fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r457-smll-167912648900140
Last Updated
May 14, 2023

About the Execution of LTSMin+red for SmallOperatingSystem-PT-MT8192DC2048

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
371.239 16867.00 25727.00 773.60 FFFFFFFTFFF?TFTT 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.r457-smll-167912648900140.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)
........................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is SmallOperatingSystem-PT-MT8192DC2048, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r457-smll-167912648900140
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 440K
-rw-r--r-- 1 mcc users 9.6K Feb 25 12:45 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K Feb 25 12:45 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.5K Feb 25 12:44 CTLFireability.txt
-rw-r--r-- 1 mcc users 64K Feb 25 12:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.7K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.5K Feb 25 17:08 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 17:08 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Feb 25 17:08 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Feb 25 17:08 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 25 12:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 81K Feb 25 12:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Feb 25 12:45 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 49K Feb 25 12:45 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.1K Feb 25 17:08 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K Feb 25 17:08 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 13 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 8.1K 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 SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-00
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-01
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-02
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-03
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-04
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-05
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-06
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-07
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-08
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-09
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-10
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-12
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-13
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-14
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1679304784361

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=ltsminxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SmallOperatingSystem-PT-MT8192DC2048
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-20 09:33:07] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-20 09:33:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 09:33:07] [INFO ] Load time of PNML (sax parser for PT used): 32 ms
[2023-03-20 09:33:07] [INFO ] Transformed 9 places.
[2023-03-20 09:33:07] [INFO ] Transformed 8 transitions.
[2023-03-20 09:33:07] [INFO ] Parsed PT model containing 9 places and 8 transitions and 27 arcs in 172 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 15 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 9 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Applied a total of 0 rules in 14 ms. Remains 9 /9 variables (removed 0) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 9 cols
[2023-03-20 09:33:07] [INFO ] Computed 4 place invariants in 11 ms
[2023-03-20 09:33:08] [INFO ] Implicit Places using invariants in 272 ms returned []
[2023-03-20 09:33:08] [INFO ] Invariant cache hit.
[2023-03-20 09:33:08] [INFO ] Implicit Places using invariants and state equation in 42 ms returned []
Implicit Place search using SMT with State Equation took 362 ms to find 0 implicit places.
[2023-03-20 09:33:08] [INFO ] Invariant cache hit.
[2023-03-20 09:33:08] [INFO ] Dead Transitions using invariants and state equation in 34 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 412 ms. Remains : 9/9 places, 8/8 transitions.
Support contains 9 out of 9 places after structural reductions.
[2023-03-20 09:33:08] [INFO ] Flatten gal took : 20 ms
[2023-03-20 09:33:08] [INFO ] Flatten gal took : 5 ms
[2023-03-20 09:33:08] [INFO ] Input system was already deterministic with 8 transitions.
Incomplete random walk after 10247 steps, including 2 resets, run finished after 22 ms. (steps per millisecond=465 ) properties (out of 12) seen :4
Finished Best-First random walk after 112 steps, including 0 resets, run visited all 8 properties in 5 ms. (steps per millisecond=22 )
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' '!(X((F(G(p0))||G(p1))))'
Support contains 4 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 8 transition count 7
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 8 transition count 7
Applied a total of 2 rules in 4 ms. Remains 8 /9 variables (removed 1) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 8 cols
[2023-03-20 09:33:08] [INFO ] Computed 4 place invariants in 0 ms
[2023-03-20 09:33:08] [INFO ] Implicit Places using invariants in 31 ms returned []
[2023-03-20 09:33:08] [INFO ] Invariant cache hit.
[2023-03-20 09:33:08] [INFO ] Implicit Places using invariants and state equation in 34 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
[2023-03-20 09:33:08] [INFO ] Invariant cache hit.
[2023-03-20 09:33:08] [INFO ] Dead Transitions using invariants and state equation in 34 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 7/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 109 ms. Remains : 8/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 271 ms :[(AND (NOT p1) (NOT p0)), (NOT p0), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=p1, acceptance={} source=0 dest: 0}, { cond=(NOT p1), acceptance={} source=0 dest: 1}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=true, acceptance={} source=2 dest: 0}]], initial=2, aps=[p1:(OR (LT s0 1) (LT s2 1) (LT s5 1)), p0:(AND (GEQ s0 1) (GEQ s1 1) (GEQ s2 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 0 reset in 391 ms.
