./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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-exp-term-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 a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:37:54,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:37:54,712 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:37:54,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:37:54,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:37:54,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:37:54,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:37:54,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:37:54,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:37:54,733 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:37:54,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:37:54,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:37:54,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:37:54,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:37:54,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:37:54,735 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:37:54,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:37:54,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:37:54,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:37:54,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:37:54,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:37:54,736 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 -> a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb [2025-03-09 06:37:54,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:37:54,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:37:54,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:37:54,955 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:37:54,955 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:37:54,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2025-03-09 06:37:56,060 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec32d3b16/39da7f476e9047d0a4130e8681724da2/FLAG012d49653 [2025-03-09 06:37:56,275 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:37:56,276 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2025-03-09 06:37:56,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec32d3b16/39da7f476e9047d0a4130e8681724da2/FLAG012d49653 [2025-03-09 06:37:56,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec32d3b16/39da7f476e9047d0a4130e8681724da2 [2025-03-09 06:37:56,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:37:56,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:37:56,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:37:56,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:37:56,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:37:56,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5749fb1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56, skipping insertion in model container [2025-03-09 06:37:56,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:37:56,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:37:56,776 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:37:56,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:37:56,807 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:37:56,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56 WrapperNode [2025-03-09 06:37:56,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:37:56,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:37:56,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:37:56,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:37:56,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,842 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 153 [2025-03-09 06:37:56,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:37:56,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:37:56,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:37:56,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:37:56,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,866 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]. [2025-03-09 06:37:56,869 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,873 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:37:56,882 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:37:56,882 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:37:56,882 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:37:56,883 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (1/1) ... [2025-03-09 06:37:56,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:37:56,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:56,917 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) [2025-03-09 06:37:56,923 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 [2025-03-09 06:37:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:37:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:37:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:37:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:37:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:37:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:37:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:37:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:37:56,940 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:37:57,014 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:37:57,015 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:37:57,220 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:37:57,220 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:37:57,368 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:37:57,369 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:37:57,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:37:57 BoogieIcfgContainer [2025-03-09 06:37:57,369 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:37:57,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:37:57,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:37:57,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:37:57,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:37:56" (1/3) ... [2025-03-09 06:37:57,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6588d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:37:57, skipping insertion in model container [2025-03-09 06:37:57,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:56" (2/3) ... [2025-03-09 06:37:57,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6588d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:37:57, skipping insertion in model container [2025-03-09 06:37:57,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:37:57" (3/3) ... [2025-03-09 06:37:57,377 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2025-03-09 06:37:57,388 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:37:57,389 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-exp-term-symm.wvr.c that has 3 procedures, 57 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-03-09 06:37:57,390 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:37:57,443 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 06:37:57,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 66 transitions, 146 flow [2025-03-09 06:37:57,503 INFO L124 PetriNetUnfolderBase]: 10/64 cut-off events. [2025-03-09 06:37:57,506 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-09 06:37:57,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 64 events. 10/64 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 204 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2025-03-09 06:37:57,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 66 transitions, 146 flow [2025-03-09 06:37:57,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 62 transitions, 133 flow [2025-03-09 06:37:57,519 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:37:57,541 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;@546631cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:37:57,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-09 06:37:57,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:37:57,551 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2025-03-09 06:37:57,552 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:37:57,552 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:57,553 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:57,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:57,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:57,558 INFO L85 PathProgramCache]: Analyzing trace with hash -2100681985, now seen corresponding path program 1 times [2025-03-09 06:37:57,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:57,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517046575] [2025-03-09 