Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r044-tall-174854028000223.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=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 2-5832
Executing tool itstools
Input is CloudReconfiguration-PT-302, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r044-tall-174854028000223
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 9.0K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 99K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 64K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 121K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.9K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 52K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 660K May 29 14:32 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-00
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-01
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-02
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-03
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-04
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-05
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-06
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-07
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-08
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-09
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-10
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-11
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-12
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-13
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-14
FORMULA_NAME CloudReconfiguration-PT-302-ReachabilityFireability-2025-15

=== Now, execution of the tool begins

BK_START 1748582966768

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CloudReconfiguration-PT-302
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202505121319
[2025-05-30 05:29:27] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-05-30 05:29:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-30 05:29:28] [INFO ] Load time of PNML (sax parser for PT used): 148 ms
[2025-05-30 05:29:28] [INFO ] Transformed 2585 places.
[2025-05-30 05:29:28] [INFO ] Transformed 3095 transitions.
[2025-05-30 05:29:28] [INFO ] Found NUPN structural information;
[2025-05-30 05:29:28] [INFO ] Parsed PT model containing 2585 places and 3095 transitions and 6463 arcs in 250 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 12 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (289 resets) in 1620 ms. (24 steps per ms) remains 14/16 properties
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (75 resets) in 256 ms. (155 steps per ms) remains 13/14 properties
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-14 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40001 steps (81 resets) in 216 ms. (184 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40002 steps (97 resets) in 376 ms. (106 steps per ms) remains 13/13 properties
[2025-05-30 05:29:29] [INFO ] Flatten gal took : 382 ms
BEST_FIRST walk for 40003 steps (74 resets) in 913 ms. (43 steps per ms) remains 13/13 properties
[2025-05-30 05:29:29] [INFO ] Flatten gal took : 229 ms
BEST_FIRST walk for 40004 steps (83 resets) in 197 ms. (202 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (73 resets) in 259 ms. (153 steps per ms) remains 11/13 properties
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-07 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-02 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
[2025-05-30 05:29:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4264056852734502740.gal : 105 ms
BEST_FIRST walk for 40004 steps (83 resets) in 152 ms. (261 steps per ms) remains 11/11 properties
[2025-05-30 05:29:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14562527877687635827.prop : 6 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality4264056852734502740.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14562527877687635827.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (79 resets) in 189 ms. (210 steps per ms) remains 11/11 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
BEST_FIRST walk for 40002 steps (80 resets) in 167 ms. (238 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (77 resets) in 134 ms. (296 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40000 steps (74 resets) in 167 ms. (238 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40001 steps (87 resets) in 187 ms. (212 steps per ms) remains 11/11 properties
// Phase 1: matrix 3095 rows 2585 cols
Loading property file /tmp/ReachabilityCardinality14562527877687635827.prop.
[2025-05-30 05:29:30] [INFO ] Computed 4 invariants in 43 ms
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/135 variables, 135/135 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/135 variables, 0/135 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 2439/2574 variables, 4/139 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2574 variables, 2439/2578 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2574 variables, 0/2578 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 3085/5659 variables, 2574/5152 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :4 after 5
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :5 after 6
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :6 after 7
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :7 after 8
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :8 after 9
At refinement iteration 6 (INCLUDED_ONLY) 0/5659 variables, 0/5152 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :9 after 10
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :10 after 11
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :11 after 20
At refinement iteration 7 (OVERLAPS) 2/5661 variables, 1/5153 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/5661 variables, 1/5154 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :20 after 453
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :453 after 2466
SDD proceeding with computation,11 properties remain. new max is 8192
SDD size :2466 after 6634
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5661/5680 variables, and 5154 constraints, problems are : Problem set: 0 solved, 11 unsolved in 5045 ms.
Refiners :[Domain max(s): 2575/2585 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2575/2585 constraints, PredecessorRefiner: 11/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/135 variables, 135/135 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/135 variables, 0/135 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 2439/2574 variables, 4/139 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Reachability property CloudReconfiguration-PT-302-ReachabilityFireability-2025-12 is true.