Stack based approach found an accepted trace after 19656 steps with 0 reset with depth 19657 and stack size 15993 in 51 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-00 FALSE TECHNIQUES STACK_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-00 finished in 913 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 2 out of 9 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 7
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 2 rules applied. Total rules applied 3 place count 7 transition count 6
Reduce places removed 2 places and 0 transitions.
Graph (trivial) has 2 edges and 5 vertex of which 2 / 5 are part of one of the 1 SCC in 3 ms
Free SCC test removed 1 places
Iterating post reduction 2 with 3 rules applied. Total rules applied 6 place count 4 transition count 6
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 7 place count 4 transition count 5
Applied a total of 7 rules in 17 ms. Remains 4 /9 variables (removed 5) and now considering 5/8 (removed 3) transitions.
// Phase 1: matrix 5 rows 4 cols
[2023-03-20 09:33:09] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-20 09:33:09] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 09:33:09] [INFO ] Invariant cache hit.
[2023-03-20 09:33:09] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 59 ms to find 0 implicit places.
[2023-03-20 09:33:09] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 09:33:09] [INFO ] Invariant cache hit.
[2023-03-20 09:33:09] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 4/9 places, 5/8 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 111 ms. Remains : 4/9 places, 5/8 transitions.
Stuttering acceptance computed with spot in 46 ms :[(NOT p0)]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(OR (LT s1 1) (LT s2 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 5 steps with 0 reset in 1 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-01 finished in 175 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(G(p1))))'
Support contains 2 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Applied a total of 1 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 8 cols
[2023-03-20 09:33:09] [INFO ] Computed 3 place invariants in 2 ms
[2023-03-20 09:33:09] [INFO ] Implicit Places using invariants in 39 ms returned []
[2023-03-20 09:33:09] [INFO ] Invariant cache hit.
[2023-03-20 09:33:09] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 82 ms to find 0 implicit places.
[2023-03-20 09:33:09] [INFO ] Invariant cache hit.
[2023-03-20 09:33:09] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 8/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 114 ms. Remains : 8/9 places, 8/8 transitions.
Stuttering acceptance computed with spot in 114 ms :[(NOT p1), (NOT p1), true]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=p1, acceptance={} source=0 dest: 0}, { cond=(NOT p1), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={} source=1 dest: 0}, { cond=(AND p0 p1), acceptance={} source=1 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={0} source=1 dest: 1}], [{ cond=true, acceptance={0} source=2 dest: 2}]], initial=1, aps=[p1:(GEQ s6 1), p0:(GEQ s7 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null, null][false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-02 finished in 244 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(p0) U (p1||X(p2))) U (p3&&F(p4)))))'
Support contains 4 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Applied a total of 1 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 8/8 (removed 0) transitions.
[2023-03-20 09:33:10] [INFO ] Invariant cache hit.
[2023-03-20 09:33:10] [INFO ] Implicit Places using invariants in 32 ms returned []
[2023-03-20 09:33:10] [INFO ] Invariant cache hit.
[2023-03-20 09:33:10] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
[2023-03-20 09:33:10] [INFO ] Invariant cache hit.
[2023-03-20 09:33:10] [INFO ] Dead Transitions using invariants and state equation in 32 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 8/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 99 ms. Remains : 8/9 places, 8/8 transitions.
