./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:24:37,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:24:37,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:24:37,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:24:37,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:24:37,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:24:37,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:24:37,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:24:37,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:24:37,547 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:24:37,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:24:37,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:24:37,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:24:37,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:24:37,548 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:24:37,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:24:37,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:24:37,548 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:24:37,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:24:37,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:24:37,549 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:24:37,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:24:37,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:24:37,550 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:24:37,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:24:37,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:24:37,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:24:37,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:24:37,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:24:37,550 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 [2025-03-04 15:24:37,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:24:37,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:24:37,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:24:37,784 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:24:37,784 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:24:37,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2025-03-04 15:24:38,934 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a159e8ea/eae3e35ff4ea4a24b0ee6366cca7a475/FLAGb310910c8 [2025-03-04 15:24:39,146 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:24:39,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2025-03-04 15:24:39,159 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a159e8ea/eae3e35ff4ea4a24b0ee6366cca7a475/FLAGb310910c8 [2025-03-04 15:24:39,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a159e8ea/eae3e35ff4ea4a24b0ee6366cca7a475 [2025-03-04 15:24:39,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:24:39,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:24:39,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:24:39,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:24:39,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:24:39,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a11529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39, skipping insertion in model container [2025-03-04 15:24:39,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:24:39,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:24:39,622 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:24:39,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:24:39,656 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:24:39,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39 WrapperNode [2025-03-04 15:24:39,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:24:39,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:24:39,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:24:39,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:24:39,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,695 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 171 [2025-03-04 15:24:39,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:24:39,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:24:39,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:24:39,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:24:39,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,723 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 15:24:39,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,728 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:24:39,742 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:24:39,743 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:24:39,744 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:24:39,744 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (1/1) ... [2025-03-04 15:24:39,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:24:39,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:24:39,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 15:24:39,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 15:24:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:24:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 15:24:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 15:24:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 15:24:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 15:24:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:24:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:24:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:24:39,795 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:24:39,852 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:24:39,854 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:24:40,080 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:24:40,080 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:24:40,205 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:24:40,205 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:24:40,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:24:40 BoogieIcfgContainer [2025-03-04 15:24:40,206 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:24:40,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:24:40,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:24:40,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:24:40,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:24:39" (1/3) ... [2025-03-04 15:24:40,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3065728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:24:40, skipping insertion in model container [2025-03-04 15:24:40,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:39" (2/3) ... [2025-03-04 15:24:40,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3065728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:24:40, skipping insertion in model container [2025-03-04 15:24:40,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:24:40" (3/3) ... [2025-03-04 15:24:40,214 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2025-03-04 15:24:40,224 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:24:40,226 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-symm.wvr.c that has 3 procedures, 61 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-03-04 15:24:40,226 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:24:40,279 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 15:24:40,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 72 transitions, 158 flow [2025-03-04 15:24:40,351 INFO L124 PetriNetUnfolderBase]: 12/70 cut-off events. [2025-03-04 15:24:40,353 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 15:24:40,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 70 events. 12/70 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2025-03-04 15:24:40,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 72 transitions, 158 flow [2025-03-04 15:24:40,361 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 68 transitions, 145 flow [2025-03-04 15:24:40,368 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:24:40,379 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5419ffd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:24:40,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-04 15:24:40,388 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:24:40,389 INFO L124 PetriNetUnfolderBase]: 6/34 cut-off events. [2025-03-04 15:24:40,389 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:24:40,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:40,389 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:40,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:40,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:40,394 INFO L85 PathProgramCache]: Analyzing trace with hash -348437338, now seen corresponding path program 1 times [2025-03-04 15:24:40,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:40,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463159122] [2025-03-04 