06:37:57,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:57,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:57,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:37:57,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:37:57,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:57,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:57,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:57,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517046575] [2025-03-09 06:37:57,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517046575] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:57,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:57,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:57,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373699701] [2025-03-09 06:37:57,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:57,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:57,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:57,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:57,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2025-03-09 06:37:57,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2025-03-09 06:37:57,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:57,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2025-03-09 06:37:57,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:58,098 INFO L124 PetriNetUnfolderBase]: 670/1329 cut-off events. [2025-03-09 06:37:58,098 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-03-09 06:37:58,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2399 conditions, 1329 events. 670/1329 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8809 event pairs, 227 based on Foata normal form. 44/1091 useless extension candidates. Maximal degree in co-relation 2335. Up to 539 conditions per place. [2025-03-09 06:37:58,109 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 56 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2025-03-09 06:37:58,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 319 flow [2025-03-09 06:37:58,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:58,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2025-03-09 06:37:58,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2025-03-09 06:37:58,123 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 133 flow. Second operand 4 states and 192 transitions. [2025-03-09 06:37:58,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 319 flow [2025-03-09 06:37:58,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 91 transitions, 312 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:37:58,157 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 162 flow [2025-03-09 06:37:58,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2025-03-09 06:37:58,164 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2025-03-09 06:37:58,164 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 162 flow [2025-03-09 06:37:58,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2025-03-09 06:37:58,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:58,165 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:58,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:37:58,165 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:58,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:58,166 INFO L85 PathProgramCache]: Analyzing trace with hash -696631678, now seen corresponding path program 1 times [2025-03-09 06:37:58,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:58,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522048694] [2025-03-09 06:37:58,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:58,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:58,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:37:58,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:37:58,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:58,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:58,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:58,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522048694] [2025-03-09 06:37:58,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522048694] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:58,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:58,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:37:58,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341609248] [2025-03-09 06:37:58,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:58,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:58,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:58,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:58,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:58,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 66 [2025-03-09 06:37:58,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-09 06:37:58,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:58,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 66 [2025-03-09 06:37:58,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:58,397 INFO L124 PetriNetUnfolderBase]: 505/1161 cut-off events. [2025-03-09 06:37:58,397 INFO L125 PetriNetUnfolderBase]: For 281/283 co-relation queries the response was YES. [2025-03-09 06:37:58,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2251 conditions, 1161 events. 505/1161 cut-off events. For 281/283 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8102 event pairs, 134 based on Foata normal form. 2/992 useless extension candidates. Maximal degree in co-relation 1665. Up to 432 conditions per place. [2025-03-09 06:37:58,403 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 38 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2025-03-09 06:37:58,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 272 flow [2025-03-09 06:37:58,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 181 transitions. [2025-03-09 06:37:58,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6856060606060606 [2025-03-09 06:37:58,405 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 162 flow. Second operand 4 states and 181 transitions. [2025-03-09 06:37:58,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 272 flow [2025-03-09 06:37:58,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:37:58,409 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 168 flow [2025-03-09 06:37:58,409 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2025-03-09 06:37:58,410 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2025-03-09 06:37:58,410 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 168 flow [2025-03-09 06:37:58,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-09 06:37:58,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:58,410 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:58,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:37:58,411 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:58,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:58,411 INFO L85 PathProgramCache]: Analyzing trace with hash -120775869, now seen corresponding path program 1 times [2025-03-09 06:37:58,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:58,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222523504] [2025-03-09 06:37:58,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:58,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:58,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:37:58,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:37:58,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:58,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:58,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:58,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222523504] [2025-03-09 06:37:58,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222523504] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:58,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:58,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:37:58,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029161448] [2025-03-09 06:37:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:58,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:58,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:58,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:58,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:58,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2025-03-09 06:37:58,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2025-03-09 06:37:58,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:58,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2025-03-09 06:37:58,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:58,664 INFO L124 PetriNetUnfolderBase]: 507/1143 cut-off events. [2025-03-09 06:37:58,664 INFO L125 PetriNetUnfolderBase]: For 519/521 co-relation queries the response was YES. [2025-03-09 06:37:58,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 1143 events. 507/1143 cut-off events. For 519/521 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7817 event pairs, 134 based on Foata normal form. 24/996 useless extension candidates. Maximal degree in co-relation 1713. Up to 454 conditions per place. [2025-03-09 06:37:58,672 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 39 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2025-03-09 06:37:58,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 75 transitions, 278 flow [2025-03-09 06:37:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2025-03-09 06:37:58,673 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6704545454545454 [2025-03-09 06:37:58,673 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 168 flow. Second operand 4 states and 177 transitions. [2025-03-09 06:37:58,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 75 transitions, 278 flow [2025-03-09 06:37:58,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 75 transitions, 270 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:37:58,676 INFO L231 Difference]: Finished difference. Result has 62 places, 62 transitions, 164 flow [2025-03-09 06:37:58,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=62, PETRI_TRANSITIONS=62} [2025-03-09 06:37:58,677 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2025-03-09 06:37:58,677 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 62 transitions, 164 flow [2025-03-09 06:37:58,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2025-03-09 06:37:58,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:58,678 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:58,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:37:58,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:58,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:58,678 INFO L85 PathProgramCache]: Analyzing trace with hash 179173513, now seen corresponding path program 1 times [2025-03-09 06:37:58,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:58,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269136709] [2025-03-09 06:37:58,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:58,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:37:58,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:37:58,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:58,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:58,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:58,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269136709] [2025-03-09 06:37:58,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269136709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:58,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:58,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:37:58,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435657879] [2025-03-09 06:37:58,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:58,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:58,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:58,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:58,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:58,794 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2025-03-09 06:37:58,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 62 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2025-03-09 06:37:58,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:58,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2025-03-09 06:37:58,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:58,938 INFO L124 PetriNetUnfolderBase]: 509/1131 cut-off events. [2025-03-09 06:37:58,938 INFO L125 PetriNetUnfolderBase]: For 446/466 co-relation queries the response was YES. [2025-03-09 06:37:58,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2205 conditions, 1131 events. 509/1131 cut-off events. For 446/466 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7708 event pairs, 172 based on Foata normal form. 70/986 useless extension candidates. Maximal degree in co-relation 1260. Up to 382 conditions per place. [2025-03-09 06:37:58,944 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 41 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2025-03-09 06:37:58,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 301 flow [2025-03-09 06:37:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 178 transitions. [2025-03-09 06:37:58,946 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2025-03-09 06:37:58,946 INFO L175 Difference]: Start difference. First operand has 62 places, 62 transitions, 164 flow. Second operand 4 states and 178 transitions. [2025-03-09 06:37:58,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 301 flow [2025-03-09 06:37:58,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 74 transitions, 287 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:37:58,948 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 158 flow [2025-03-09 06:37:58,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2025-03-09 06:37:58,949 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2025-03-09 06:37:58,949 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 158 flow [2025-03-09 06:37:58,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2025-03-09 06:37:58,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:58,949 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:58,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:37:58,950 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:58,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash 550914788, now seen corresponding path program 1 times [2025-03-09 06:37:58,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:58,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589746141] [2025-03-09 06:37:58,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:58,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:58,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:37:58,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:37:58,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:58,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:59,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:59,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589746141] [2025-03-09 06:37:59,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589746141] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:59,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:59,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:59,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118466027] [2025-03-09 06:37:59,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:59,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:37:59,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:59,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:37:59,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:37:59,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 66 [2025-03-09 06:37:59,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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) [2025-03-09 06:37:59,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:59,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 66 [2025-03-09 06:37:59,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:59,266 INFO L124 PetriNetUnfolderBase]: 683/1295 cut-off events. [2025-03-09 06:37:59,267 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2025-03-09 06:37:59,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2739 conditions, 1295 events. 683/1295 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8201 event pairs, 126 based on Foata normal form. 0/1186 useless extension candidates. Maximal degree in co-relation 2107. Up to 544 conditions per place. [2025-03-09 06:37:59,276 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 52 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2025-03-09 06:37:59,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 336 flow [2025-03-09 06:37:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:37:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:37:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2025-03-09 06:37:59,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6757575757575758 [2025-03-09 06:37:59,279 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 158 flow. Second operand 5 states and 223 transitions. [2025-03-09 06:37:59,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 336 flow [2025-03-09 06:37:59,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 85 transitions, 322 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:37:59,282 INFO L231 Difference]: Finished difference. Result has 60 places, 59 transitions, 162 flow [2025-03-09 06:37:59,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=60, PETRI_TRANSITIONS=59} [2025-03-09 06:37:59,284 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2025-03-09 06:37:59,284 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 59 transitions, 162 flow [2025-03-09 06:37:59,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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) [2025-03-09 06:37:59,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:59,285 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:59,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:37:59,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:59,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:59,286 INFO L85 PathProgramCache]: Analyzing trace with hash 550915781, now seen corresponding path program 1 times [2025-03-09 06:37:59,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:59,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045451526] [2025-03-09 06:37:59,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:59,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:59,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:37:59,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:37:59,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:59,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:59,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:59,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045451526] [2025-03-09 06:37:59,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045451526] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:59,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:59,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:59,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178392532] [2025-03-09 06:37:59,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:59,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:59,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:59,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:59,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:59,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2025-03-09 06:37:59,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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) [2025-03-09 06:37:59,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:59,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2025-03-09 06:37:59,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:59,503 INFO L124 PetriNetUnfolderBase]: 551/1167 cut-off events. [2025-03-09 06:37:59,503 INFO L125 PetriNetUnfolderBase]: For 517/517 co-relation queries the response was YES. [2025-03-09 06:37:59,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2415 conditions, 1167 events. 551/1167 cut-off events. For 517/517 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7748 event pairs, 238 based on Foata normal form. 22/1041 useless extension candidates. Maximal degree in co-relation 1321. Up to 539 conditions per place. [2025-03-09 06:37:59,510 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 54 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2025-03-09 06:37:59,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 330 flow [2025-03-09 06:37:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2025-03-09 06:37:59,512 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2025-03-09 06:37:59,512 INFO L175 Difference]: Start difference. First operand has 60 places, 59 transitions, 162 flow. Second operand 4 states and 187 transitions. [2025-03-09 06:37:59,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 330 flow [2025-03-09 06:37:59,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 85 transitions, 318 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:37:59,515 INFO L231 Difference]: Finished difference. Result has 59 places, 58 transitions, 152 flow [2025-03-09 06:37:59,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=59, PETRI_TRANSITIONS=58} [2025-03-09 06:37:59,517 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2025-03-09 06:37:59,517 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 152 flow [2025-03-09 06:37:59,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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) [2025-03-09 06:37:59,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:59,518 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:59,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:37:59,518 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:59,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1259412052, now seen corresponding path program 1 times [2025-03-09 06:37:59,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:59,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425933789] [2025-03-09 06:37:59,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:59,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:59,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:37:59,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:37:59,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:59,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:59,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:59,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425933789] [2025-03-09 06:37:59,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425933789] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:59,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:59,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:37:59,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765121877] [2025-03-09 06:37:59,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:59,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:59,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:59,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:59,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:59,581 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 66 [2025-03-09 06:37:59,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2025-03-09 06:37:59,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:59,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 66 [2025-03-09 06:37:59,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:59,703 INFO L124 PetriNetUnfolderBase]: 426/1010 cut-off events. [2025-03-09 06:37:59,704 INFO L125 PetriNetUnfolderBase]: For 324/340 co-relation queries the response was YES. [2025-03-09 06:37:59,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1883 conditions, 1010 events. 426/1010 cut-off events. For 324/340 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6946 event pairs, 172 based on Foata normal form. 16/874 useless extension candidates. Maximal degree in co-relation 1096. Up to 382 conditions per place. [2025-03-09 06:37:59,709 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 39 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2025-03-09 06:37:59,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 286 flow [2025-03-09 06:37:59,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:59,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 179 transitions. [2025-03-09 06:37:59,710 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.678030303030303 [2025-03-09 06:37:59,710 INFO L175 Difference]: Start difference. First operand has 59 places, 58 transitions, 152 flow. Second operand 4 states and 179 transitions. [2025-03-09 06:37:59,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 286 flow [2025-03-09 06:37:59,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 275 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:37:59,714 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 150 flow [2025-03-09 06:37:59,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2025-03-09 06:37:59,716 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2025-03-09 06:37:59,716 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 150 flow [2025-03-09 06:37:59,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2025-03-09 06:37:59,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:59,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:59,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:37:59,717 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:37:59,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -101510330, now seen corresponding path program 1 times [2025-03-09 06:37:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:59,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310617878] [2025-03-09 06:37:59,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:59,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:59,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:37:59,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:37:59,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:59,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:59,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:59,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:59,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310617878] [2025-03-09 06:37:59,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310617878] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:59,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:59,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:37:59,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168659739] [2025-03-09 06:37:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:59,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:37:59,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:59,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:37:59,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:37:59,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2025-03-09 06:37:59,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 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) [2025-03-09 06:37:59,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:59,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2025-03-09 06:37:59,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:00,081 INFO L124 PetriNetUnfolderBase]: 661/1241 cut-off events. [2025-03-09 06:38:00,082 INFO L125 PetriNetUnfolderBase]: For 361/363 co-relation queries the response was YES. [2025-03-09 06:38:00,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 1241 events. 661/1241 cut-off events. For 361/363 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 7813 event pairs, 124 based on Foata normal form. 46/1178 useless extension candidates. Maximal degree in co-relation 2012. Up to 312 conditions per place. [2025-03-09 06:38:00,090 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 62 selfloop transitions, 9 changer transitions 0/96 dead transitions. [2025-03-09 06:38:00,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 96 transitions, 388 flow [2025-03-09 06:38:00,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:38:00,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:38:00,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 250 transitions. [2025-03-09 06:38:00,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2025-03-09 06:38:00,093 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 150 flow. Second operand 6 states and 250 transitions. [2025-03-09 06:38:00,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 96 transitions, 388 flow [2025-03-09 06:38:00,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 96 transitions, 370 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:38:00,096 INFO L231 Difference]: Finished difference. Result has 61 places, 57 transitions, 169 flow [2025-03-09 06:38:00,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2025-03-09 06:38:00,098 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2025-03-09 06:38:00,098 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 169 flow [2025-03-09 06:38:00,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 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) [2025-03-09 06:38:00,099 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:00,099 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:00,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:38:00,099 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:00,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:00,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2066836427, now seen corresponding path program 1 times [2025-03-09 06:38:00,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:00,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106433957] [2025-03-09 06:38:00,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:00,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:00,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:38:00,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:38:00,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:00,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:00,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:00,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106433957] [2025-03-09 06:38:00,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106433957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:00,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896490371] [2025-03-09 06:38:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:00,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:00,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:00,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:00,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:00,166 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2025-03-09 06:38:00,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2025-03-09 06:38:00,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:00,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2025-03-09 06:38:00,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:00,292 INFO L124 PetriNetUnfolderBase]: 653/1208 cut-off events. [2025-03-09 06:38:00,292 INFO L125 PetriNetUnfolderBase]: For 1041/1059 co-relation queries the response was YES. [2025-03-09 06:38:00,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2747 conditions, 1208 events. 653/1208 cut-off events. For 1041/1059 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 7490 event pairs, 232 based on Foata normal form. 40/1115 useless extension candidates. Maximal degree in co-relation 1420. Up to 549 conditions per place. [2025-03-09 06:38:00,297 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 53 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2025-03-09 06:38:00,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 83 transitions, 341 flow [2025-03-09 06:38:00,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2025-03-09 06:38:00,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7007575757575758 [2025-03-09 06:38:00,299 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 169 flow. Second operand 4 states and 185 transitions. [2025-03-09 06:38:00,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 83 transitions, 341 flow [2025-03-09 06:38:00,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 83 transitions, 324 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:38:00,301 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 166 flow [2025-03-09 06:38:00,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2025-03-09 06:38:00,301 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2025-03-09 06:38:00,301 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 166 flow [2025-03-09 06:38:00,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2025-03-09 06:38:00,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:00,302 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:00,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:38:00,302 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:00,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:00,302 INFO L85 PathProgramCache]: Analyzing trace with hash -886734441, now seen corresponding path program 1 times [2025-03-09 06:38:00,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:00,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914088123] [2025-03-09 06:38:00,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:00,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:00,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:38:00,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:38:00,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:00,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:00,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:00,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:00,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914088123] [2025-03-09 06:38:00,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914088123] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:00,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:00,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:00,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926073538] [2025-03-09 06:38:00,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:00,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:00,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:00,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:00,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:00,356 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2025-03-09 06:38:00,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2025-03-09 06:38:00,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:00,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2025-03-09 06:38:00,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:00,491 INFO L124 PetriNetUnfolderBase]: 748/1611 cut-off events. [2025-03-09 06:38:00,491 INFO L125 PetriNetUnfolderBase]: For 1280/1352 co-relation queries the response was YES. [2025-03-09 06:38:00,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3411 conditions, 1611 events. 748/1611 cut-off events. For 1280/1352 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 11340 event pairs, 340 based on Foata normal form. 72/1452 useless extension candidates. Maximal degree in co-relation 2634. Up to 725 conditions per place. [2025-03-09 06:38:00,498 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 64 selfloop transitions, 5 changer transitions 0/93 dead transitions. [2025-03-09 06:38:00,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 93 transitions, 452 flow [2025-03-09 06:38:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:00,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions. [2025-03-09 06:38:00,500 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7045454545454546 [2025-03-09 06:38:00,500 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 166 flow. Second operand 4 states and 186 transitions. [2025-03-09 06:38:00,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 93 transitions, 452 flow [2025-03-09 06:38:00,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 93 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:38:00,503 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 189 flow [2025-03-09 06:38:00,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2025-03-09 06:38:00,504 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2025-03-09 06:38:00,504 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 189 flow [2025-03-09 06:38:00,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2025-03-09 06:38:00,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:00,504 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:00,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:38:00,505 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:00,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash -886735434, now seen corresponding path program 1 times [2025-03-09 06:38:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:00,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971518331] [2025-03-09 06:38:00,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:00,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:00,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:38:00,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:38:00,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:00,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:00,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:00,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971518331] [2025-03-09 06:38:00,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971518331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:00,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:00,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:00,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722863689] [2025-03-09 06:38:00,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:00,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:38:00,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:00,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:38:00,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:38:00,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 66 [2025-03-09 06:38:00,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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) [2025-03-09 06:38:00,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:00,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 66 [2025-03-09 06:38:00,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:00,765 INFO L124 PetriNetUnfolderBase]: 880/1679 cut-off events. [2025-03-09 06:38:00,765 INFO L125 PetriNetUnfolderBase]: For 1442/1534 co-relation queries the response was YES. [2025-03-09 06:38:00,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3998 conditions, 1679 events. 880/1679 cut-off events. For 1442/1534 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10918 event pairs, 188 based on Foata normal form. 92/1659 useless extension candidates. Maximal degree in co-relation 3114. Up to 693 conditions per place. [2025-03-09 06:38:00,773 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 63 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2025-03-09 06:38:00,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 459 flow [2025-03-09 06:38:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:38:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:38:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 221 transitions. [2025-03-09 06:38:00,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6696969696969697 [2025-03-09 06:38:00,774 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 189 flow. Second operand 5 states and 221 transitions. [2025-03-09 06:38:00,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 459 flow [2025-03-09 06:38:00,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:38:00,779 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 203 flow [2025-03-09 06:38:00,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=203, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2025-03-09 06:38:00,780 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2025-03-09 06:38:00,780 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 203 flow [2025-03-09 06:38:00,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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) [2025-03-09 06:38:00,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:00,781 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:00,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:38:00,781 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:00,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1718994224, now seen corresponding path program 1 times [2025-03-09 06:38:00,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:00,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091395792] [2025-03-09 06:38:00,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:00,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:00,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:38:00,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:38:00,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:00,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:00,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:00,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091395792] [2025-03-09 06:38:00,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091395792] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:00,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:00,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:38:00,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718569469] [2025-03-09 06:38:00,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:00,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:38:00,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:00,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:38:00,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:38:00,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2025-03-09 06:38:00,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 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) [2025-03-09 06:38:00,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:00,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2025-03-09 06:38:00,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:01,074 INFO L124 PetriNetUnfolderBase]: 880/1652 cut-off events. [2025-03-09 06:38:01,075 INFO L125 PetriNetUnfolderBase]: For 1766/1858 co-relation queries the response was YES. [2025-03-09 06:38:01,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 1652 events. 880/1652 cut-off events. For 1766/1858 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10579 event pairs, 188 based on Foata normal form. 146/1686 useless extension candidates. Maximal degree in co-relation 3253. Up to 440 conditions per place. [2025-03-09 06:38:01,082 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 76 selfloop transitions, 9 changer transitions 0/107 dead transitions. [2025-03-09 06:38:01,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 107 transitions, 571 flow [2025-03-09 06:38:01,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:38:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:38:01,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 247 transitions. [2025-03-09 06:38:01,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6237373737373737 [2025-03-09 06:38:01,084 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 203 flow. Second operand 6 states and 247 transitions. [2025-03-09 06:38:01,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 107 transitions, 571 flow [2025-03-09 06:38:01,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 107 transitions, 562 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:38:01,088 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 219 flow [2025-03-09 06:38:01,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2025-03-09 06:38:01,089 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 9 predicate places. [2025-03-09 06:38:01,089 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 219 flow [2025-03-09 06:38:01,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 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) [2025-03-09 06:38:01,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:01,090 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:01,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:38:01,090 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:01,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:01,090 INFO L85 PathProgramCache]: Analyzing trace with hash -830524003, now seen corresponding path program 1 times [2025-03-09 06:38:01,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:01,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325046946] [2025-03-09 06:38:01,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:01,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:01,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:38:01,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:38:01,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:01,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:01,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:01,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325046946] [2025-03-09 06:38:01,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325046946] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:01,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:01,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:38:01,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786921526] [2025-03-09 06:38:01,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:01,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:38:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:01,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:38:01,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:38:01,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2025-03-09 06:38:01,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 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) [2025-03-09 06:38:01,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:01,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2025-03-09 06:38:01,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:01,347 INFO L124 PetriNetUnfolderBase]: 853/1556 cut-off events. [2025-03-09 06:38:01,347 INFO L125 PetriNetUnfolderBase]: For 1781/1871 co-relation queries the response was YES. [2025-03-09 06:38:01,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4207 conditions, 1556 events. 853/1556 cut-off events. For 1781/1871 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 9800 event pairs, 340 based on Foata normal form. 117/1611 useless extension candidates. Maximal degree in co-relation 3282. Up to 752 conditions per place. [2025-03-09 06:38:01,355 INFO L140 encePairwiseOnDemand]: 59/66 looper letters, 0 selfloop transitions, 0 changer transitions 123/123 dead transitions. [2025-03-09 06:38:01,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 123 transitions, 685 flow [2025-03-09 06:38:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:38:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:38:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 264 transitions. [2025-03-09 06:38:01,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-09 06:38:01,357 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 219 flow. Second operand 6 states and 264 transitions. [2025-03-09 06:38:01,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 123 transitions, 685 flow [2025-03-09 06:38:01,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 123 transitions, 667 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-09 06:38:01,363 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2025-03-09 06:38:01,363 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2025-03-09 06:38:01,363 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 8 predicate places. [2025-03-09 06:38:01,364 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2025-03-09 06:38:01,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 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) [2025-03-09 06:38:01,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2025-03-09 06:38:01,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2025-03-09 06:38:01,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2025-03-09 06:38:01,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2025-03-09 06:38:01,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2025-03-09 06:38:01,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2025-03-09 06:38:01,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2025-03-09 06:38:01,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2025-03-09 06:38:01,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2025-03-09 06:38:01,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:38:01,371 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:01,375 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:38:01,375 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:38:01,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:38:01 BasicIcfg [2025-03-09 06:38:01,378 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:38:01,379 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:38:01,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:38:01,379 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:38:01,379 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:37:57" (3/4) ... [2025-03-09 06:38:01,380 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:38:01,382 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:38:01,382 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:38:01,385 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-03-09 06:38:01,385 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-03-09 06:38:01,385 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-09 06:38:01,385 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 06:38:01,433 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:38:01,434 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:38:01,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:38:01,434 INFO L158 Benchmark]: Toolchain (without parser) took 4804.19ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 103.4MB in the beginning and 114.9MB in the end (delta: -11.5MB). Peak memory consumption was 183.9MB. Max. memory is 16.1GB. [2025-03-09 06:38:01,434 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:38:01,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.10ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 91.8MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:38:01,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.89ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 89.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:38:01,435 INFO L158 Benchmark]: Boogie Preprocessor took 36.88ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 88.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:38:01,435 INFO L158 Benchmark]: IcfgBuilder took 487.11ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 50.9MB in the end (delta: 37.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 06:38:01,435 INFO L158 Benchmark]: TraceAbstraction took 4007.19ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 49.9MB in the beginning and 119.6MB in the end (delta: -69.8MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. [2025-03-09 06:38:01,435 INFO L158 Benchmark]: Witness Printer took 54.97ms. Allocated memory is still 335.5MB. Free memory was 119.6MB in the beginning and 114.9MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:38:01,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.10ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 91.8MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.89ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 89.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.88ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 88.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 487.11ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 50.9MB in the end (delta: 37.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4007.19ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 49.9MB in the beginning and 119.6MB in the end (delta: -69.8MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. * Witness Printer took 54.97ms. Allocated memory is still 335.5MB. Free memory was 119.6MB in the beginning and 114.9MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: 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: 79]: 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: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: 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: 79]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 126 edges, 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: 3.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1031 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 816 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1810 IncrementalHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 45 mSDtfsCounter, 1810 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=12, InterpolantAutomatonStates: 60, 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, 0.8s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2025-03-09 06:38:01,448 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