Stuttering acceptance computed with spot in 370 ms :[(OR (NOT p3) (NOT p4)), (OR (NOT p3) (NOT p4)), (AND (NOT p0) (NOT p2)), (AND (NOT p1) (NOT p2)), (NOT p4), (NOT p0)]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p3), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p3) (NOT p1) (NOT p0)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p3) (NOT p1)), acceptance={} source=0 dest: 3}, { cond=(AND p3 (NOT p4)), acceptance={} source=0 dest: 4}], [{ cond=(NOT p3), acceptance={0} source=1 dest: 1}, { cond=(AND (NOT p3) (NOT p1) (NOT p0)), acceptance={0} source=1 dest: 2}, { cond=(AND (NOT p3) (NOT p1)), acceptance={0} source=1 dest: 3}, { cond=(AND p3 (NOT p4)), acceptance={0} source=1 dest: 4}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={} source=2 dest: 5}], [{ cond=(AND (NOT p1) (NOT p0) (NOT p2)), acceptance={0} source=3 dest: 2}, { cond=(AND (NOT p1) (NOT p2)), acceptance={0} source=3 dest: 3}], [{ cond=(NOT p4), acceptance={0} source=4 dest: 4}], [{ cond=(NOT p0), acceptance={0} source=5 dest: 5}]], initial=0, aps=[p3:(GEQ s3 1), p1:(GEQ s6 1), p0:(AND (GEQ s2 1) (GEQ s6 1)), p4:(GEQ s7 1), p2:(GEQ s2 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Product exploration explored 100000 steps with 3622 reset in 267 ms.
Stack based approach found an accepted trace after 10 steps with 0 reset with depth 11 and stack size 11 in 0 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-03 FALSE TECHNIQUES STACK_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-03 finished in 794 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(!p0)))'
Support contains 1 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 2 place count 7 transition count 7
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 7 transition count 7
Applied a total of 3 rules in 1 ms. Remains 7 /9 variables (removed 2) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 7 cols
[2023-03-20 09:33:10] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 09:33:10] [INFO ] Implicit Places using invariants in 30 ms returned []
[2023-03-20 09:33:10] [INFO ] Invariant cache hit.
[2023-03-20 09:33:10] [INFO ] Implicit Places using invariants and state equation in 34 ms returned []
Implicit Place search using SMT with State Equation took 67 ms to find 0 implicit places.
[2023-03-20 09:33:10] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 7/9 places, 7/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 95 ms. Remains : 7/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 91 ms :[true, p0, p0]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={} source=2 dest: 0}, { cond=(NOT p0), acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(GEQ s6 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][false, false, false]]
Entered a terminal (fully accepting) state of product in 6 steps with 0 reset in 2 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-04 finished in 206 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(!p0)))'
Support contains 1 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Applied a total of 1 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 8 cols
[2023-03-20 09:33:11] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants in 32 ms returned []
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 74 ms to find 0 implicit places.
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Dead Transitions using invariants and state equation in 46 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 8/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 122 ms. Remains : 8/9 places, 8/8 transitions.
Stuttering acceptance computed with spot in 93 ms :[true, p0, p0]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={} source=2 dest: 0}, { cond=(NOT p0), acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(GEQ s2 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][false, false, false]]
Entered a terminal (fully accepting) state of product in 34 steps with 0 reset in 0 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-08 finished in 230 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(G(!p0))))'
Support contains 3 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 8 transition count 7
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 8 transition count 7
Applied a total of 2 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 8 cols
[2023-03-20 09:33:11] [INFO ] Computed 4 place invariants in 0 ms
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants in 32 ms returned []
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Dead Transitions using invariants and state equation in 34 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 7/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 102 ms. Remains : 8/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 130 ms :[true, p0, p0, p0]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=p0, acceptance={} source=1 dest: 0}, { cond=(NOT p0), acceptance={} source=1 dest: 1}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=true, acceptance={} source=3 dest: 2}]], initial=3, aps=[p0:(AND (GEQ s0 1) (GEQ s1 1) (GEQ s2 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][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-09 finished in 248 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||X(p0))))'
Support contains 1 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 2 place count 7 transition count 7
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 7 transition count 7
Applied a total of 3 rules in 1 ms. Remains 7 /9 variables (removed 2) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 7 cols
[2023-03-20 09:33:11] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 60 ms to find 0 implicit places.
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 7/9 places, 7/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 88 ms. Remains : 7/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 127 ms :[(NOT p0), true, (NOT p0), (NOT p0)]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={0} source=1 dest: 1}], [{ cond=(NOT p0), acceptance={} source=2 dest: 3}], [{ cond=(NOT p0), acceptance={} source=3 dest: 1}]], initial=0, aps=[p0:(GEQ s3 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 8 steps with 2 reset in 0 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-10 finished in 228 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(X(X(F(p0))))))'
Support contains 2 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Applied a total of 1 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 8 cols
[2023-03-20 09:33:11] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Implicit Places using invariants and state equation in 36 ms returned []
Implicit Place search using SMT with State Equation took 63 ms to find 0 implicit places.
