About the Execution of LoLa+red for Philosophers-COL-000500
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 12431.628 | 620620.00 | 677182.00 | 2151.80 | FFFFTFFFFFFFFFTT | 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.r295-tall-167873947500132.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 Philosophers-COL-000500, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r295-tall-167873947500132
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 540K
-rw-r--r-- 1 mcc users 9.1K Feb 25 14:00 CTLCardinality.txt
-rw-r--r-- 1 mcc users 100K Feb 25 14:00 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Feb 25 13:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K Feb 25 13:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Feb 25 16:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 25 14:59 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 136K Feb 25 14:59 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K Feb 25 14:24 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K Feb 25 14:24 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:33 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 31K Mar 5 18:23 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 Philosophers-COL-000500-LTLFireability-00
FORMULA_NAME Philosophers-COL-000500-LTLFireability-01
FORMULA_NAME Philosophers-COL-000500-LTLFireability-02
FORMULA_NAME Philosophers-COL-000500-LTLFireability-03
FORMULA_NAME Philosophers-COL-000500-LTLFireability-04
FORMULA_NAME Philosophers-COL-000500-LTLFireability-05
FORMULA_NAME Philosophers-COL-000500-LTLFireability-06
FORMULA_NAME Philosophers-COL-000500-LTLFireability-07
FORMULA_NAME Philosophers-COL-000500-LTLFireability-08
FORMULA_NAME Philosophers-COL-000500-LTLFireability-09
FORMULA_NAME Philosophers-COL-000500-LTLFireability-10
FORMULA_NAME Philosophers-COL-000500-LTLFireability-11
FORMULA_NAME Philosophers-COL-000500-LTLFireability-12
FORMULA_NAME Philosophers-COL-000500-LTLFireability-13
FORMULA_NAME Philosophers-COL-000500-LTLFireability-14
FORMULA_NAME Philosophers-COL-000500-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1678785200949
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=Philosophers-COL-000500
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-14 09:13:22] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-14 09:13:22] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-14 09:13:22] [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.
[2023-03-14 09:13:22] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-14 09:13:23] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 604 ms
[2023-03-14 09:13:23] [INFO ] Imported 5 HL places and 5 HL transitions for a total of 2500 PT places and 2500.0 transition bindings in 17 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 8 ms.
Working with output stream class java.io.PrintStream
[2023-03-14 09:13:23] [INFO ] Built PT skeleton of HLPN with 5 places and 5 transitions 15 arcs in 4 ms.
[2023-03-14 09:13:23] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Initial state reduction rules removed 3 formulas.
FORMULA Philosophers-COL-000500-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Philosophers-COL-000500-LTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Philosophers-COL-000500-LTLFireability-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
Remains 3 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
Incomplete random walk after 10039 steps, including 19 resets, run finished after 21 ms. (steps per millisecond=478 ) properties (out of 3) seen :2
Finished Best-First random walk after 7 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=7 )
[2023-03-14 09:13:23] [INFO ] Flatten gal took : 12 ms
[2023-03-14 09:13:23] [INFO ] Flatten gal took : 2 ms
Arc [1:1*[(MOD (ADD (MOD (MINUS $x 1) 500) 500) 500)]] contains successor/predecessor on variables of sort Philo
[2023-03-14 09:13:23] [INFO ] Unfolded HLPN to a Petri net with 2500 places and 2500 transitions 8000 arcs in 47 ms.
[2023-03-14 09:13:23] [INFO ] Unfolded 13 HLPN properties in 4 ms.
Support contains 2500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 29 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
// Phase 1: matrix 2500 rows 2500 cols
[2023-03-14 09:13:24] [INFO ] Computed 1000 place invariants in 37 ms
[2023-03-14 09:13:24] [INFO ] Implicit Places using invariants in 587 ms returned []
[2023-03-14 09:13:24] [INFO ] Invariant cache hit.
[2023-03-14 09:13:26] [INFO ] Implicit Places using invariants and state equation in 1539 ms returned []
Implicit Place search using SMT with State Equation took 2151 ms to find 0 implicit places.
[2023-03-14 09:13:26] [INFO ] Invariant cache hit.
[2023-03-14 09:13:28] [INFO ] Dead Transitions using invariants and state equation in 2601 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4799 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Support contains 2500 out of 2500 places after structural reductions.
