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.r146-tall-177961074000179.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 itstools
Input is GlobalResAllocation-COL-05, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r146-tall-177961074000179
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 472K
-rw-r--r-- 1 mcc users 8.4K Mar 7 12:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 7 12:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 7 12:15 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 7 12:15 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.6K Mar 15 10:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 10:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 15 10:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.8K Mar 7 12:49 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 73K Mar 7 12:49 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 7 12:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 89K Mar 7 12:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 10:27 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Mar 15 10:27 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 28K 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 booleans
BOOL_VECTOR

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

=== Now, execution of the tool begins

BK_START 1779705302830

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=GlobalResAllocation-COL-05
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
LTLCardinality COL
Running Version 202604301425
[2026-05-25 10:35:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 10:35:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 10:35:03] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2026-05-25 10:35:04] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-25 10:35:04] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 509 ms
[2026-05-25 10:35:04] [INFO ] Imported 5 HL places and 7 HL transitions for a total of 75 PT places and 56105.0 transition bindings in 12 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 16 ms.
Working with output stream class java.io.PrintStream
[2026-05-25 10:35:04] [INFO ] Built PT skeleton of HLPN with 5 places and 7 transitions 29 arcs in 7 ms.
[2026-05-25 10:35:04] [INFO ] Skeletonized 16 HLPN properties in 2 ms.
Initial state reduction rules removed 1 formulas.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
Remains 15 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
RANDOM walk for 40012 steps (8 resets) in 471 ms. (84 steps per ms) remains 3/26 properties
BEST_FIRST walk for 40004 steps (8 resets) in 214 ms. (186 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 172 ms. (231 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 166 ms. (239 steps per ms) remains 3/3 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17213558747200211785.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10842443697861062338.kers'
[2026-05-25 10:35:05] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17213558747200211785.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10842443697861062338.kers]
Normalized transition count is 6 out of 7 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 6 rows 3 cols 15 entries
Finished phase 1 with 1 SingleSign rule and 1 generalized
[2026-05-25 10:35:05] [INFO ] Computed 3 invariants in 0 ms
Computed 3 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-10842443697861062338.kers
Total runtime 0 ms.
Problem AtomicPropp20 is UNSAT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 2 unsolved
Problem AtomicPropp9 is UNSAT
Problem AtomicPropp17 is UNSAT
After SMT solving in domain Real declared 4/12 variables, and 2 constraints, problems are : Problem set: 3 solved, 0 unsolved in 116 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/5 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 168ms problems are : Problem set: 3 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Successfully simplified 3 atomic propositions for a total of 15 simplifications.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA GlobalResAllocation-COL-05-LTLCardinality-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2026-05-25 10:35:05] [INFO ] Flatten gal took : 12 ms
[2026-05-25 10:35:05] [INFO ] Flatten gal took : 2 ms
Symmetric sort wr.t. initial and guards and successors and join/free detected :Res
Symmetric sort wr.t. initial detected :Res
Symmetric sort wr.t. initial and guards detected :Res
Applying symmetric unfolding of full symmetric sort :Res domain size was 10
Transition release1 forces synchronizations/join behavior on parameter p of sort Proc
[2026-05-25 10:35:05] [INFO ] Unfolded HLPN to a Petri net with 21 places and 35 transitions 145 arcs in 10 ms.
[2026-05-25 10:35:05] [INFO ] Unfolded 13 HLPN properties in 0 ms.
Support contains 21 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 35/35 transitions.
Reduce isomorphic (modulo) transitions removed 10 transitions.
Iterating post reduction 0 with 10 rules applied. Total rules applied 10 place count 21 transition count 30
Applied a total of 10 rules in 8 ms. Remains 21 /21 variables (removed 0) and now considering 30/35 (removed 5) transitions.
Running 10 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6189293862080980223.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10686990505763574469.kers'
[2026-05-25 10:35:05] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6189293862080980223.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10686990505763574469.kers]
Culling duplicate invariants (modulo rational): removing 5 columns.
Culled 5 columns in 0 ms.