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-12 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property CloudReconfiguration-PT-302-ReachabilityFireability-2025-05 is true.
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property CloudReconfiguration-PT-302-ReachabilityFireability-2025-01 is true.
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,8 properties remain. new max is 8192
SDD size :6634 after 48867
At refinement iteration 3 (INCLUDED_ONLY) 0/2574 variables, 2439/2578 constraints. Problems are: Problem set: 3 solved, 8 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2574 variables, 0/2578 constraints. Problems are: Problem set: 3 solved, 8 unsolved
Invariant property CloudReconfiguration-PT-302-ReachabilityFireability-2025-10 does not hold.
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-10 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,7 properties remain. new max is 8192
SDD size :48867 after 71264
At refinement iteration 5 (OVERLAPS) 3085/5659 variables, 2574/5152 constraints. Problems are: Problem set: 4 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 16384
SDD size :71264 after 2.78243e+06
At refinement iteration 6 (INCLUDED_ONLY) 0/5659 variables, 5/5157 constraints. Problems are: Problem set: 4 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 32768
SDD size :2.78243e+06 after 4.01871e+06
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5659/5680 variables, and 5157 constraints, problems are : Problem set: 4 solved, 7 unsolved in 5020 ms.
Refiners :[Domain max(s): 2574/2585 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2574/2585 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10279ms problems are : Problem set: 4 solved, 7 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 101 out of 2585 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2585/2585 places, 3095/3095 transitions.
Graph (trivial) has 2712 edges and 2585 vertex of which 622 / 2585 are part of one of the 57 SCC in 10 ms
Free SCC test removed 565 places
Drop transitions (Empty/Sink Transition effects.) removed 687 transitions
Reduce isomorphic transitions removed 687 transitions.
Graph (complete) has 2688 edges and 2020 vertex of which 2006 are kept as prefixes of interest. Removing 14 places using SCC suffix rule.5 ms
Discarding 14 places :
Also discarding 9 output transitions
Drop transitions (Output transitions of discarded places.) removed 9 transitions
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 8 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1173 transitions
Trivial Post-agglo rules discarded 1173 transitions
Performed 1173 trivial Post agglomeration. Transition count delta: 1173
Iterating post reduction 0 with 1181 rules applied. Total rules applied 1183 place count 2006 transition count 1218
Reduce places removed 1173 places and 0 transitions.
Ensure Unique test removed 58 transitions
Reduce isomorphic transitions removed 58 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 41 transitions
Trivial Post-agglo rules discarded 41 transitions
Performed 41 trivial Post agglomeration. Transition count delta: 41
Iterating post reduction 1 with 1272 rules applied. Total rules applied 2455 place count 833 transition count 1119
Reduce places removed 41 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 2 with 49 rules applied. Total rules applied 2504 place count 792 transition count 1111
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 3 with 5 rules applied. Total rules applied 2509 place count 789 transition count 1109
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 4 with 4 rules applied. Total rules applied 2513 place count 788 transition count 1106
Reduce places removed 2 places and 0 transitions.
Performed 83 Post agglomeration using F-continuation condition.Transition count delta: 83
Iterating post reduction 5 with 85 rules applied. Total rules applied 2598 place count 786 transition count 1023
Reduce places removed 83 places and 0 transitions.
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 6 with 97 rules applied. Total rules applied 2695 place count 703 transition count 1009
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 7 with 3 rules applied. Total rules applied 2698 place count 700 transition count 1009
Performed 31 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 31 Pre rules applied. Total rules applied 2698 place count 700 transition count 978
Deduced a syphon composed of 31 places in 1 ms
Reduce places removed 31 places and 0 transitions.