[2023-03-14 09:13:29] [INFO ] Flatten gal took : 244 ms
[2023-03-14 09:13:30] [INFO ] Flatten gal took : 231 ms
[2023-03-14 09:13:31] [INFO ] Input system was already deterministic with 2500 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 773 ms. (steps per millisecond=12 ) properties (out of 11) seen :6
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 936 ms. (steps per millisecond=10 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 913 ms. (steps per millisecond=10 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 937 ms. (steps per millisecond=10 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 1094 ms. (steps per millisecond=9 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 1082 ms. (steps per millisecond=9 ) properties (out of 5) seen :0
Running SMT prover for 5 properties.
[2023-03-14 09:13:37] [INFO ] Invariant cache hit.
[2023-03-14 09:13:40] [INFO ] [Real]Absence check using 1000 positive place invariants in 204 ms returned sat
[2023-03-14 09:13:40] [INFO ] After 1146ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:5
[2023-03-14 09:13:41] [INFO ] [Nat]Absence check using 1000 positive place invariants in 201 ms returned sat
[2023-03-14 09:13:45] [INFO ] After 2963ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :5
[2023-03-14 09:13:47] [INFO ] After 4925ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :5
Attempting to minimize the solution found.
Minimization took 1645 ms.
[2023-03-14 09:13:49] [INFO ] After 8265ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :5
Fused 5 Parikh solutions to 1 different solutions.
Finished Parikh walk after 500 steps, including 0 resets, run visited all 5 properties in 66 ms. (steps per millisecond=7 )
Parikh walk visited 5 properties in 69 ms.
FORMULA Philosophers-COL-000500-LTLFireability-06 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((!p0 U (X(p1) U (p1&&G(F(p2))))))'
Support contains 2000 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 51 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:13:49] [INFO ] Invariant cache hit.
[2023-03-14 09:13:50] [INFO ] Implicit Places using invariants in 620 ms returned []
[2023-03-14 09:13:50] [INFO ] Invariant cache hit.
[2023-03-14 09:13:52] [INFO ] Implicit Places using invariants and state equation in 1835 ms returned []
Implicit Place search using SMT with State Equation took 2456 ms to find 0 implicit places.
[2023-03-14 09:13:52] [INFO ] Invariant cache hit.
[2023-03-14 09:13:55] [INFO ] Dead Transitions using invariants and state equation in 2953 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5466 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 307 ms :[(OR (NOT p1) (NOT p2)), (OR (NOT p1) (NOT p2)), (NOT p2), (NOT p2), true]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 1}, { cond=(AND p1 (NOT p2)), acceptance={} source=0 dest: 2}, { cond=p1, acceptance={} source=0 dest: 3}], [{ cond=(AND p1 (NOT p2)), acceptance={} source=1 dest: 2}, { cond=p1, acceptance={} source=1 dest: 3}, { cond=(NOT p1), acceptance={} source=1 dest: 4}], [{ cond=(NOT p2), acceptance={0} source=2 dest: 2}], [{ cond=(NOT p2), acceptance={} source=3 dest: 2}, { cond=true, acceptance={} source=3 dest: 3}], [{ cond=true, acceptance={0} source=4 dest: 4}]], initial=0, aps=[p1:(OR (AND (GEQ s848 1) (GEQ s1348 1)) (AND (GEQ s552 1) (GEQ s1052 1)) (AND (GEQ s557 1) (GEQ s1057 1)) (AND (GEQ s853 1) (GEQ s1353 1)) (AND (GEQ s838 ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], 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 4 ms.
FORMULA Philosophers-COL-000500-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-00 finished in 5894 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(F(p0))))'
Support contains 1000 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 205 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:13:55] [INFO ] Invariant cache hit.
[2023-03-14 09:13:56] [INFO ] Implicit Places using invariants in 1010 ms returned []
[2023-03-14 09:13:56] [INFO ] Invariant cache hit.
[2023-03-14 09:13:59] [INFO ] Implicit Places using invariants and state equation in 2192 ms returned []
Implicit Place search using SMT with State Equation took 3207 ms to find 0 implicit places.
[2023-03-14 09:13:59] [INFO ] Invariant cache hit.
[2023-03-14 09:14:01] [INFO ] Dead Transitions using invariants and state equation in 2760 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 6175 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 131 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={} source=2 dest: 1}]], initial=2, aps=[p0:(AND (OR (LT s603 1) (LT s1604 1)) (OR (LT s598 1) (LT s1599 1)) (OR (LT s894 1) (LT s1895 1)) (OR (LT s899 1) (LT s1900 1)) (OR (LT s588 1) (LT s1589 ...], 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][false, false, false]]
Product exploration explored 100000 steps with 8 reset in 2624 ms.
Stack based approach found an accepted trace after 1370 steps with 0 reset with depth 1371 and stack size 1371 in 100 ms.
FORMULA Philosophers-COL-000500-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-01 finished in 9072 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((G(F(!p0))||(F(!p0)&&X(p0))))))'
Support contains 1000 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 166 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:14:04] [INFO ] Invariant cache hit.