[2023-03-20 09:33:11] [INFO ] Invariant cache hit.
[2023-03-20 09:33:11] [INFO ] Dead Transitions using invariants and state equation in 28 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 8/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 94 ms. Remains : 8/9 places, 8/8 transitions.
Stuttering acceptance computed with spot in 193 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11 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}], [{ cond=true, acceptance={} source=3 dest: 2}], [{ cond=true, acceptance={} source=4 dest: 3}]], initial=4, aps=[p0:(OR (GEQ s6 1) (GEQ s7 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 18915 reset in 121 ms.
Product exploration explored 100000 steps with 18910 reset in 93 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 : [(NOT p0), true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 104 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 198 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Finished random walk after 1 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=1 )
Knowledge obtained : [(NOT p0), true]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 2 factoid took 121 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 272 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 186 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
[2023-03-20 09:33:13] [INFO ] Invariant cache hit.
[2023-03-20 09:33:13] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-20 09:33:13] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 09:33:13] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2023-03-20 09:33:13] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 1 ms.
[2023-03-20 09:33:13] [INFO ] Added : 0 causal constraints over 0 iterations in 9 ms. Result :sat
Could not prove EG (NOT p0)
Support contains 2 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 8/8 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 8/8 (removed 0) transitions.
[2023-03-20 09:33:13] [INFO ] Invariant cache hit.
[2023-03-20 09:33:13] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-20 09:33:13] [INFO ] Invariant cache hit.
[2023-03-20 09:33:13] [INFO ] Implicit Places using invariants and state equation in 38 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
[2023-03-20 09:33:13] [INFO ] Invariant cache hit.
[2023-03-20 09:33:13] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 95 ms. Remains : 8/8 places, 8/8 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 : [(NOT p0), true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 93 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 188 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Finished random walk after 1 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=1 )
Knowledge obtained : [(NOT p0), true]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 2 factoid took 115 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 187 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 191 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
[2023-03-20 09:33:14] [INFO ] Invariant cache hit.
[2023-03-20 09:33:14] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2023-03-20 09:33:14] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 09:33:14] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2023-03-20 09:33:14] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 3 ms.
[2023-03-20 09:33:14] [INFO ] Added : 0 causal constraints over 0 iterations in 8 ms. Result :sat
Could not prove EG (NOT p0)
Stuttering acceptance computed with spot in 192 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 18941 reset in 97 ms.
Product exploration explored 100000 steps with 18949 reset in 92 ms.
Applying partial POR strategy [true, false, false, false, false]
Stuttering acceptance computed with spot in 189 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Support contains 2 out of 8 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 8/8 places, 8/8 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Deduced a syphon composed of 1 places in 0 ms
Applied a total of 1 rules in 2 ms. Remains 8 /8 variables (removed 0) and now considering 8/8 (removed 0) transitions.
[2023-03-20 09:33:15] [INFO ] Redundant transitions in 1 ms returned []
// Phase 1: matrix 8 rows 8 cols
[2023-03-20 09:33:15] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 09:33:15] [INFO ] Dead Transitions using invariants and state equation in 31 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 8/8 places, 8/8 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 46 ms. Remains : 8/8 places, 8/8 transitions.
Support contains 2 out of 8 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 8/8 places, 8/8 transitions.
Applied a total of 0 rules in 0 ms. Remains 8 /8 variables (removed 0) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 8 cols
[2023-03-20 09:33:15] [INFO ] Computed 3 place invariants in 1 ms
[2023-03-20 09:33:15] [INFO ] Implicit Places using invariants in 28 ms returned []
[2023-03-20 09:33:15] [INFO ] Invariant cache hit.
[2023-03-20 09:33:15] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 63 ms to find 0 implicit places.
[2023-03-20 09:33:15] [INFO ] Invariant cache hit.