Iterating global reduction 8 with 62 rules applied. Total rules applied 2760 place count 669 transition count 978
Discarding 85 places :
Symmetric choice reduction at 8 with 85 rule applications. Total rules 2845 place count 584 transition count 893
Iterating global reduction 8 with 85 rules applied. Total rules applied 2930 place count 584 transition count 893
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 8 with 3 rules applied. Total rules applied 2933 place count 584 transition count 890
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 9 with 1 rules applied. Total rules applied 2934 place count 583 transition count 890
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 10 with 6 Pre rules applied. Total rules applied 2934 place count 583 transition count 884
Deduced a syphon composed of 6 places in 3 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 10 with 12 rules applied. Total rules applied 2946 place count 577 transition count 884
Discarding 56 places :
Symmetric choice reduction at 10 with 56 rule applications. Total rules 3002 place count 521 transition count 828
Iterating global reduction 10 with 56 rules applied. Total rules applied 3058 place count 521 transition count 828
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 14 transitions
Trivial Post-agglo rules discarded 14 transitions
Performed 14 trivial Post agglomeration. Transition count delta: 14
Iterating post reduction 10 with 30 rules applied. Total rules applied 3088 place count 521 transition count 798
Reduce places removed 14 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 11 with 18 rules applied. Total rules applied 3106 place count 507 transition count 794
Reduce places removed 2 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 12 with 4 rules applied. Total rules applied 3110 place count 505 transition count 792
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 13 with 3 rules applied. Total rules applied 3113 place count 503 transition count 791
Discarding 11 places :
Symmetric choice reduction at 14 with 11 rule applications. Total rules 3124 place count 492 transition count 773
Iterating global reduction 14 with 11 rules applied. Total rules applied 3135 place count 492 transition count 773
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 14 with 2 rules applied. Total rules applied 3137 place count 492 transition count 771
Discarding 3 places :
Symmetric choice reduction at 15 with 3 rule applications. Total rules 3140 place count 489 transition count 765
Iterating global reduction 15 with 3 rules applied. Total rules applied 3143 place count 489 transition count 765
Discarding 2 places :
Symmetric choice reduction at 15 with 2 rule applications. Total rules 3145 place count 487 transition count 761
Iterating global reduction 15 with 2 rules applied. Total rules applied 3147 place count 487 transition count 761
Performed 161 Post agglomeration using F-continuation condition with reduction of 50 identical transitions.
Deduced a syphon composed of 161 places in 0 ms
Reduce places removed 161 places and 0 transitions.
Iterating global reduction 15 with 322 rules applied. Total rules applied 3469 place count 326 transition count 550
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 15 with 14 rules applied. Total rules applied 3483 place count 326 transition count 536
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 16 with 6 rules applied. Total rules applied 3489 place count 323 transition count 533
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 16 with 2 rules applied. Total rules applied 3491 place count 323 transition count 531
Performed 47 Post agglomeration using F-continuation condition with reduction of 6 identical transitions.
Deduced a syphon composed of 47 places in 0 ms
Reduce places removed 47 places and 0 transitions.
Iterating global reduction 17 with 94 rules applied. Total rules applied 3585 place count 276 transition count 574
Ensure Unique test removed 28 transitions
Reduce isomorphic transitions removed 28 transitions.
Iterating post reduction 17 with 28 rules applied. Total rules applied 3613 place count 276 transition count 546
Discarding 11 places :
Symmetric choice reduction at 18 with 11 rule applications. Total rules 3624 place count 265 transition count 524
Iterating global reduction 18 with 11 rules applied. Total rules applied 3635 place count 265 transition count 524
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -15
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 18 with 2 rules applied. Total rules applied 3637 place count 264 transition count 539
Drop transitions (Redundant composition of simpler transitions.) removed 48 transitions
Redundant transition composition rules discarded 48 transitions
Iterating global reduction 18 with 48 rules applied. Total rules applied 3685 place count 264 transition count 491
Free-agglomeration rule applied 20 times.
Iterating global reduction 18 with 20 rules applied. Total rules applied 3705 place count 264 transition count 471
Reduce places removed 20 places and 0 transitions.