[2023-03-14 09:14:05] [INFO ] Implicit Places using invariants in 924 ms returned []
[2023-03-14 09:14:05] [INFO ] Invariant cache hit.
[2023-03-14 09:14:08] [INFO ] Implicit Places using invariants and state equation in 2224 ms returned []
Implicit Place search using SMT with State Equation took 3151 ms to find 0 implicit places.
[2023-03-14 09:14:08] [INFO ] Invariant cache hit.
[2023-03-14 09:14:10] [INFO ] Dead Transitions using invariants and state equation in 2708 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 6028 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 67 ms :[p0, p0]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=p0, acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(OR (AND (GEQ s261 1) (GEQ s761 1)) (AND (GEQ s256 1) (GEQ s756 1)) (AND (GEQ s246 1) (GEQ s746 1)) (AND (GEQ s266 1) (GEQ s766 1)) (AND (GEQ s276 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]]
Product exploration explored 100000 steps with 8 reset in 2647 ms.
Stack based approach found an accepted trace after 3373 steps with 0 reset with depth 3374 and stack size 3374 in 144 ms.
FORMULA Philosophers-COL-000500-LTLFireability-02 FALSE TECHNIQUES STACK_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-02 finished in 8936 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((F(p2)||p1))||p0)))'
Support contains 2000 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 20 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:14:13] [INFO ] Invariant cache hit.
[2023-03-14 09:14:14] [INFO ] Implicit Places using invariants in 436 ms returned []
[2023-03-14 09:14:14] [INFO ] Invariant cache hit.
[2023-03-14 09:14:15] [INFO ] Implicit Places using invariants and state equation in 1385 ms returned []
Implicit Place search using SMT with State Equation took 1825 ms to find 0 implicit places.
[2023-03-14 09:14:15] [INFO ] Invariant cache hit.
[2023-03-14 09:14:18] [INFO ] Dead Transitions using invariants and state equation in 2572 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4426 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 162 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 3}], [{ cond=(NOT p2), acceptance={0} source=2 dest: 2}], [{ cond=(AND (NOT p1) (NOT p2)), acceptance={} source=3 dest: 2}]], initial=0, aps=[p0:(OR (AND (GEQ s848 1) (GEQ s1348 1)) (AND (GEQ s552 1) (GEQ s1052 1)) (AND (GEQ s557 1) (GEQ s1057 1)) (AND (GEQ s853 1) (GEQ s1353 1)) (AND (GEQ s838 ...], 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 timeout after 84390 steps with 33749 reset in 10001 ms.
Product exploration timeout after 81890 steps with 32789 reset in 10003 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p0) p2 (NOT p1))]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p2)))))]
Knowledge based reduction with 1 factoid took 181 ms. Reduced automaton from 4 states, 4 edges and 3 AP (stutter sensitive) to 4 states, 4 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 133 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Incomplete random walk after 10000 steps, including 2 resets, run finished after 381 ms. (steps per millisecond=26 ) properties (out of 3) seen :2
Finished Best-First random walk after 1001 steps, including 0 resets, run visited all 1 properties in 318 ms. (steps per millisecond=3 )
Knowledge obtained : [(AND (NOT p0) p2 (NOT p1))]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p2))))), (F p0), (F (AND (NOT p1) (NOT p2))), (F (NOT p2))]
Knowledge based reduction with 1 factoid took 196 ms. Reduced automaton from 4 states, 4 edges and 3 AP (stutter sensitive) to 4 states, 4 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 149 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Stuttering acceptance computed with spot in 145 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Support contains 2000 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 13 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:14:53] [INFO ] Invariant cache hit.
[2023-03-14 09:14:53] [INFO ] Implicit Places using invariants in 438 ms returned []
[2023-03-14 09:14:53] [INFO ] Invariant cache hit.
[2023-03-14 09:14:54] [INFO ] Implicit Places using invariants and state equation in 1444 ms returned []
Implicit Place search using SMT with State Equation took 1886 ms to find 0 implicit places.
[2023-03-14 09:14:54] [INFO ] Invariant cache hit.