15:24:40,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:40,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:40,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:24:40,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:24:40,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:40,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:40,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:40,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463159122] [2025-03-04 15:24:40,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463159122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:40,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:40,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:40,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305410782] [2025-03-04 15:24:40,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:40,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:40,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:40,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:40,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:40,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-04 15:24:40,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:40,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:40,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-04 15:24:40,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:40,966 INFO L124 PetriNetUnfolderBase]: 775/1531 cut-off events. [2025-03-04 15:24:40,966 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-03-04 15:24:40,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2754 conditions, 1531 events. 775/1531 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10496 event pairs, 282 based on Foata normal form. 48/1246 useless extension candidates. Maximal degree in co-relation 2685. Up to 647 conditions per place. [2025-03-04 15:24:40,982 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 60 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2025-03-04 15:24:40,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 99 transitions, 343 flow [2025-03-04 15:24:40,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:40,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2025-03-04 15:24:40,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2025-03-04 15:24:40,996 INFO L175 Difference]: Start difference. First operand has 63 places, 68 transitions, 145 flow. Second operand 4 states and 212 transitions. [2025-03-04 15:24:40,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 99 transitions, 343 flow [2025-03-04 15:24:41,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 99 transitions, 336 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:41,005 INFO L231 Difference]: Finished difference. Result has 65 places, 70 transitions, 174 flow [2025-03-04 15:24:41,009 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2025-03-04 15:24:41,011 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 2 predicate places. [2025-03-04 15:24:41,011 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 174 flow [2025-03-04 15:24:41,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:41,011 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:41,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:24:41,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:41,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2083344870, now seen corresponding path program 1 times [2025-03-04 15:24:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:41,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631054882] [2025-03-04 15:24:41,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:41,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:41,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:24:41,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:24:41,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:41,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:41,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:41,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631054882] [2025-03-04 15:24:41,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631054882] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:41,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:41,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:41,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264210430] [2025-03-04 15:24:41,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:41,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:41,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:41,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:41,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:41,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2025-03-04 15:24:41,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:41,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2025-03-04 15:24:41,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:41,287 INFO L124 PetriNetUnfolderBase]: 591/1348 cut-off events. [2025-03-04 15:24:41,287 INFO L125 PetriNetUnfolderBase]: For 307/309 co-relation queries the response was YES. [2025-03-04 15:24:41,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 1348 events. 591/1348 cut-off events. For 307/309 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9734 event pairs, 177 based on Foata normal form. 2/1140 useless extension candidates. Maximal degree in co-relation 1872. Up to 469 conditions per place. [2025-03-04 15:24:41,295 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 41 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2025-03-04 15:24:41,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 83 transitions, 292 flow [2025-03-04 15:24:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:41,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2025-03-04 15:24:41,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2025-03-04 15:24:41,299 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 174 flow. Second operand 4 states and 200 transitions. [2025-03-04 15:24:41,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 83 transitions, 292 flow [2025-03-04 15:24:41,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 83 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:24:41,304 INFO L231 Difference]: Finished difference. Result has 67 places, 69 transitions, 180 flow [2025-03-04 15:24:41,305 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=67, PETRI_TRANSITIONS=69} [2025-03-04 15:24:41,305 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2025-03-04 15:24:41,305 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 69 transitions, 180 flow [2025-03-04 15:24:41,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,306 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:41,306 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:41,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:24:41,306 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:41,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 159151242, now seen corresponding path program 1 times [2025-03-04 15:24:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:41,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287192174] [2025-03-04 15:24:41,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:41,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:24:41,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:24:41,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:41,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:41,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:41,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287192174] [2025-03-04 15:24:41,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287192174] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:41,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:41,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:41,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810941003] [2025-03-04 15:24:41,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:41,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:41,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:41,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:41,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:41,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2025-03-04 15:24:41,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:41,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2025-03-04 15:24:41,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:41,559 INFO L124 PetriNetUnfolderBase]: 593/1328 cut-off events. [2025-03-04 15:24:41,559 INFO L125 PetriNetUnfolderBase]: For 567/569 co-relation queries the response was YES. [2025-03-04 15:24:41,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2651 conditions, 1328 events. 