Iterating post reduction 18 with 20 rules applied. Total rules applied 3725 place count 244 transition count 471
Drop transitions (Redundant composition of simpler transitions.) removed 5 transitions
Redundant transition composition rules discarded 5 transitions
Iterating global reduction 19 with 5 rules applied. Total rules applied 3730 place count 244 transition count 466
Partial Free-agglomeration rule applied 16 times.
Drop transitions (Partial Free agglomeration) removed 16 transitions
Iterating global reduction 19 with 16 rules applied. Total rules applied 3746 place count 244 transition count 466
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 19 with 1 rules applied. Total rules applied 3747 place count 244 transition count 466
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 19 with 1 rules applied. Total rules applied 3748 place count 243 transition count 465
Applied a total of 3748 rules in 419 ms. Remains 243 /2585 variables (removed 2342) and now considering 465/3095 (removed 2630) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 427 ms. Remains : 243/2585 places, 465/3095 transitions.
RANDOM walk for 40000 steps (1994 resets) in 677 ms. (58 steps per ms) remains 5/7 properties
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (524 resets) in 147 ms. (270 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (447 resets) in 135 ms. (294 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (438 resets) in 108 ms. (367 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (428 resets) in 84 ms. (470 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (451 resets) in 119 ms. (333 steps per ms) remains 5/5 properties
[2025-05-30 05:29:41] [INFO ] Flow matrix only has 457 transitions (discarded 8 similar events)
// Phase 1: matrix 457 rows 243 cols
[2025-05-30 05:29:41] [INFO ] Computed 3 invariants in 6 ms
[2025-05-30 05:29:41] [INFO ] State equation strengthened by 4 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Problem CloudReconfiguration-PT-302-ReachabilityFireability-2025-08 is UNSAT
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-08 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (OVERLAPS) 116/215 variables, 3/3 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/215 variables, 0/3 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 454/669 variables, 215/218 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/669 variables, 3/221 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/669 variables, 0/221 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 31/700 variables, 28/249 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/700 variables, 1/250 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/700 variables, 0/250 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 0/700 variables, 0/250 constraints. Problems are: Problem set: 1 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 700/700 variables, and 250 constraints, problems are : Problem set: 1 solved, 4 unsolved in 438 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 243/243 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 5/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 4 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 133/209 variables, 3/3 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/209 variables, 0/3 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 442/651 variables, 209/212 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/651 variables, 3/215 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/651 variables, 0/215 constraints. Problems are: Problem set: 1 solved, 4 unsolved
Problem CloudReconfiguration-PT-302-ReachabilityFireability-2025-06 is UNSAT
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-06 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 6 (OVERLAPS) 44/695 variables, 29/244 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/695 variables, 1/245 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/695 variables, 2/247 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/695 variables, 0/247 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 5/700 variables, 5/252 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/700 variables, 0/252 constraints. Problems are: Problem set: 2 solved, 3 unsolved
SDD proceeding with computation,7 properties remain. new max is 65536
At refinement iteration 12 (OVERLAPS) 0/700 variables, 0/252 constraints. Problems are: Problem set: 2 solved, 3 unsolved
No progress, stopping.
SDD size :4.01871e+06 after 2.1869e+07
After SMT solving in domain Int declared 700/700 variables, and 252 constraints, problems are : Problem set: 2 solved, 3 unsolved in 956 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 243/243 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 4/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1426ms problems are : Problem set: 2 solved, 3 unsolved
Parikh walk visited 0 properties in 197 ms.
Support contains 52 out of 243 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 243/243 places, 465/465 transitions.
Graph (trivial) has 164 edges and 243 vertex of which 31 / 243 are part of one of the 14 SCC in 0 ms
Free SCC test removed 17 places
Drop transitions (Empty/Sink Transition effects.) removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 24 transitions
Trivial Post-agglo rules discarded 24 transitions
Performed 24 trivial Post agglomeration. Transition count delta: 24
Iterating post reduction 0 with 24 rules applied. Total rules applied 25 place count 226 transition count 409
Reduce places removed 24 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Iterating post reduction 1 with 29 rules applied. Total rules applied 54 place count 202 transition count 404
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 58 place count 198 transition count 404
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 10 Pre rules applied. Total rules applied 58 place count 198 transition count 394
Deduced a syphon composed of 10 places in 1 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 3 with 20 rules applied. Total rules applied 78 place count 188 transition count 394
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 80 place count 186 transition count 392
Iterating global reduction 3 with 2 rules applied. Total rules applied 82 place count 186 transition count 392
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 83 place count 186 transition count 391
Performed 17 Post agglomeration using F-continuation condition with reduction of 4 identical transitions.