[2023-03-14 09:14:57] [INFO ] Dead Transitions using invariants and state equation in 2850 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4753 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p0) p2 (NOT p1))]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p2)))))]
Knowledge based reduction with 1 factoid took 109 ms. Reduced automaton from 4 states, 4 edges and 3 AP (stutter sensitive) to 4 states, 4 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 162 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Finished random walk after 1 steps, including 0 resets, run visited all 3 properties in 2 ms. (steps per millisecond=0 )
Knowledge obtained : [(AND (NOT p0) p2 (NOT p1))]
False Knowledge obtained : [(X (NOT p0)), (X p0), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p2))))), (F p0), (F (AND (NOT p1) (NOT p2))), (F (NOT p2))]
Knowledge based reduction with 1 factoid took 230 ms. Reduced automaton from 4 states, 4 edges and 3 AP (stutter sensitive) to 4 states, 4 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 137 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Stuttering acceptance computed with spot in 166 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Stuttering acceptance computed with spot in 149 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Product exploration timeout after 82580 steps with 33042 reset in 10001 ms.
Product exploration timeout after 82190 steps with 32906 reset in 10001 ms.
Applying partial POR strategy [false, false, true, true]
Stuttering acceptance computed with spot in 152 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (AND (NOT p2) (NOT p1))]
Support contains 2000 out of 2500 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 78 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:15:32] [INFO ] Redundant transitions in 146 ms returned []
[2023-03-14 09:15:32] [INFO ] Invariant cache hit.
[2023-03-14 09:15:34] [INFO ] Dead Transitions using invariants and state equation in 2725 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 2970 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Support contains 2000 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 13 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:15:34] [INFO ] Invariant cache hit.
[2023-03-14 09:15:35] [INFO ] Implicit Places using invariants in 434 ms returned []
[2023-03-14 09:15:35] [INFO ] Invariant cache hit.
[2023-03-14 09:15:36] [INFO ] Implicit Places using invariants and state equation in 1482 ms returned []
Implicit Place search using SMT with State Equation took 1923 ms to find 0 implicit places.
[2023-03-14 09:15:36] [INFO ] Invariant cache hit.
[2023-03-14 09:15:39] [INFO ] Dead Transitions using invariants and state equation in 3026 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4967 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Treatment of property Philosophers-COL-000500-LTLFireability-04 finished in 86517 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((F(G(p0))&&(G(p2)||p1))))'
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 64 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:15:40] [INFO ] Invariant cache hit.
[2023-03-14 09:15:41] [INFO ] Implicit Places using invariants in 850 ms returned []
[2023-03-14 09:15:41] [INFO ] Invariant cache hit.
[2023-03-14 09:15:43] [INFO ] Implicit Places using invariants and state equation in 2229 ms returned []
Implicit Place search using SMT with State Equation took 3080 ms to find 0 implicit places.
[2023-03-14 09:15:43] [INFO ] Redundant transitions in 120 ms returned []
[2023-03-14 09:15:43] [INFO ] Invariant cache hit.
[2023-03-14 09:15:46] [INFO ] Dead Transitions using invariants and state equation in 2733 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 6012 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 102 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(AND (NOT p1) p2), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p1) (NOT p2)), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p1:(OR (AND (GEQ s171 1) (GEQ s670 1)) (AND (GEQ s467 1) (GEQ s966 1)) (AND (GEQ s181 1) (GEQ s680 1)) (AND (GEQ s477 1) (GEQ s976 1)) (AND (GEQ s161 1) (...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Product exploration explored 100000 steps with 0 reset in 2999 ms.
Stack based approach found an accepted trace after 6568 steps with 0 reset with depth 6569 and stack size 6569 in 235 ms.
FORMULA Philosophers-COL-000500-LTLFireability-05 FALSE TECHNIQUES STACK_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-05 finished in 9408 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(X(G((!p1&&X(p0))))))))'
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 22 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:15:49] [INFO ] Invariant cache hit.
[2023-03-14 09:15:50] [INFO ] Implicit Places using invariants in 663 ms returned []
[2023-03-14 09:15:50] [INFO ] Invariant cache hit.
[2023-03-14 09:15:52] [INFO ] Implicit Places using invariants and state equation in 1816 ms returned []
Implicit Place search using SMT with State Equation took 2480 ms to find 0 implicit places.
[2023-03-14 09:15:52] [INFO ] Invariant cache hit.
[2023-03-14 09:15:54] [INFO ] Dead Transitions using invariants and state equation in 2690 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5198 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 180 ms :[true, (AND p1 p0), (OR (NOT p0) p1), (OR (NOT p0) p1), (OR (NOT p0) p1)]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={} source=1 dest: 1}, { cond=p0, acceptance={} source=1 dest: 2}], [{ cond=true, acceptance={} source=2 dest: 3}], [{ cond=p1, acceptance={} source=3 dest: 0}, { cond=(NOT p1), acceptance={} source=3 dest: 4}], [{ cond=(OR (NOT p0) p1), acceptance={} source=4 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={} source=4 dest: 4}]], initial=1, aps=[p0:(OR (AND (GEQ s261 1) (GEQ s761 1)) (AND (GEQ s256 1) (GEQ s756 1)) (AND (GEQ s246 1) (GEQ s746 1)) (AND (GEQ s266 1) (GEQ s766 1)) (AND (GEQ s276 1) (...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, 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 14617 steps with 0 reset in 501 ms.