// Phase 1: matrix 30 rows 16 cols 100 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-25 10:35:05] [INFO ] Computed 11 invariants in 0 ms
Computed 11 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-10686990505763574469.kers
Total runtime 0 ms.
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 6/21 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/21 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 30/51 variables, 21/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/51 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 0/51 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 51/51 variables, and 32 constraints, problems are : Problem set: 0 solved, 10 unsolved in 228 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 21/21 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 6/21 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/21 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 30/51 variables, 21/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/51 variables, 10/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/51 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (OVERLAPS) 0/51 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 51/51 variables, and 42 constraints, problems are : Problem set: 0 solved, 10 unsolved in 201 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 21/21 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 438ms problems are : Problem set: 0 solved, 10 unsolved
Search for dead transitions found 0 dead transitions in 439ms
[2026-05-25 10:35:05] [INFO ] Invariant cache hit.
[2026-05-25 10:35:05] [INFO ] Implicit Places using invariants in 22 ms returned []
[2026-05-25 10:35:05] [INFO ] Invariant cache hit.
[2026-05-25 10:35:05] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 60 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LTL mode, iteration 1 : 21/21 places, 30/35 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 526 ms. Remains : 21/21 places, 30/35 transitions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:05] [INFO ] Invariant cache hit.
[2026-05-25 10:35:05] [INFO ] Implicit Places using invariants in 19 ms returned []
[2026-05-25 10:35:05] [INFO ] Invariant cache hit.
[2026-05-25 10:35:05] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 48 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 49 ms. Remains : 21/21 places, 30/30 transitions.
Support contains 21 out of 21 places after structural reductions.
[2026-05-25 10:35:05] [INFO ] Flatten gal took : 4 ms
[2026-05-25 10:35:05] [INFO ] Flatten gal took : 5 ms
[2026-05-25 10:35:05] [INFO ] Input system was already deterministic with 30 transitions.
RANDOM walk for 40003 steps (8 resets) in 401 ms. (99 steps per ms) remains 2/23 properties
BEST_FIRST walk for 40003 steps (8 resets) in 94 ms. (421 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 153 ms. (259 steps per ms) remains 2/2 properties
[2026-05-25 10:35:06] [INFO ] Invariant cache hit.
Problem AtomicPropp18 is UNSAT
Problem AtomicPropp9 is UNSAT
After SMT solving in domain Real declared 15/51 variables, and 5 constraints, problems are : Problem set: 2 solved, 0 unsolved in 17 ms.
Refiners :[Positive P Invariants (semi-flows): 0/6 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 0/21 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 23ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-01 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 2 atomic propositions for a total of 12 simplifications.
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0)||(X(G(p1)) U ((p2 U G(p0)) U p3))))'
Support contains 15 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:06] [INFO ] Invariant cache hit.
[2026-05-25 10:35:06] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-25 10:35:06] [INFO ] Invariant cache hit.
[2026-05-25 10:35:06] [INFO ] Implicit Places using invariants and state equation in 33 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 66 ms. Remains : 21/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0)||(X(G(p1)) U ((p2 U G(p0)) U p3))))'
Stuttering acceptance computed with spot in 691 ms :[(AND (NOT p0) (NOT p3)), (NOT p1), (NOT p3), (AND (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p3)), (AND (NOT p1) (NOT p0)), (AND (NOT p0) (NOT p3) p2 (NOT p1)), true, (NOT p0), (NOT p0), (NOT p3), (AND (NOT p0) p2 (NOT p3) p1)]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-00
Entered a terminal (fully accepting) state of product in 7 steps with 3 reset in 4 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-00 finished in 862 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G((p1 U p2))))))'
Support contains 16 out of 21 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Applied a total of 0 rules in 3 ms. Remains 21 /21 variables (removed 0) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:07] [INFO ] Invariant cache hit.
[2026-05-25 10:35:07] [INFO ] Implicit Places using invariants in 19 ms returned []
[2026-05-25 10:35:07] [INFO ] Invariant cache hit.
[2026-05-25 10:35:07] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 60 ms to find 0 implicit places.