Deduced a syphon composed of 17 places in 1 ms
Reduce places removed 17 places and 0 transitions.
Iterating global reduction 4 with 34 rules applied. Total rules applied 117 place count 169 transition count 370
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 4 with 5 rules applied. Total rules applied 122 place count 169 transition count 365
Discarding 2 places :
Symmetric choice reduction at 5 with 2 rule applications. Total rules 124 place count 167 transition count 361
Iterating global reduction 5 with 2 rules applied. Total rules applied 126 place count 167 transition count 361
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 127 place count 167 transition count 360
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: -8
Deduced a syphon composed of 8 places in 1 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 6 with 16 rules applied. Total rules applied 143 place count 159 transition count 368
Ensure Unique test removed 21 transitions
Reduce isomorphic transitions removed 21 transitions.
Iterating post reduction 6 with 21 rules applied. Total rules applied 164 place count 159 transition count 347
Discarding 6 places :
Symmetric choice reduction at 7 with 6 rule applications. Total rules 170 place count 153 transition count 334
Iterating global reduction 7 with 6 rules applied. Total rules applied 176 place count 153 transition count 334
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 7 with 2 rules applied. Total rules applied 178 place count 153 transition count 332
Drop transitions (Redundant composition of simpler transitions.) removed 19 transitions
Redundant transition composition rules discarded 19 transitions
Iterating global reduction 8 with 19 rules applied. Total rules applied 197 place count 153 transition count 313
Free-agglomeration rule applied 2 times.
Iterating global reduction 8 with 2 rules applied. Total rules applied 199 place count 153 transition count 311
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 8 with 2 rules applied. Total rules applied 201 place count 151 transition count 311
Applied a total of 201 rules in 59 ms. Remains 151 /243 variables (removed 92) and now considering 311/465 (removed 154) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 59 ms. Remains : 151/243 places, 311/465 transitions.
RANDOM walk for 40000 steps (2314 resets) in 183 ms. (217 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (537 resets) in 124 ms. (320 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40001 steps (472 resets) in 49 ms. (800 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (494 resets) in 76 ms. (519 steps per ms) remains 2/3 properties
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
[2025-05-30 05:29:42] [INFO ] Flow matrix only has 302 transitions (discarded 9 similar events)
// Phase 1: matrix 302 rows 151 cols
[2025-05-30 05:29:42] [INFO ] Computed 3 invariants in 2 ms
[2025-05-30 05:29:42] [INFO ] State equation strengthened by 5 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 93/126 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/126 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 282/408 variables, 126/129 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/408 variables, 3/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/408 variables, 0/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 28/436 variables, 16/148 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/436 variables, 2/150 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/436 variables, 0/150 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 10/446 variables, 4/154 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/446 variables, 0/154 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 6/452 variables, 4/158 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/452 variables, 0/158 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 1/453 variables, 1/159 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/453 variables, 0/159 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 0/453 variables, 0/159 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 453/453 variables, and 159 constraints, problems are : Problem set: 0 solved, 2 unsolved in 179 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 151/151 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/33 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 93/126 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/126 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 282/408 variables, 126/129 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/408 variables, 3/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/408 variables, 0/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 28/436 variables, 16/148 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/436 variables, 2/150 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/436 variables, 2/152 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/436 variables, 0/152 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 10/446 variables, 4/156 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/446 variables, 0/156 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 6/452 variables, 4/160 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/452 variables, 0/160 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 1/453 variables, 1/161 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/453 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (OVERLAPS) 0/453 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 453/453 variables, and 161 constraints, problems are : Problem set: 0 solved, 2 unsolved in 630 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 151/151 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 819ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 88 ms.