FORMULA Philosophers-COL-000500-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-08 finished in 5928 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(p0))&&F((p1||G(!p0))))))'
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 54 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:15:55] [INFO ] Invariant cache hit.
[2023-03-14 09:15:56] [INFO ] Implicit Places using invariants in 863 ms returned []
[2023-03-14 09:15:56] [INFO ] Invariant cache hit.
[2023-03-14 09:15:58] [INFO ] Implicit Places using invariants and state equation in 2235 ms returned []
Implicit Place search using SMT with State Equation took 3102 ms to find 0 implicit places.
[2023-03-14 09:15:58] [INFO ] Redundant transitions in 76 ms returned []
[2023-03-14 09:15:58] [INFO ] Invariant cache hit.
[2023-03-14 09:16:01] [INFO ] Dead Transitions using invariants and state equation in 2778 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 6016 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 118 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (AND p0 (NOT p1))]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 2}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 2}, { cond=(AND p0 (NOT p1)), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(OR (GEQ s2211 1) (GEQ s2471 1) (GEQ s2276 1) (GEQ s2406 1) (GEQ s2341 1) (GEQ s2000 1) (GEQ s2130 1) (GEQ s2065 1) (GEQ s2162 1) (GEQ s2227 1) (GEQ s2...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 61979 steps with 0 reset in 1320 ms.
FORMULA Philosophers-COL-000500-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-09 finished in 7495 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' '!((p0 U X(X(p1))))'
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 29 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:16:03] [INFO ] Invariant cache hit.
[2023-03-14 09:16:03] [INFO ] Implicit Places using invariants in 701 ms returned []
[2023-03-14 09:16:03] [INFO ] Invariant cache hit.
[2023-03-14 09:16:05] [INFO ] Implicit Places using invariants and state equation in 1855 ms returned []
Implicit Place search using SMT with State Equation took 2563 ms to find 0 implicit places.
[2023-03-14 09:16:05] [INFO ] Invariant cache hit.
[2023-03-14 09:16:08] [INFO ] Dead Transitions using invariants and state equation in 2821 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5414 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 205 ms :[(NOT p1), (NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={} source=0 dest: 3}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=(NOT p0), acceptance={} source=2 dest: 5}, { cond=p0, acceptance={} source=2 dest: 6}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=(NOT p0), acceptance={} source=4 dest: 1}, { cond=p0, acceptance={} source=4 dest: 2}], [{ cond=(NOT p1), acceptance={} source=5 dest: 0}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=6 dest: 5}, { cond=(AND p0 (NOT p1)), acceptance={0} source=6 dest: 6}]], initial=4, aps=[p1:(OR (AND (GEQ s848 1) (GEQ s1348 1)) (AND (GEQ s552 1) (GEQ s1052 1)) (AND (GEQ s557 1) (GEQ s1057 1)) (AND (GEQ s853 1) (GEQ s1353 1)) (AND (GEQ s838 ...], 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, null, null, null][false, false, false, false, false, false, false]]
Product exploration timeout after 80830 steps with 23026 reset in 10003 ms.
Product exploration timeout after 78040 steps with 22281 reset in 10001 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p1) p0), (X p0), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(X (X (NOT p1))), (X (X p1)), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 (NOT p1)))))]
Knowledge based reduction with 3 factoid took 207 ms. Reduced automaton from 7 states, 10 edges and 2 AP (stutter sensitive) to 6 states, 7 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 198 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Incomplete random walk after 10000 steps, including 2 resets, run finished after 393 ms. (steps per millisecond=25 ) properties (out of 3) seen :2
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 1698 ms. (steps per millisecond=5 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-14 09:16:44] [INFO ] Invariant cache hit.
[2023-03-14 09:16:45] [INFO ] [Real]Absence check using 1000 positive place invariants in 175 ms returned sat
[2023-03-14 09:16:45] [INFO ] After 562ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-14 09:16:46] [INFO ] [Nat]Absence check using 1000 positive place invariants in 198 ms returned sat
[2023-03-14 09:16:47] [INFO ] After 1151ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-14 09:16:47] [INFO ] After 1334ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 110 ms.
[2023-03-14 09:16:47] [INFO ] After 2097ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Finished Parikh walk after 500 steps, including 0 resets, run visited all 1 properties in 31 ms. (steps per millisecond=16 )
Parikh walk visited 1 properties in 37 ms.