[2026-05-25 10:35:07] [INFO ] Redundant transitions in 0 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 68 ms. Remains : 21/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G((p1 U p2))))))'
Stuttering acceptance computed with spot in 186 ms :[(OR (NOT p2) (NOT p0)), (NOT p0), (NOT p2), (NOT p2)]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-02
Product exploration explored 100000 steps with 18954 reset in 279 ms.
Stack based approach found an accepted trace after 485 steps with 85 reset with depth 29 and stack size 29 in 2 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-02 FALSE TECHNIQUES STACK_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-02 finished in 567 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((p0||X(X(X(!p1)))))))'
Support contains 16 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 16 transition count 30
Applied a total of 5 rules in 4 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Running 10 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18183760039116643584.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14113886293086177638.kers'
[2026-05-25 10:35:08] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18183760039116643584.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14113886293086177638.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 30 rows 16 cols 100 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-25 10:35:08] [INFO ] Computed 6 invariants in 0 ms
Computed 6 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-14113886293086177638.kers
Total runtime 0 ms.
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 6/16 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 30/46 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 0/46 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 46/46 variables, and 22 constraints, problems are : Problem set: 0 solved, 10 unsolved in 115 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 6/16 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 30/46 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 10/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/46 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 0/46 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 46/46 variables, and 32 constraints, problems are : Problem set: 0 solved, 10 unsolved in 116 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 237ms problems are : Problem set: 0 solved, 10 unsolved
Search for dead transitions found 0 dead transitions in 237ms
[2026-05-25 10:35:08] [INFO ] Invariant cache hit.
[2026-05-25 10:35:08] [INFO ] Implicit Places using invariants in 16 ms returned []
[2026-05-25 10:35:08] [INFO ] Invariant cache hit.
[2026-05-25 10:35:08] [INFO ] Implicit Places using invariants and state equation in 23 ms returned []
Implicit Place search using SMT with State Equation took 41 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LTL mode, iteration 1 : 16/21 places, 30/30 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 283 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((p0||X(X(X(p1)))))))'
Stuttering acceptance computed with spot in 246 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (NOT p1), (NOT p1), (NOT p1), true]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-03
Entered a terminal (fully accepting) state of product in 4 steps with 0 reset in 0 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-03 finished in 573 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 5 out of 21 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Applied a total of 0 rules in 4 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:08] [INFO ] Invariant cache hit.
[2026-05-25 10:35:08] [INFO ] Implicit Places using invariants in 22 ms returned []
[2026-05-25 10:35:08] [INFO ] Invariant cache hit.
[2026-05-25 10:35:08] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 56 ms to find 0 implicit places.
[2026-05-25 10:35:08] [INFO ] Redundant transitions in 0 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 65 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Stuttering acceptance computed with spot in 43 ms :[(NOT p0)]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-04
Product exploration explored 100000 steps with 44136 reset in 117 ms.
Stack based approach found an accepted trace after 10228 steps with 4537 reset with depth 3 and stack size 3 in 20 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-04 FALSE TECHNIQUES STACK_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-04 finished in 276 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((p0 U X(p1))&&F((p0&&(p2 U X(p3)))))))'
Support contains 11 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 16 transition count 30
Applied a total of 5 rules in 2 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:08] [INFO ] Invariant cache hit.
[2026-05-25 10:35:08] [INFO ] Implicit Places using invariants in 25 ms returned []
[2026-05-25 10:35:08] [INFO ] Invariant cache hit.
[2026-05-25 10:35:08] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 57 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LTL mode, iteration 1 : 16/21 places, 30/30 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 59 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((p0 U X(p1))&&F((p0&&(p2 U X(p3)))))))'
Stuttering acceptance computed with spot in 474 ms :[(OR (NOT p0) (NOT p1) (NOT p3)), (OR (NOT p1) (NOT p0) (NOT p3)), (NOT p1), (OR (NOT p0) (NOT p3)), (NOT p1), (NOT p3), (NOT p3), true]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-05
Entered a terminal (fully accepting) state of product in 5 steps with 1 reset in 1 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-05 finished in 599 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((p0||F(!p1)||X((X(G((G(p2) U p3))) U (p0&&X(G((G(p2) U p3)))))))))'
Support contains 16 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 16 transition count 30
Applied a total of 5 rules in 2 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:09] [INFO ] Invariant cache hit.