[2023-03-20 09:33:15] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 93 ms. Remains : 8/8 places, 8/8 transitions.
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11 finished in 3388 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))'
Support contains 3 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 8 transition count 7
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 8 transition count 7
Applied a total of 2 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 8 cols
[2023-03-20 09:33:15] [INFO ] Computed 4 place invariants in 1 ms
[2023-03-20 09:33:15] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-20 09:33:15] [INFO ] Invariant cache hit.
[2023-03-20 09:33:15] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 54 ms to find 0 implicit places.
[2023-03-20 09:33:15] [INFO ] Invariant cache hit.
[2023-03-20 09:33:15] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 7/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 83 ms. Remains : 8/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 94 ms :[(NOT p0), (NOT p0), true]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={0} source=2 dest: 2}]], initial=1, aps=[p0:(AND (GEQ s0 1) (GEQ s1 1) (GEQ s2 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 54 ms.
Product exploration explored 100000 steps with 50000 reset in 70 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 : [p0, (X p0), true]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 3 factoid took 66 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-12 TRUE TECHNIQUES KNOWLEDGE
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-12 finished in 382 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 U (p1||G(p0)))) U (!p0||G(F(p2)))))'
Support contains 5 out of 9 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 8 transition count 7
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 8 transition count 7
Applied a total of 2 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 7/8 (removed 1) transitions.
[2023-03-20 09:33:15] [INFO ] Invariant cache hit.
[2023-03-20 09:33:15] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-20 09:33:15] [INFO ] Invariant cache hit.
[2023-03-20 09:33:15] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
[2023-03-20 09:33:15] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 09:33:15] [INFO ] Invariant cache hit.
[2023-03-20 09:33:15] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 8/9 places, 7/8 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 91 ms. Remains : 8/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 170 ms :[(AND p0 (NOT p2)), (AND (NOT p0) (NOT p2) (NOT p1)), (AND p0 (NOT p2)), (AND (NOT p0) (NOT p2) (NOT p1))]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(AND p0 (NOT p2)), acceptance={} source=0 dest: 2}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 3}], [{ cond=(AND p0 (NOT p2) (NOT p1)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p2) (NOT p1)), acceptance={0} source=1 dest: 1}], [{ cond=(AND p0 (NOT p2) (NOT p1)), acceptance={} source=2 dest: 1}, { cond=(AND p0 (NOT p2)), acceptance={0} source=2 dest: 2}], [{ cond=(AND (NOT p0) (NOT p2) (NOT p1)), acceptance={} source=3 dest: 1}, { cond=(NOT p1), acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(OR (LT s0 1) (LT s2 1) (LT s5 1)), p2:(AND (GEQ s0 1) (GEQ s2 1) (GEQ s5 1) (GEQ s4 1)), p1:(AND (NOT (AND (GEQ s0 1) (GEQ s2 1) (GEQ s5 1))) (NOT (AN...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null][true, true, true, true]]
Product exploration explored 100000 steps with 8374 reset in 179 ms.
Stack based approach found an accepted trace after 3 steps with 0 reset with depth 4 and stack size 4 in 0 ms.
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-13 FALSE TECHNIQUES STACK_TEST
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-13 finished in 458 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((!p1||G(F(p1))))))'
Support contains 4 out of 9 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 8 transition count 7
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 8 transition count 7
Applied a total of 2 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 7/8 (removed 1) transitions.
[2023-03-20 09:33:16] [INFO ] Invariant cache hit.
[2023-03-20 09:33:16] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-20 09:33:16] [INFO ] Invariant cache hit.
[2023-03-20 09:33:16] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 64 ms to find 0 implicit places.
[2023-03-20 09:33:16] [INFO ] Invariant cache hit.