Support contains 33 out of 151 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 151/151 places, 311/311 transitions.
Graph (trivial) has 65 edges and 151 vertex of which 12 / 151 are part of one of the 5 SCC in 0 ms
Free SCC test removed 7 places
Drop transitions (Empty/Sink Transition effects.) removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 7 transitions
Trivial Post-agglo rules discarded 7 transitions
Performed 7 trivial Post agglomeration. Transition count delta: 7
Iterating post reduction 0 with 7 rules applied. Total rules applied 8 place count 144 transition count 292
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 1 with 7 rules applied. Total rules applied 15 place count 137 transition count 292
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 15 place count 137 transition count 291
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 17 place count 136 transition count 291
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 19 place count 134 transition count 288
Iterating global reduction 2 with 2 rules applied. Total rules applied 21 place count 134 transition count 288
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 22 place count 134 transition count 287
Performed 12 Post agglomeration using F-continuation condition with reduction of 1 identical transitions.
Deduced a syphon composed of 12 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 3 with 24 rules applied. Total rules applied 46 place count 122 transition count 274
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 49 place count 122 transition count 271
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 50 place count 121 transition count 269
Iterating global reduction 4 with 1 rules applied. Total rules applied 51 place count 121 transition count 269
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 52 place count 121 transition count 268
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 54 place count 120 transition count 268
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 56 place count 120 transition count 266
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 57 place count 119 transition count 264
Iterating global reduction 6 with 1 rules applied. Total rules applied 58 place count 119 transition count 264
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 59 place count 119 transition count 263
Drop transitions (Redundant composition of simpler transitions.) removed 11 transitions
Redundant transition composition rules discarded 11 transitions
Iterating global reduction 7 with 11 rules applied. Total rules applied 70 place count 119 transition count 252
Discarding 1 places :
Symmetric choice reduction at 7 with 1 rule applications. Total rules 71 place count 118 transition count 250
Iterating global reduction 7 with 1 rules applied. Total rules applied 72 place count 118 transition count 250
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 73 place count 118 transition count 249
Free-agglomeration rule applied 3 times.
Iterating global reduction 8 with 3 rules applied. Total rules applied 76 place count 118 transition count 246
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 8 with 4 rules applied. Total rules applied 80 place count 115 transition count 245
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 9 with 2 rules applied. Total rules applied 82 place count 115 transition count 243
Partial Post-agglomeration rule applied 2 times.
Drop transitions (Partial Post agglomeration) removed 2 transitions
Iterating global reduction 9 with 2 rules applied. Total rules applied 84 place count 115 transition count 243
Applied a total of 84 rules in 51 ms. Remains 115 /151 variables (removed 36) and now considering 243/311 (removed 68) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 115/151 places, 243/311 transitions.
RANDOM walk for 40000 steps (2648 resets) in 122 ms. (325 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (651 resets) in 72 ms. (548 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (543 resets) in 44 ms. (888 steps per ms) remains 2/2 properties
Interrupted probabilistic random walk after 2248861 steps, run timeout after 3001 ms. (steps per millisecond=749 ) properties seen :1 out of 2
Probabilistic random walk after 2248861 steps, saw 464186 distinct states, run finished after 3008 ms. (steps per millisecond=747 ) properties seen :1
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-09 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
[2025-05-30 05:29:46] [INFO ] Flow matrix only has 234 transitions (discarded 9 similar events)
// Phase 1: matrix 234 rows 115 cols
[2025-05-30 05:29:46] [INFO ] Computed 3 invariants in 1 ms
[2025-05-30 05:29:46] [INFO ] State equation strengthened by 4 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/22 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 57/79 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 18/97 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/97 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 216/313 variables, 97/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/313 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 28/341 variables, 14/114 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/341 variables, 4/118 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/341 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 6/347 variables, 2/120 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/347 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 2/349 variables, 2/122 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/349 variables, 0/122 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/349 variables, 0/122 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 349/349 variables, and 122 constraints, problems are : Problem set: 0 solved, 1 unsolved in 133 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 115/115 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/22 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 57/79 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 18/97 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/97 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 216/313 variables, 97/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/313 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 28/341 variables, 14/114 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/341 variables, 4/118 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/341 variables, 1/119 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/341 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 6/347 variables, 2/121 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/347 variables, 0/121 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/349 variables, 2/123 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/349 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/349 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 349/349 variables, and 123 constraints, problems are : Problem set: 0 solved, 1 unsolved in 255 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 115/115 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 399ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 14 ms.