[2026-05-25 10:35:09] [INFO ] Implicit Places using invariants in 21 ms returned []
[2026-05-25 10:35:09] [INFO ] Invariant cache hit.
[2026-05-25 10:35:09] [INFO ] Implicit Places using invariants and state equation in 24 ms returned []
Implicit Place search using SMT with State Equation took 47 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LTL mode, iteration 1 : 16/21 places, 30/30 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 49 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((p0||F(p1)||X((X(G((G(p2) U p3))) U (p0&&X(G((G(p2) U p3)))))))))'
Stuttering acceptance computed with spot in 278 ms :[(AND (NOT p0) (NOT p1)), (OR (AND (NOT p1) (NOT p3)) (AND (NOT p0) (NOT p1))), (AND (NOT p1) (NOT p3)), (NOT p1), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p3))]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-07
Product exploration explored 100000 steps with 651 reset in 205 ms.
Stack based approach found an accepted trace after 82 steps with 0 reset with depth 83 and stack size 79 in 1 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-07 FALSE TECHNIQUES STACK_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-07 finished in 577 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 10 out of 21 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Applied a total of 0 rules in 3 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:10] [INFO ] Invariant cache hit.
[2026-05-25 10:35:10] [INFO ] Implicit Places using invariants in 22 ms returned []
[2026-05-25 10:35:10] [INFO ] Invariant cache hit.
[2026-05-25 10:35:10] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
[2026-05-25 10:35:10] [INFO ] Redundant transitions in 0 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 63 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Stuttering acceptance computed with spot in 61 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-08
Product exploration explored 100000 steps with 1572 reset in 156 ms.
Stack based approach found an accepted trace after 64 steps with 1 reset with depth 28 and stack size 28 in 1 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-08 FALSE TECHNIQUES STACK_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-08 finished in 306 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(X(p0))&&F(!(X(p1) U (p0 U p2))))))'
Support contains 16 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 30/30 (removed 0) transitions.
Running 10 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17987121924820056771.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10189780052919516621.kers'
[2026-05-25 10:35:10] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17987121924820056771.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10189780052919516621.kers]
Culling duplicate invariants (modulo rational): removing 5 columns.
Culled 5 columns in 0 ms.
// Phase 1: matrix 30 rows 16 cols 100 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-25 10:35:10] [INFO ] Computed 11 invariants in 0 ms
Computed 11 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-10189780052919516621.kers
Total runtime 1 ms.
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 6/21 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/21 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 30/51 variables, 21/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/51 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 0/51 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 51/51 variables, and 32 constraints, problems are : Problem set: 0 solved, 10 unsolved in 139 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 21/21 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 6/21 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/21 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 30/51 variables, 21/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/51 variables, 10/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/51 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (OVERLAPS) 0/51 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 51/51 variables, and 42 constraints, problems are : Problem set: 0 solved, 10 unsolved in 157 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 21/21 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 307ms problems are : Problem set: 0 solved, 10 unsolved
Search for dead transitions found 0 dead transitions in 307ms
[2026-05-25 10:35:10] [INFO ] Invariant cache hit.
[2026-05-25 10:35:10] [INFO ] Implicit Places using invariants in 19 ms returned []
[2026-05-25 10:35:10] [INFO ] Invariant cache hit.
[2026-05-25 10:35:10] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 51 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 359 ms. Remains : 21/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(X(p0))&&F(!(X(p1) U (p0 U p2))))))'
Stuttering acceptance computed with spot in 355 ms :[(OR (NOT p0) p2), (OR (NOT p0) p2), (NOT p0), p2, (AND p1 p2), p2, (NOT p0), true]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-09
Entered a terminal (fully accepting) state of product in 961 steps with 111 reset in 6 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-09 finished in 765 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0&&G(p1))))'
Support contains 10 out of 21 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Applied a total of 0 rules in 3 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Running 10 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7724819589743637617.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1651459453268001773.kers'
[2026-05-25 10:35:11] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7724819589743637617.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1651459453268001773.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 30 rows 16 cols 100 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-25 10:35:11] [INFO ] Computed 6 invariants in 0 ms
Computed 6 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-1651459453268001773.kers
Total runtime 1 ms.