[2023-03-20 09:33:16] [INFO ] Dead Transitions using invariants and state equation in 24 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 8/9 places, 7/8 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 92 ms. Remains : 8/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 237 ms :[false, false, false, (NOT p1), (NOT p1), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=p0, acceptance={} source=0 dest: 2}], [{ cond=p1, acceptance={} source=1 dest: 3}], [{ cond=(AND (NOT p0) p1), acceptance={} source=2 dest: 3}, { cond=(AND p0 p1), acceptance={} source=2 dest: 5}], [{ cond=true, acceptance={} source=3 dest: 3}, { cond=(NOT p1), acceptance={} source=3 dest: 4}], [{ cond=(NOT p1), acceptance={0} source=4 dest: 4}], [{ cond=(NOT p0), acceptance={} source=5 dest: 3}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=5 dest: 4}, { cond=p0, acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(AND (GEQ s7 1) (GEQ s0 1) (GEQ s1 1) (GEQ s2 1)), p1:(GEQ s7 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 62 ms.
Product exploration explored 100000 steps with 50000 reset in 65 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) (NOT p1)), (X (NOT (AND (NOT p0) p1))), (X (NOT (AND p0 p1))), (X (NOT p1)), true, (X (X (NOT p0))), (X (X (NOT p1))), (X (X (AND (NOT p0) (NOT p1))))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (NOT (AND p0 p1)))
Knowledge based reduction with 8 factoid took 162 ms. Reduced automaton from 6 states, 11 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-15 TRUE TECHNIQUES KNOWLEDGE
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-15 finished in 639 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(X(X(F(p0))))))'
Found a Shortening insensitive property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11
Stuttering acceptance computed with spot in 207 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Support contains 2 out of 9 places. Attempting structural reductions.
Starting structural reductions in LI_LTL mode, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 7
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 7 transition count 7
Applied a total of 2 rules in 3 ms. Remains 7 /9 variables (removed 2) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 7 cols
[2023-03-20 09:33:17] [INFO ] Computed 3 place invariants in 0 ms
[2023-03-20 09:33:17] [INFO ] Implicit Places using invariants in 31 ms returned []
[2023-03-20 09:33:17] [INFO ] Invariant cache hit.
[2023-03-20 09:33:17] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 58 ms to find 0 implicit places.
[2023-03-20 09:33:17] [INFO ] Invariant cache hit.
[2023-03-20 09:33:17] [INFO ] Dead Transitions using invariants and state equation in 24 ms found 0 transitions.
Starting structural reductions in LI_LTL mode, iteration 1 : 7/9 places, 7/8 transitions.
Finished structural reductions in LI_LTL mode , in 1 iterations and 87 ms. Remains : 7/9 places, 7/8 transitions.
Running random walk in product with property : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11 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}], [{ cond=true, acceptance={} source=3 dest: 2}], [{ cond=true, acceptance={} source=4 dest: 3}]], initial=4, aps=[p0:(OR (GEQ s5 1) (GEQ s6 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak, cl-invariant], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 18974 reset in 79 ms.
Product exploration explored 100000 steps with 18983 reset in 76 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 : [(NOT p0), true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 96 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 188 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Finished random walk after 1 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=1 )
Knowledge obtained : [(NOT p0), true]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 2 factoid took 119 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 324 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 194 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
[2023-03-20 09:33:18] [INFO ] Invariant cache hit.
[2023-03-20 09:33:18] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2023-03-20 09:33:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 09:33:18] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2023-03-20 09:33:18] [INFO ] Computed and/alt/rep : 6/9/6 causal constraints (skipped 0 transitions) in 1 ms.
[2023-03-20 09:33:18] [INFO ] Added : 0 causal constraints over 0 iterations in 13 ms. Result :sat
Could not prove EG (NOT p0)
Support contains 2 out of 7 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 7/7 places, 7/7 transitions.
Applied a total of 0 rules in 1 ms. Remains 7 /7 variables (removed 0) and now considering 7/7 (removed 0) transitions.
[2023-03-20 09:33:18] [INFO ] Invariant cache hit.
[2023-03-20 09:33:18] [INFO ] Implicit Places using invariants in 31 ms returned []
[2023-03-20 09:33:18] [INFO ] Invariant cache hit.
[2023-03-20 09:33:18] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
[2023-03-20 09:33:18] [INFO ] Invariant cache hit.