Knowledge obtained : [(AND (NOT p1) p0), (X p0), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(X (X (NOT p1))), (X (X p1)), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 (NOT p1))))), (F p1), (F (NOT (AND p0 (NOT p1)))), (F (AND (NOT p0) (NOT p1)))]
Knowledge based reduction with 3 factoid took 326 ms. Reduced automaton from 6 states, 7 edges and 2 AP (stutter sensitive) to 6 states, 7 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 148 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Stuttering acceptance computed with spot in 174 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
[2023-03-14 09:16:49] [INFO ] Invariant cache hit.
Could not prove EG (NOT p1)
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 23 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:17:04] [INFO ] Invariant cache hit.
[2023-03-14 09:17:05] [INFO ] Implicit Places using invariants in 728 ms returned []
[2023-03-14 09:17:05] [INFO ] Invariant cache hit.
[2023-03-14 09:17:07] [INFO ] Implicit Places using invariants and state equation in 1756 ms returned []
Implicit Place search using SMT with State Equation took 2505 ms to find 0 implicit places.
[2023-03-14 09:17:07] [INFO ] Invariant cache hit.
[2023-03-14 09:17:09] [INFO ] Dead Transitions using invariants and state equation in 2710 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5252 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p1) p0), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 (NOT p1)))))]
Knowledge based reduction with 2 factoid took 125 ms. Reduced automaton from 6 states, 7 edges and 2 AP (stutter sensitive) to 6 states, 7 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 184 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Incomplete random walk after 10000 steps, including 2 resets, run finished after 391 ms. (steps per millisecond=25 ) properties (out of 3) seen :2
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 1699 ms. (steps per millisecond=5 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-14 09:17:26] [INFO ] Invariant cache hit.
[2023-03-14 09:17:28] [INFO ] [Real]Absence check using 1000 positive place invariants in 184 ms returned sat
[2023-03-14 09:17:28] [INFO ] After 557ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-14 09:17:29] [INFO ] [Nat]Absence check using 1000 positive place invariants in 182 ms returned sat
[2023-03-14 09:17:30] [INFO ] After 1146ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-14 09:17:30] [INFO ] After 1312ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 110 ms.
[2023-03-14 09:17:30] [INFO ] After 1955ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Finished Parikh walk after 500 steps, including 0 resets, run visited all 1 properties in 35 ms. (steps per millisecond=14 )
Parikh walk visited 1 properties in 36 ms.
Knowledge obtained : [(AND (NOT p1) p0), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 (NOT p1))))), (F p1), (F (NOT (AND p0 (NOT p1)))), (F (AND (NOT p0) (NOT p1)))]
Knowledge based reduction with 2 factoid took 167 ms. Reduced automaton from 6 states, 7 edges and 2 AP (stutter sensitive) to 6 states, 7 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 159 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Stuttering acceptance computed with spot in 242 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
[2023-03-14 09:17:32] [INFO ] Invariant cache hit.
Could not prove EG (NOT p1)
Stuttering acceptance computed with spot in 183 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Product exploration timeout after 79720 steps with 22733 reset in 10001 ms.
Product exploration timeout after 76080 steps with 21776 reset in 10001 ms.
Applying partial POR strategy [false, true, true, false, false, false]
Stuttering acceptance computed with spot in 188 ms :[(NOT p1), (NOT p1), true, (NOT p1), (NOT p1), (NOT p1)]
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 47 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:18:08] [INFO ] Redundant transitions in 78 ms returned []
[2023-03-14 09:18:08] [INFO ] Invariant cache hit.
[2023-03-14 09:18:10] [INFO ] Dead Transitions using invariants and state equation in 2797 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 2943 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 25 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:18:10] [INFO ] Invariant cache hit.
[2023-03-14 09:18:11] [INFO ] Implicit Places using invariants in 729 ms returned []
[2023-03-14 09:18:11] [INFO ] Invariant cache hit.
[2023-03-14 09:18:13] [INFO ] Implicit Places using invariants and state equation in 1900 ms returned []
Implicit Place search using SMT with State Equation took 2632 ms to find 0 implicit places.
[2023-03-14 09:18:13] [INFO ] Invariant cache hit.
[2023-03-14 09:18:16] [INFO ] Dead Transitions using invariants and state equation in 2934 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5593 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Treatment of property Philosophers-COL-000500-LTLFireability-10 finished in 133589 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(X(p0)) U (p0 U p1)))'
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 21 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:18:16] [INFO ] Invariant cache hit.
[2023-03-14 09:18:17] [INFO ] Implicit Places using invariants in 743 ms returned []
[2023-03-14 09:18:17] [INFO ] Invariant cache hit.
[2023-03-14 09:18:19] [INFO ] Implicit Places using invariants and state equation in 1861 ms returned []
Implicit Place search using SMT with State Equation took 2608 ms to find 0 implicit places.
[2023-03-14 09:18:19] [INFO ] Invariant cache hit.
[2023-03-14 09:18:22] [INFO ] Dead Transitions using invariants and state equation in 2933 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5565 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 171 ms :[true, p0, p1, (AND p0 p1), p1]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=p0, acceptance={0} source=1 dest: 1}], [{ cond=p1, acceptance={} source=2 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 3}, { cond=(AND p0 (NOT p1)), acceptance={} source=2 dest: 4}], [{ cond=(AND p0 p1), acceptance={} source=3 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={} source=3 dest: 3}], [{ cond=p1, acceptance={} source=4 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={} source=4 dest: 4}]], initial=2, aps=[p0:(OR (AND (GEQ s603 1) (GEQ s1604 1)) (AND (GEQ s598 1) (GEQ s1599 1)) (AND (GEQ s894 1) (GEQ s1895 1)) (AND (GEQ s899 1) (GEQ s1900 1)) (AND (GEQ s588 ...], 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, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 8 reset in 2365 ms.
Stack based approach found an accepted trace after 3256 steps with 2 reset with depth 3253 and stack size 3253 in 140 ms.
FORMULA Philosophers-COL-000500-LTLFireability-11 FALSE TECHNIQUES STACK_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-11 finished in 8270 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 U p1)))'
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 21 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:18:24] [INFO ] Invariant cache hit.
[2023-03-14 09:18:25] [INFO ] Implicit Places using invariants in 679 ms returned []
[2023-03-14 09:18:25] [INFO ] Invariant cache hit.
[2023-03-14 09:18:27] [INFO ] Implicit Places using invariants and state equation in 1922 ms returned []
Implicit Place search using SMT with State Equation took 2603 ms to find 0 implicit places.
[2023-03-14 09:18:27] [INFO ] Invariant cache hit.
[2023-03-14 09:18:30] [INFO ] Dead Transitions using invariants and state equation in 2956 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5584 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 105 ms :[(NOT p1), (NOT p1), true]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p1) p0), acceptance={0} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={0} source=2 dest: 2}]], initial=1, aps=[p1:(AND (OR (LT s171 1) (LT s670 1)) (OR (LT s467 1) (LT s966 1)) (OR (LT s181 1) (LT s680 1)) (OR (LT s477 1) (LT s976 1)) (OR (LT s161 1) (LT s660 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][false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 1 ms.
FORMULA Philosophers-COL-000500-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-12 finished in 5722 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||G(!p1)))))'
Support contains 1500 out of 2500 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 30 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:18:30] [INFO ] Invariant cache hit.
[2023-03-14 09:18:31] [INFO ] Implicit Places using invariants in 854 ms returned []
[2023-03-14 09:18:31] [INFO ] Invariant cache hit.
[2023-03-14 09:18:33] [INFO ] Implicit Places using invariants and state equation in 2172 ms returned []
Implicit Place search using SMT with State Equation took 3028 ms to find 0 implicit places.
[2023-03-14 09:18:33] [INFO ] Invariant cache hit.
[2023-03-14 09:18:36] [INFO ] Dead Transitions using invariants and state equation in 2789 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5849 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 75 ms :[(AND p1 p0), (AND p1 p0)]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 0}, { cond=(AND p1 p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}]], initial=1, aps=[p1:(AND (OR (LT s171 1) (LT s670 1)) (OR (LT s467 1) (LT s966 1)) (OR (LT s181 1) (LT s680 1)) (OR (LT s477 1) (LT s976 1)) (OR (LT s161 1) (LT s660 1)) (...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 50000 reset in 9572 ms.
Product exploration explored 100000 steps with 50000 reset in 9813 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p1) (NOT p0)), (X (NOT (AND (NOT p1) p0))), (X (NOT (AND p1 p0))), (X (X (NOT (AND p1 p0))))]
False Knowledge obtained : [(X (X (AND (NOT p1) p0))), (X (X (NOT (AND (NOT p1) p0))))]
Knowledge sufficient to adopt a stutter insensitive property.
Property proved to be true thanks to knowledge :(AND (NOT p1) (NOT p0))
Knowledge based reduction with 4 factoid took 150 ms. Reduced automaton from 2 states, 3 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Philosophers-COL-000500-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Philosophers-COL-000500-LTLFireability-14 finished in 38966 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 U X(!p0))))))'
Support contains 0 out of 2500 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 2500/2500 places, 2500/2500 transitions.