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 6/16 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 30/46 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 0/46 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 46/46 variables, and 22 constraints, problems are : Problem set: 0 solved, 10 unsolved in 124 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 6/16 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 30/46 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 10/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/46 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 0/46 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 46/46 variables, and 32 constraints, problems are : Problem set: 0 solved, 10 unsolved in 113 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 246ms problems are : Problem set: 0 solved, 10 unsolved
Search for dead transitions found 0 dead transitions in 247ms
[2026-05-25 10:35:11] [INFO ] Invariant cache hit.
[2026-05-25 10:35:11] [INFO ] Implicit Places using invariants in 28 ms returned []
[2026-05-25 10:35:11] [INFO ] Invariant cache hit.
[2026-05-25 10:35:11] [INFO ] Implicit Places using invariants and state equation in 26 ms returned []
Implicit Place search using SMT with State Equation took 56 ms to find 0 implicit places.
[2026-05-25 10:35:11] [INFO ] Redundant transitions in 0 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 311 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0&&G(p1))))'
Stuttering acceptance computed with spot in 94 ms :[(OR (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-10
Product exploration explored 100000 steps with 0 reset in 149 ms.
Stack based approach found an accepted trace after 68 steps with 0 reset with depth 69 and stack size 69 in 0 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-10 FALSE TECHNIQUES STACK_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-10 finished in 586 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((F(p0) U X(p1))||F((G(F(p2))||G(p1))))))'
Support contains 15 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 30/30 (removed 0) transitions.
Running 10 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14661696399823807927.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12995936484638163049.kers'
[2026-05-25 10:35:11] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14661696399823807927.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12995936484638163049.kers]
Culling duplicate invariants (modulo rational): removing 5 columns.
Culled 5 columns in 0 ms.
// Phase 1: matrix 30 rows 16 cols 100 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-25 10:35:11] [INFO ] Computed 11 invariants in 0 ms
Computed 11 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-12995936484638163049.kers
Total runtime 1 ms.
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 6/21 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/21 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 30/51 variables, 21/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/51 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 0/51 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 51/51 variables, and 32 constraints, problems are : Problem set: 0 solved, 10 unsolved in 155 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 21/21 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 6/21 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/21 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (OVERLAPS) 30/51 variables, 21/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/51 variables, 10/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/51 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (OVERLAPS) 0/51 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 51/51 variables, and 42 constraints, problems are : Problem set: 0 solved, 10 unsolved in 153 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 21/21 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 318ms problems are : Problem set: 0 solved, 10 unsolved
Search for dead transitions found 0 dead transitions in 319ms
[2026-05-25 10:35:12] [INFO ] Invariant cache hit.
[2026-05-25 10:35:12] [INFO ] Implicit Places using invariants in 26 ms returned []
[2026-05-25 10:35:12] [INFO ] Invariant cache hit.
[2026-05-25 10:35:12] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 377 ms. Remains : 21/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((F(p0) U X(p1))||F((G(F(p2))||G(p1))))))'
Stuttering acceptance computed with spot in 311 ms :[(AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-11
Product exploration explored 100000 steps with 32768 reset in 165 ms.
Product exploration explored 100000 steps with 32750 reset in 211 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge based reduction with 1 factoid took 355 ms. Reduced automaton from 7 states, 15 edges and 3 AP (stutter sensitive) to 7 states, 15 edges and 3 AP (stutter sensitive).
RANDOM walk for 286 steps (0 resets) in 6 ms. (40 steps per ms) remains 0/7 properties
Knowledge based reduction with 1 factoid took 401 ms. Reduced automaton from 7 states, 15 edges and 3 AP (stutter sensitive) to 7 states, 15 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 308 ms :[(AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2))]
[2026-05-25 10:35:13] [INFO ] Invariant cache hit.