593/1328 cut-off events. For 567/569 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9467 event pairs, 177 based on Foata normal form. 26/1144 useless extension candidates. Maximal degree in co-relation 1924. Up to 493 conditions per place. [2025-03-04 15:24:41,568 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 42 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2025-03-04 15:24:41,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 82 transitions, 298 flow [2025-03-04 15:24:41,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:41,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:41,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2025-03-04 15:24:41,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2025-03-04 15:24:41,571 INFO L175 Difference]: Start difference. First operand has 67 places, 69 transitions, 180 flow. Second operand 4 states and 196 transitions. [2025-03-04 15:24:41,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 82 transitions, 298 flow [2025-03-04 15:24:41,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 82 transitions, 290 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:41,574 INFO L231 Difference]: Finished difference. Result has 66 places, 68 transitions, 176 flow [2025-03-04 15:24:41,574 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=66, PETRI_TRANSITIONS=68} [2025-03-04 15:24:41,574 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2025-03-04 15:24:41,575 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 68 transitions, 176 flow [2025-03-04 15:24:41,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:41,575 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:41,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:24:41,575 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:41,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:41,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1586123623, now seen corresponding path program 1 times [2025-03-04 15:24:41,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:41,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099392299] [2025-03-04 15:24:41,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:41,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:41,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:24:41,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:24:41,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:41,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:41,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099392299] [2025-03-04 15:24:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099392299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:41,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:41,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:41,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604701990] [2025-03-04 15:24:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:41,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:41,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:41,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:41,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:41,661 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-04 15:24:41,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 68 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:41,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-04 15:24:41,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:41,823 INFO L124 PetriNetUnfolderBase]: 914/1865 cut-off events. [2025-03-04 15:24:41,823 INFO L125 PetriNetUnfolderBase]: For 755/790 co-relation queries the response was YES. [2025-03-04 15:24:41,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3753 conditions, 1865 events. 914/1865 cut-off events. For 755/790 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 13453 event pairs, 356 based on Foata normal form. 89/1605 useless extension candidates. Maximal degree in co-relation 2214. Up to 788 conditions per place. [2025-03-04 15:24:41,832 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 64 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2025-03-04 15:24:41,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 430 flow [2025-03-04 15:24:41,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:41,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:41,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2025-03-04 15:24:41,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2025-03-04 15:24:41,833 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 176 flow. Second operand 4 states and 210 transitions. [2025-03-04 15:24:41,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 430 flow [2025-03-04 15:24:41,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 101 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:41,836 INFO L231 Difference]: Finished difference. Result has 68 places, 70 transitions, 202 flow [2025-03-04 15:24:41,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2025-03-04 15:24:41,837 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 5 predicate places. [2025-03-04 15:24:41,837 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 202 flow [2025-03-04 15:24:41,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:41,837 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:41,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:24:41,837 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:41,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:41,838 INFO L85 PathProgramCache]: Analyzing trace with hash 638721673, now seen corresponding path program 1 times [2025-03-04 15:24:41,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:41,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529924380] [2025-03-04 15:24:41,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:41,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:41,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:24:41,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:24:41,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:41,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:41,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:41,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529924380] [2025-03-04 15:24:41,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529924380] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:41,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:41,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:41,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158056665] [2025-03-04 15:24:41,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:41,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:41,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:41,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:41,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:41,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-04 15:24:41,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:41,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-04 15:24:41,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:42,079 INFO L124 PetriNetUnfolderBase]: 761/1764 cut-off events. [2025-03-04 15:24:42,080 INFO L125 PetriNetUnfolderBase]: For 765/798 co-relation queries the response was YES. [2025-03-04 15:24:42,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3628 conditions, 1764 events. 761/1764 cut-off events. For 765/798 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 13360 event pairs, 363 based on Foata normal form. 46/1546 useless extension candidates. Maximal degree in co-relation 2274. Up to 771 conditions per place. [2025-03-04 15:24:42,088 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 64 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2025-03-04 15:24:42,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 102 transitions, 438 flow [2025-03-04 15:24:42,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:42,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 207 transitions. [2025-03-04 15:24:42,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2025-03-04 15:24:42,089 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 202 flow. Second operand 4 states and 207 transitions. [2025-03-04 15:24:42,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 102 transitions, 438 flow [2025-03-04 15:24:42,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 102 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:24:42,093 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 201 flow [2025-03-04 15:24:42,093 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2025-03-04 15:24:42,093 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-04 15:24:42,093 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 201 flow [2025-03-04 15:24:42,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:42,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:42,093 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:42,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:24:42,094 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:42,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash 638720680, now seen corresponding path program 1 times [2025-03-04 15:24:42,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:42,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401869239] [2025-03-04 