NOT p1), true, (AND (NOT p1) p2)]
Running random walk in product with property : GPUForwardProgress-PT-24a-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=true, acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(NOT p1), acceptance={} source=2 dest: 3}, { cond=p1, acceptance={} source=2 dest: 4}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=(AND (NOT p1) p2), acceptance={} source=4 dest: 3}, { cond=(AND p1 p2), acceptance={} source=4 dest: 4}]], initial=0, aps=[p0:(AND (EQ s38 1) (EQ s7 1)), p1:(OR (NEQ s8 1) (NEQ s98 1) (NEQ s102 1)), p2:(EQ s7 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA GPUForwardProgress-PT-24a-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GPUForwardProgress-PT-24a-LTLFireability-15 finished in 841 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)||G(F(p1)))))'
[2023-03-10 18:15:49] [INFO ] Flatten gal took : 19 ms
[2023-03-10 18:15:49] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/LTLFireability.sr.xml took 3 ms.
[2023-03-10 18:15:49] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 103 places, 103 transitions and 447 arcs took 3 ms.
Total runtime 22396 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT GPUForwardProgress-PT-24a
BK_EXAMINATION: LTLFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/374
LTLFireability
BK_STOP 1678472181360
--------------------
content from stderr:
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/374/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/374/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/374/LTLFireability.xml
lola: Rule S: 0 transitions removed,0 places removed
lola: Created skeleton in 0.000000 secs.
lola: NOTDEADLOCKFREE
lola: LAUNCH task # 1 (type EXCL) for 0 GPUForwardProgress-PT-24a-LTLFireability-02
lola: time limit : 3600 sec
lola: memory limit: 32 pages
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
PENDING FORMULAS: CATEGORY IDL ACT RUN SUS FIN C/T C/M OBS
GPUForwardProgress-PT-24a-LTLFireability-02: LTL 0 0 1 0 1 0 0 0
TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
1 LTL EXCL 5/3600 7/32 GPUForwardProgress-PT-24a-LTLFireability-02 937639 m, 187527 m/sec, 2789404 t fired, .
Time elapsed: 5 secs. Pages in use: 7
# running tasks: 1 of 4 Visible: 1
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GPUForwardProgress-PT-24a-LTLFireability-02: LTL 0 0 1 0 1 0 0 0
TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
1 LTL EXCL 10/3600 13/32 GPUForwardProgress-PT-24a-LTLFireability-02 1924881 m, 197448 m/sec, 6006132 t fired, .
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GPUForwardProgress-PT-24a-LTLFireability-02: LTL 0 0 1 0 1 0 0 0
TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
1 LTL EXCL 15/3600 19/32 GPUForwardProgress-PT-24a-LTLFireability-02 2879683 m, 190960 m/sec, 9150324 t fired, .
Time elapsed: 15 secs. Pages in use: 19
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GPUForwardProgress-PT-24a-LTLFireability-02: LTL 0 0 1 0 1 0 0 0
TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
1 LTL EXCL 20/3600 25/32 GPUForwardProgress-PT-24a-LTLFireability-02 3807992 m, 185661 m/sec, 12431099 t fired, .
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TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
1 LTL EXCL 25/3600 31/32 GPUForwardProgress-PT-24a-LTLFireability-02 4725015 m, 183404 m/sec, 15613091 t fired, .
Time elapsed: 25 secs. Pages in use: 31
# running tasks: 1 of 4 Visible: 1
lola: CANCELED task # 1 (type EXCL) for GPUForwardProgress-PT-24a-LTLFireability-02 (memory limit exceeded)
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
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lola: Portfolio finished: no open tasks 1
FINAL RESULTS
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GPUForwardProgress-PT-24a-LTLFireability-02: LTL unknown AGGR
Time elapsed: 30 secs. Pages in use: 32
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="GPUForwardProgress-PT-24a"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="lolaxred"
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 2-5348"
echo " Executing tool lolaxred"
echo " Input is GPUForwardProgress-PT-24a, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r199-smll-167840345500084"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/GPUForwardProgress-PT-24a.tgz
mv GPUForwardProgress-PT-24a execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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 '
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;