[2026-05-25 10:35:13] [INFO ] [Real]Absence check using 6 positive place invariants in 1 ms returned sat
[2026-05-25 10:35:13] [INFO ] [Real]Absence check using 6 positive and 5 generalized place invariants in 1 ms returned unsat
Proved EG (AND (NOT p1) (NOT p2)) asserting that LTL formula F !(AND (NOT p1) (NOT p2)) is false.
Negative knowledge disproves property using: (F (NOT (AND (NOT p1) (NOT p2))))
Knowledge-based reduction took 1134 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-11 FALSE TECHNIQUES NEGATIVE_KNOWLEDGE
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-11 finished in 2245 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((X(G(p0))||(F(!p1)&&X(X(X(p1)))))))'
Support contains 16 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 16 transition count 30
Applied a total of 5 rules in 0 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Running 10 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-11031361505567371584.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7527090694128854255.kers'
[2026-05-25 10:35:14] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11031361505567371584.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7527090694128854255.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 30 rows 16 cols 100 entries
Finished phase 1 with 10 SingleSign rule and 0 generalized
[2026-05-25 10:35:14] [INFO ] Computed 6 invariants in 0 ms
Computed 6 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-7527090694128854255.kers
Total runtime 0 ms.
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 6/16 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 30/46 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 0/46 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 46/46 variables, and 22 constraints, problems are : Problem set: 0 solved, 10 unsolved in 116 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 6/16 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 30/46 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/46 variables, 10/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/46 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 0/46 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 46/46 variables, and 32 constraints, problems are : Problem set: 0 solved, 10 unsolved in 113 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 16/16 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 237ms problems are : Problem set: 0 solved, 10 unsolved
Search for dead transitions found 0 dead transitions in 237ms
[2026-05-25 10:35:14] [INFO ] Invariant cache hit.
[2026-05-25 10:35:14] [INFO ] Implicit Places using invariants in 18 ms returned []
[2026-05-25 10:35:14] [INFO ] Invariant cache hit.
[2026-05-25 10:35:14] [INFO ] Implicit Places using invariants and state equation in 24 ms returned []
Implicit Place search using SMT with State Equation took 45 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LTL mode, iteration 1 : 16/21 places, 30/30 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 283 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((X(G(p0))||(F(p1)&&X(X(X(!p1)))))))'
Stuttering acceptance computed with spot in 404 ms :[(NOT p0), (AND (NOT p1) (NOT p0)), (AND p1 (NOT p0)), (NOT p1), p1, (AND p1 (NOT p0)), p1, true, (AND p1 (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-12
Entered a terminal (fully accepting) state of product in 19 steps with 2 reset in 0 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-12 finished in 734 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((!p0&&X(G((p1&&X(p2))))))))'
Support contains 16 out of 21 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 21/21 places, 30/30 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 16 transition count 30
Applied a total of 5 rules in 1 ms. Remains 16 /21 variables (removed 5) and now considering 30/30 (removed 0) transitions.
Skipped dead transition search.
[2026-05-25 10:35:14] [INFO ] Invariant cache hit.
[2026-05-25 10:35:14] [INFO ] Implicit Places using invariants in 20 ms returned []
[2026-05-25 10:35:14] [INFO ] Invariant cache hit.
[2026-05-25 10:35:14] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 54 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LTL mode, iteration 1 : 16/21 places, 30/30 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 55 ms. Remains : 16/21 places, 30/30 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((p0&&X(G((p1&&X(p2))))))))'
Stuttering acceptance computed with spot in 209 ms :[true, (OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2))]
Running random walk in product with property : GlobalResAllocation-COL-05-LTLCardinality-14
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA GlobalResAllocation-COL-05-LTLCardinality-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property GlobalResAllocation-COL-05-LTLCardinality-14 finished in 305 ms.
All properties solved by simple procedures.
Total runtime 11124 ms.

BK_STOP 1779705315078

--------------------
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
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLCardinality -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="GlobalResAllocation-COL-05"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
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 itstools"
echo " Input is GlobalResAllocation-COL-05, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r146-tall-177961074000179"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/GlobalResAllocation-COL-05.tgz
mv GlobalResAllocation-COL-05 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;