15:24:42,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:42,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:42,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:24:42,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:24:42,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:42,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:42,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:42,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401869239] [2025-03-04 15:24:42,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401869239] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:42,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:42,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:42,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416762510] [2025-03-04 15:24:42,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:42,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:42,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:42,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:42,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:42,241 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2025-03-04 15:24:42,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:42,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:42,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2025-03-04 15:24:42,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:42,426 INFO L124 PetriNetUnfolderBase]: 894/1801 cut-off events. [2025-03-04 15:24:42,426 INFO L125 PetriNetUnfolderBase]: For 672/723 co-relation queries the response was YES. [2025-03-04 15:24:42,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3990 conditions, 1801 events. 894/1801 cut-off events. For 672/723 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 12892 event pairs, 211 based on Foata normal form. 26/1657 useless extension candidates. Maximal degree in co-relation 2939. Up to 685 conditions per place. [2025-03-04 15:24:42,436 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 62 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2025-03-04 15:24:42,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 100 transitions, 439 flow [2025-03-04 15:24:42,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:24:42,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:24:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2025-03-04 15:24:42,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6861111111111111 [2025-03-04 15:24:42,437 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 201 flow. Second operand 5 states and 247 transitions. [2025-03-04 15:24:42,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 100 transitions, 439 flow [2025-03-04 15:24:42,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 100 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:24:42,468 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 205 flow [2025-03-04 15:24:42,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2025-03-04 15:24:42,469 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 8 predicate places. [2025-03-04 15:24:42,469 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 205 flow [2025-03-04 15:24:42,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:42,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:42,469 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:42,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:24:42,469 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:42,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:42,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1925191566, now seen corresponding path program 1 times [2025-03-04 15:24:42,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:42,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331629797] [2025-03-04 15:24:42,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:42,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:42,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:24:42,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:24:42,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:42,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:42,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:42,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331629797] [2025-03-04 15:24:42,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331629797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:42,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:42,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:42,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045868252] [2025-03-04 15:24:42,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:42,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:42,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:42,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:42,524 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2025-03-04 15:24:42,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:42,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:42,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2025-03-04 15:24:42,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:42,668 INFO L124 PetriNetUnfolderBase]: 716/1661 cut-off events. [2025-03-04 15:24:42,668 INFO L125 PetriNetUnfolderBase]: For 973/999 co-relation queries the response was YES. [2025-03-04 15:24:42,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3461 conditions, 1661 events. 716/1661 cut-off events. For 973/999 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 12437 event pairs, 225 based on Foata normal form. 26/1474 useless extension candidates. Maximal degree in co-relation 2129. Up to 524 conditions per place. [2025-03-04 15:24:42,676 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 44 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2025-03-04 15:24:42,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 82 transitions, 354 flow [2025-03-04 15:24:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:42,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:42,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2025-03-04 15:24:42,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6909722222222222 [2025-03-04 15:24:42,677 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 205 flow. Second operand 4 states and 199 transitions. [2025-03-04 15:24:42,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 82 transitions, 354 flow [2025-03-04 15:24:42,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 82 transitions, 339 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:42,681 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 202 flow [2025-03-04 15:24:42,681 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2025-03-04 15:24:42,681 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-04 15:24:42,681 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 202 flow [2025-03-04 15:24:42,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:42,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:42,682 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:42,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:24:42,682 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:42,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:42,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1674494931, now seen corresponding path program 1 times [2025-03-04 15:24:42,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:42,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820712159] [2025-03-04 15:24:42,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:42,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:42,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:24:42,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:24:42,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:42,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:42,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:42,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:42,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820712159] [2025-03-04 15:24:42,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820712159] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:42,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:42,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:24:42,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062374237] [2025-03-04 15:24:42,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:42,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:24:42,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:42,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:24:42,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:24:42,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2025-03-04 15:24:42,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:42,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:42,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2025-03-04 15:24:42,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:43,032 INFO L124 PetriNetUnfolderBase]: 894/1765 cut-off events. [2025-03-04 15:24:43,032 INFO L125 PetriNetUnfolderBase]: For 1108/1160 co-relation queries the response was YES. [2025-03-04 15:24:43,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 1765 events. 