Support contains 22 out of 115 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 115/115 places, 243/243 transitions.
Graph (trivial) has 44 edges and 115 vertex of which 10 / 115 are part of one of the 5 SCC in 0 ms
Free SCC test removed 5 places
Drop transitions (Empty/Sink Transition effects.) removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 6 rules applied. Total rules applied 7 place count 110 transition count 226
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 13 place count 104 transition count 226
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 13 place count 104 transition count 225
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 15 place count 103 transition count 225
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 16 place count 102 transition count 222
Iterating global reduction 2 with 1 rules applied. Total rules applied 17 place count 102 transition count 222
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 18 place count 101 transition count 221
Iterating global reduction 2 with 1 rules applied. Total rules applied 19 place count 101 transition count 221
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 21 place count 101 transition count 219
Performed 4 Post agglomeration using F-continuation condition with reduction of 1 identical transitions.
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 29 place count 97 transition count 214
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 3 with 6 rules applied. Total rules applied 35 place count 97 transition count 208
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: -11
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 39 place count 95 transition count 219
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 4 with 7 rules applied. Total rules applied 46 place count 95 transition count 212
Discarding 2 places :
Symmetric choice reduction at 5 with 2 rule applications. Total rules 48 place count 93 transition count 206
Iterating global reduction 5 with 2 rules applied. Total rules applied 50 place count 93 transition count 206
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 51 place count 93 transition count 205
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 52 place count 92 transition count 204
Iterating global reduction 6 with 1 rules applied. Total rules applied 53 place count 92 transition count 204
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 6 with 4 rules applied. Total rules applied 57 place count 92 transition count 200
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 7 with 3 rules applied. Total rules applied 60 place count 92 transition count 197
Free-agglomeration rule applied 3 times.
Iterating global reduction 7 with 3 rules applied. Total rules applied 63 place count 92 transition count 194
Reduce places removed 3 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 7 with 5 rules applied. Total rules applied 68 place count 89 transition count 192
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 8 with 2 rules applied. Total rules applied 70 place count 89 transition count 192
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 71 place count 89 transition count 191
Applied a total of 71 rules in 42 ms. Remains 89 /115 variables (removed 26) and now considering 191/243 (removed 52) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 42 ms. Remains : 89/115 places, 191/243 transitions.
RANDOM walk for 40000 steps (398 resets) in 109 ms. (363 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 85 ms. (465 steps per ms) remains 1/1 properties
Probably explored full state space saw : 163081 states, properties seen :0
Probabilistic random walk after 806003 steps, saw 163081 distinct states, run finished after 861 ms. (steps per millisecond=936 ) properties seen :0
Explored full state space saw : 163081 states, properties seen :0
Exhaustive walk after 806003 steps, saw 163081 distinct states, run finished after 697 ms. (steps per millisecond=1156 ) properties seen :0
FORMULA CloudReconfiguration-PT-302-ReachabilityFireability-2025-04 TRUE TECHNIQUES TOPOLOGICAL EXHAUSTIVE_WALK
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 21068 ms.

BK_STOP 1748582989130

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

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

Sequence of Actions to be Executed by the VM

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

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="CloudReconfiguration-PT-302"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is CloudReconfiguration-PT-302, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r044-tall-174854028000223"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-302.tgz
mv CloudReconfiguration-PT-302 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;