Applied a total of 0 rules in 43 ms. Remains 2500 /2500 variables (removed 0) and now considering 2500/2500 (removed 0) transitions.
[2023-03-14 09:19:09] [INFO ] Invariant cache hit.
[2023-03-14 09:19:10] [INFO ] Implicit Places using invariants in 883 ms returned []
[2023-03-14 09:19:10] [INFO ] Invariant cache hit.
[2023-03-14 09:19:12] [INFO ] Implicit Places using invariants and state equation in 2148 ms returned []
Implicit Place search using SMT with State Equation took 3033 ms to find 0 implicit places.
[2023-03-14 09:19:12] [INFO ] Redundant transitions in 80 ms returned []
[2023-03-14 09:19:12] [INFO ] Invariant cache hit.
[2023-03-14 09:19:15] [INFO ] Dead Transitions using invariants and state equation in 2819 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 6010 ms. Remains : 2500/2500 places, 2500/2500 transitions.
Stuttering acceptance computed with spot in 9 ms :[false]
Running random walk in product with property : Philosophers-COL-000500-LTLFireability-15 automaton TGBA Formula[mat=[[]], initial=0, aps=[], nbAcceptance=0, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Initial state of product has no viable successors after 0 steps with 0 reset in 0 ms.
FORMULA Philosophers-COL-000500-LTLFireability-15 TRUE TECHNIQUES STUTTER_TEST
Treatment of property Philosophers-COL-000500-LTLFireability-15 finished in 6066 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((F(p2)||p1))||p0)))'
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' '!((p0 U X(X(p1))))'
[2023-03-14 09:19:15] [INFO ] Flatten gal took : 126 ms
[2023-03-14 09:19:16] [INFO ] Export to MCC of 2 properties in file /home/mcc/execution/LTLFireability.sr.xml took 16 ms.
[2023-03-14 09:19:16] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 2500 places, 2500 transitions and 8000 arcs took 11 ms.
Total runtime 353679 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT Philosophers-COL-000500
BK_EXAMINATION: LTLFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/373
LTLFireability
FORMULA Philosophers-COL-000500-LTLFireability-04 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA Philosophers-COL-000500-LTLFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
BK_STOP 1678785821569
--------------------
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/373/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/373/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/373/LTLFireability.xml
lola: Rule S: 0 transitions removed,0 places removed
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: LAUNCH task # 1 (type EXCL) for 0 Philosophers-COL-000500-LTLFireability-04
lola: time limit : 1688 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
Philosophers-COL-000500-LTLFireability-04: LTL 0 0 1 0 1 0 0 0
Philosophers-COL-000500-LTLFireability-10: LTL 0 1 0 0 1 0 0 0
TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
1 LTL EXCL 4/1688 1/32 Philosophers-COL-000500-LTLFireability-04 40170 m, 8034 m/sec, 41030 t fired, .
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TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
1 LTL EXCL 9/1688 2/32 Philosophers-COL-000500-LTLFireability-04 89538 m, 9873 m/sec, 94002 t fired, .
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TASK CATEGORY TYPE TIME/TLIMIT MEM PG/PGLIMIT FORMULA STATUS
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1 LTL EXCL 19/1688 4/32 Philosophers-COL-000500-LTLFireability-04 185851 m, 9488 m/sec, 207378 t fired, .
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1 LTL EXCL 24/1688 5/32 Philosophers-COL-000500-LTLFireability-04 228554 m, 8540 m/sec, 263269 t fired, .
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lola: FINISHED task # 1 (type EXCL) for Philosophers-COL-000500-LTLFireability-04
lola: result : true
lola: markings : 375251
lola: fired transitions : 500000
lola: time used : 40.000000
lola: memory pages used : 7
lola: LAUNCH task # 4 (type EXCL) for 3 Philosophers-COL-000500-LTLFireability-10
lola: time limit : 3337 sec
lola: memory limit: 32 pages
lola: FINISHED task # 4 (type EXCL) for Philosophers-COL-000500-LTLFireability-10
lola: result : false
lola: markings : 816
lola: fired transitions : 816
lola: time used : 1.000000
lola: memory pages used : 1
lola: Portfolio finished: no open formulas
FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
Philosophers-COL-000500-LTLFireability-04: LTL true LTL model checker
Philosophers-COL-000500-LTLFireability-10: LTL false LTL model checker
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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="Philosophers-COL-000500"
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 Philosophers-COL-000500, 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 r295-tall-167873947500132"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Philosophers-COL-000500.tgz
mv Philosophers-COL-000500 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 ;