894/1765 cut-off events. For 1108/1160 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 12417 event pairs, 210 based on Foata normal form. 83/1678 useless extension candidates. Maximal degree in co-relation 2932. Up to 481 conditions per place. [2025-03-04 15:24:43,041 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 75 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2025-03-04 15:24:43,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 544 flow [2025-03-04 15:24:43,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 279 transitions. [2025-03-04 15:24:43,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2025-03-04 15:24:43,045 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 202 flow. Second operand 6 states and 279 transitions. [2025-03-04 15:24:43,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 544 flow [2025-03-04 15:24:43,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 115 transitions, 518 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:43,049 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 219 flow [2025-03-04 15:24:43,049 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2025-03-04 15:24:43,050 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2025-03-04 15:24:43,050 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 219 flow [2025-03-04 15:24:43,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:43,050 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:43,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 15:24:43,050 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:43,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash 448573341, now seen corresponding path program 1 times [2025-03-04 15:24:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:43,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645751678] [2025-03-04 15:24:43,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:43,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:43,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:24:43,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:24:43,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:43,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645751678] [2025-03-04 15:24:43,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645751678] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:43,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603778035] [2025-03-04 15:24:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:43,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:43,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:43,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:43,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:43,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2025-03-04 15:24:43,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:43,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2025-03-04 15:24:43,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:43,246 INFO L124 PetriNetUnfolderBase]: 717/1621 cut-off events. [2025-03-04 15:24:43,246 INFO L125 PetriNetUnfolderBase]: For 1629/1709 co-relation queries the response was YES. [2025-03-04 15:24:43,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3649 conditions, 1621 events. 717/1621 cut-off events. For 1629/1709 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11895 event pairs, 226 based on Foata normal form. 93/1516 useless extension candidates. Maximal degree in co-relation 2234. Up to 551 conditions per place. [2025-03-04 15:24:43,256 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 47 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2025-03-04 15:24:43,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 82 transitions, 385 flow [2025-03-04 15:24:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2025-03-04 15:24:43,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2025-03-04 15:24:43,258 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 219 flow. Second operand 4 states and 195 transitions. [2025-03-04 15:24:43,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 82 transitions, 385 flow [2025-03-04 15:24:43,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 82 transitions, 363 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:24:43,261 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 210 flow [2025-03-04 15:24:43,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2025-03-04 15:24:43,262 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-04 15:24:43,262 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 210 flow [2025-03-04 15:24:43,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:43,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:43,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 15:24:43,262 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:43,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:43,265 INFO L85 PathProgramCache]: Analyzing trace with hash 548954095, now seen corresponding path program 1 times [2025-03-04 15:24:43,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:43,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482101887] [2025-03-04 15:24:43,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:43,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:43,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:24:43,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:24:43,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:43,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:43,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:43,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482101887] [2025-03-04 15:24:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482101887] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:43,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:43,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46183389] [2025-03-04 15:24:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:43,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:43,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:43,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:43,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:43,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-04 15:24:43,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:43,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-04 15:24:43,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:43,478 INFO L124 PetriNetUnfolderBase]: 899/1775 cut-off events. [2025-03-04 15:24:43,479 INFO L125 PetriNetUnfolderBase]: For 1504/1549 co-relation queries the response was YES. [2025-03-04 15:24:43,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4136 conditions, 1775 events. 899/1775 cut-off events. For 1504/1549 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 12431 event pairs, 360 based on Foata normal form. 73/1648 useless extension candidates. Maximal degree in co-relation 2559. Up to 793 conditions per place. [2025-03-04 15:24:43,485 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 63 selfloop transitions, 5 changer transitions 0/98 dead transitions. [2025-03-04 15:24:43,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 98 transitions, 461 flow [2025-03-04 15:24:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2025-03-04 15:24:43,487 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7118055555555556 [2025-03-04 15:24:43,487 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 210 flow. Second operand 4 states and 205 transitions. [2025-03-04 15:24:43,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 98 transitions, 461 flow [2025-03-04 15:24:43,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 98 transitions, 438 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:24:43,489 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 212 flow [2025-03-04 15:24:43,489 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2025-03-04 15:24:43,490 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 6 predicate places. [2025-03-04 15:24:43,490 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 212 flow [2025-03-04 15:24:43,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:43,490 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:43,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 15:24:43,490 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:43,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1020871188, now seen corresponding path program 1 times [2025-03-04 15:24:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:43,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158181246] [2025-03-04 15:24:43,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:43,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:43,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:24:43,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:24:43,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:43,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:43,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:43,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:43,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158181246] [2025-03-04 15:24:43,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158181246] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:43,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:43,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:43,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303610245] [2025-03-04 15:24:43,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:43,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:43,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:43,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:43,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:43,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2025-03-04 15:24:43,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:43,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2025-03-04 15:24:43,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:43,791 INFO L124 PetriNetUnfolderBase]: 999/1903 cut-off events. [2025-03-04 15:24:43,791 INFO L125 PetriNetUnfolderBase]: For 1767/1863 co-relation queries the response was YES. [2025-03-04 15:24:43,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4629 conditions, 1903 events. 