[2023-03-20 09:33:18] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 97 ms. Remains : 7/7 places, 7/7 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 : [(NOT p0), true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 88 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 186 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Finished random walk after 1 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=1 )
Knowledge obtained : [(NOT p0), true]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 2 factoid took 110 ms. Reduced automaton from 5 states, 5 edges and 1 AP (stutter sensitive) to 5 states, 5 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 188 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 186 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
[2023-03-20 09:33:19] [INFO ] Invariant cache hit.
[2023-03-20 09:33:19] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2023-03-20 09:33:19] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 09:33:19] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2023-03-20 09:33:19] [INFO ] Computed and/alt/rep : 6/9/6 causal constraints (skipped 0 transitions) in 2 ms.
[2023-03-20 09:33:19] [INFO ] Added : 0 causal constraints over 0 iterations in 5 ms. Result :sat
Could not prove EG (NOT p0)
Stuttering acceptance computed with spot in 188 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 19002 reset in 68 ms.
Product exploration explored 100000 steps with 19014 reset in 73 ms.
Applying partial POR strategy [true, false, false, false, false]
Stuttering acceptance computed with spot in 185 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Support contains 2 out of 7 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 7/7 places, 7/7 transitions.
Applied a total of 0 rules in 1 ms. Remains 7 /7 variables (removed 0) and now considering 7/7 (removed 0) transitions.
[2023-03-20 09:33:19] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-20 09:33:19] [INFO ] Invariant cache hit.
[2023-03-20 09:33:19] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 35 ms. Remains : 7/7 places, 7/7 transitions.
Support contains 2 out of 7 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 7/7 places, 7/7 transitions.
Applied a total of 0 rules in 0 ms. Remains 7 /7 variables (removed 0) and now considering 7/7 (removed 0) transitions.
[2023-03-20 09:33:19] [INFO ] Invariant cache hit.
[2023-03-20 09:33:19] [INFO ] Implicit Places using invariants in 27 ms returned []
[2023-03-20 09:33:19] [INFO ] Invariant cache hit.
[2023-03-20 09:33:19] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 61 ms to find 0 implicit places.
[2023-03-20 09:33:19] [INFO ] Invariant cache hit.
[2023-03-20 09:33:19] [INFO ] Dead Transitions using invariants and state equation in 25 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 87 ms. Remains : 7/7 places, 7/7 transitions.
Treatment of property SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11 finished in 3252 ms.
[2023-03-20 09:33:19] [INFO ] Flatten gal took : 3 ms
[2023-03-20 09:33:19] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/LTLFireability.sr.xml took 1 ms.
[2023-03-20 09:33:19] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 9 places, 8 transitions and 27 arcs took 1 ms.
Total runtime 12642 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-mc model.pnml -s80% --procs=4 --ltl=/tmp/1333/ltl_0_ --buchi-type=spotba --strategy=ufscc --ltl-semantics=spin --state=tree
Could not compute solution for formula : SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11

BK_STOP 1679304801228

--------------------
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
mcc2023
ltl formula name SmallOperatingSystem-PT-MT8192DC2048-LTLFireability-11
ltl formula formula --ltl=/tmp/1333/ltl_0_
pnml2lts-mc: =============================================================================
pnml2lts-mc: Runtime environment could only preallocate 15 GB while requesting 240 GB.
pnml2lts-mc: Configure your system limits to exploit all memory.
pnml2lts-mc: =============================================================================
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Edge label is id
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
Warning: program compiled against libxml 210 using older 209
pnml2lts-mc( 0/ 4): Petri net has 9 places, 8 transitions and 27 arcs
pnml2lts-mc( 0/ 4): Petri net Petri analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 0.000 real 0.000 user 0.000 sys
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/1333/ltl_0_
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/1333/ltl_0_
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/1333/ltl_0_
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/1333/ltl_0_
pnml2lts-mc( 0/ 4): buchi has 5 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4), ** error **: area memory exhausted
double free or corruption (fasttop)

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="SmallOperatingSystem-PT-MT8192DC2048"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="ltsminxred"
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 ltsminxred"
echo " Input is SmallOperatingSystem-PT-MT8192DC2048, 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 r457-smll-167912648900140"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SmallOperatingSystem-PT-MT8192DC2048.tgz
mv SmallOperatingSystem-PT-MT8192DC2048 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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;