999/1903 cut-off events. For 1767/1863 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 12919 event pairs, 244 based on Foata normal form. 96/1843 useless extension candidates. Maximal degree in co-relation 3647. Up to 713 conditions per place. [2025-03-04 15:24:43,799 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 66 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2025-03-04 15:24:43,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 99 transitions, 498 flow [2025-03-04 15:24:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:24:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:24:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 245 transitions. [2025-03-04 15:24:43,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2025-03-04 15:24:43,800 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 212 flow. Second operand 5 states and 245 transitions. [2025-03-04 15:24:43,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 99 transitions, 498 flow [2025-03-04 15:24:43,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:24:43,803 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 218 flow [2025-03-04 15:24:43,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2025-03-04 15:24:43,804 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 8 predicate places. [2025-03-04 15:24:43,804 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 218 flow [2025-03-04 15:24:43,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,804 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:43,804 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:43,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 15:24:43,805 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:43,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:43,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1020872181, now seen corresponding path program 1 times [2025-03-04 15:24:43,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:43,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093155591] [2025-03-04 15:24:43,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:43,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:43,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:24:43,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:24:43,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:43,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:43,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:43,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093155591] [2025-03-04 15:24:43,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093155591] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:43,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:43,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:43,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465601748] [2025-03-04 15:24:43,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:43,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:43,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:43,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:43,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:43,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-04 15:24:43,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:43,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-04 15:24:43,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:44,020 INFO L124 PetriNetUnfolderBase]: 829/1743 cut-off events. [2025-03-04 15:24:44,020 INFO L125 PetriNetUnfolderBase]: For 1697/1773 co-relation queries the response was YES. [2025-03-04 15:24:44,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4117 conditions, 1743 events. 829/1743 cut-off events. For 1697/1773 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12461 event pairs, 408 based on Foata normal form. 105/1692 useless extension candidates. Maximal degree in co-relation 3265. Up to 852 conditions per place. [2025-03-04 15:24:44,028 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 68 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2025-03-04 15:24:44,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 99 transitions, 494 flow [2025-03-04 15:24:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2025-03-04 15:24:44,029 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7118055555555556 [2025-03-04 15:24:44,029 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 218 flow. Second operand 4 states and 205 transitions. [2025-03-04 15:24:44,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 99 transitions, 494 flow [2025-03-04 15:24:44,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 99 transitions, 482 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:24:44,032 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 208 flow [2025-03-04 15:24:44,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2025-03-04 15:24:44,032 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-04 15:24:44,032 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 208 flow [2025-03-04 15:24:44,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:44,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:44,033 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:44,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 15:24:44,033 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:44,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:44,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1582236256, now seen corresponding path program 1 times [2025-03-04 15:24:44,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:44,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336835706] [2025-03-04 15:24:44,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:44,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:44,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:24:44,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:24:44,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:44,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:44,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:44,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336835706] [2025-03-04 15:24:44,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336835706] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:44,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:44,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:24:44,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614426365] [2025-03-04 15:24:44,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:44,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:24:44,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:44,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:24:44,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:24:44,120 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2025-03-04 15:24:44,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:44,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:44,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2025-03-04 15:24:44,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:44,311 INFO L124 PetriNetUnfolderBase]: 970/1845 cut-off events. [2025-03-04 15:24:44,312 INFO L125 PetriNetUnfolderBase]: For 1691/1787 co-relation queries the response was YES. [2025-03-04 15:24:44,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4485 conditions, 1845 events. 970/1845 cut-off events. For 1691/1787 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 12469 event pairs, 244 based on Foata normal form. 154/1843 useless extension candidates. Maximal degree in co-relation 3546. Up to 547 conditions per place. [2025-03-04 15:24:44,318 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 80 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2025-03-04 15:24:44,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 590 flow [2025-03-04 15:24:44,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2025-03-04 15:24:44,320 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2025-03-04 15:24:44,320 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 208 flow. Second operand 6 states and 276 transitions. [2025-03-04 15:24:44,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 590 flow [2025-03-04 15:24:44,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 115 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:24:44,324 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 227 flow [2025-03-04 15:24:44,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=227, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2025-03-04 15:24:44,324 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 10 predicate places. [2025-03-04 15:24:44,324 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 227 flow [2025-03-04 15:24:44,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:44,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:44,325 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:44,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 15:24:44,325 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:24:44,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1571594181, now seen corresponding path program 1 times [2025-03-04 15:24:44,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685237412] [2025-03-04 15:24:44,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:44,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 15:24:44,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 15:24:44,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:44,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:44,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:44,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685237412] [2025-03-04 15:24:44,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685237412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:44,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:44,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:24:44,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218943885] [2025-03-04 15:24:44,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:44,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:44,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:44,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:44,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:44,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2025-03-04 15:24:44,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:44,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:44,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2025-03-04 15:24:44,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:44,645 INFO L124 PetriNetUnfolderBase]: 970/1770 cut-off events. [2025-03-04 15:24:44,645 INFO L125 PetriNetUnfolderBase]: For 2055/2149 co-relation queries the response was YES. [2025-03-04 15:24:44,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4677 conditions, 1770 events. 970/1770 cut-off events. For 2055/2149 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 11597 event pairs, 408 based on Foata normal form. 123/1791 useless extension candidates. Maximal degree in co-relation 3703. Up to 881 conditions per place. [2025-03-04 15:24:44,650 INFO L140 encePairwiseOnDemand]: 65/72 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2025-03-04 15:24:44,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 133 transitions, 719 flow [2025-03-04 15:24:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 294 transitions. [2025-03-04 15:24:44,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2025-03-04 15:24:44,652 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 227 flow. Second operand 6 states and 294 transitions. [2025-03-04 15:24:44,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 133 transitions, 719 flow [2025-03-04 15:24:44,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 701 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-04 15:24:44,658 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2025-03-04 15:24:44,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2025-03-04 15:24:44,659 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2025-03-04 15:24:44,660 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2025-03-04 15:24:44,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:44,664 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2025-03-04 15:24:44,664 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2025-03-04 15:24:44,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2025-03-04 15:24:44,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2025-03-04 15:24:44,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2025-03-04 15:24:44,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2025-03-04 15:24:44,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2025-03-04 15:24:44,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 15:24:44,666 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:44,670 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:24:44,670 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:24:44,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:24:44 BasicIcfg [2025-03-04 15:24:44,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:24:44,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:24:44,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:24:44,678 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:24:44,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:24:40" (3/4) ... [2025-03-04 15:24:44,679 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:24:44,681 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-04 15:24:44,681 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-04 15:24:44,686 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2025-03-04 15:24:44,686 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-03-04 15:24:44,687 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-04 15:24:44,687 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 15:24:44,687 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 15:24:44,746 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:24:44,746 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:24:44,746 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:24:44,747 INFO L158 Benchmark]: Toolchain (without parser) took 5266.16ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 113.6MB in the beginning and 85.6MB in the end (delta: 28.0MB). Peak memory consumption was 118.8MB. Max. memory is 16.1GB. [2025-03-04 15:24:44,747 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 201.3MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:24:44,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.13ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 101.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:24:44,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.71ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:24:44,748 INFO L158 Benchmark]: Boogie Preprocessor took 45.16ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:24:44,749 INFO L158 Benchmark]: IcfgBuilder took 463.70ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 54.8MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-04 15:24:44,749 INFO L158 Benchmark]: TraceAbstraction took 4469.67ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 54.3MB in the beginning and 90.4MB in the end (delta: -36.1MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2025-03-04 15:24:44,749 INFO L158 Benchmark]: Witness Printer took 68.50ms. Allocated memory is still 234.9MB. Free memory was 90.4MB in the beginning and 85.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:24:44,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 201.3MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.13ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 101.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.71ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.16ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 463.70ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 54.8MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4469.67ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 54.3MB in the beginning and 90.4MB in the end (delta: -36.1MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * Witness Printer took 68.50ms. Allocated memory is still 234.9MB. Free memory was 90.4MB in the beginning and 85.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 115 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1070 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 869 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2051 IncrementalHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 58 mSDtfsCounter, 2051 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=13, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 15:24:44,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE