/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 13:46:27,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 13:46:27,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 13:46:27,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 13:46:27,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 13:46:27,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 13:46:27,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 13:46:27,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 13:46:27,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 13:46:27,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 13:46:27,765 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 13:46:27,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 13:46:27,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 13:46:27,767 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 13:46:27,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 13:46:27,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 13:46:27,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 13:46:27,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 13:46:27,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 13:46:27,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 13:46:27,768 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 13:46:27,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 13:46:27,769 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 13:46:27,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 13:46:27,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 13:46:27,770 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 13:46:27,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 13:46:27,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 13:46:27,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 13:46:27,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 13:46:27,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 13:46:27,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 13:46:27,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 13:46:27,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 13:46:27,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 13:46:27,773 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 13:46:28,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 13:46:28,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 13:46:28,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 13:46:28,067 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 13:46:28,068 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 13:46:28,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2023-08-27 13:46:29,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 13:46:29,337 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 13:46:29,337 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2023-08-27 13:46:29,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97690bd0/f7d88b1dba154e9dbe5bd711a9b0388d/FLAGc1ffc4c8c [2023-08-27 13:46:29,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97690bd0/f7d88b1dba154e9dbe5bd711a9b0388d [2023-08-27 13:46:29,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 13:46:29,367 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 13:46:29,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 13:46:29,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 13:46:29,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 13:46:29,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6184f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29, skipping insertion in model container [2023-08-27 13:46:29,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,390 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 13:46:29,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 13:46:29,576 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 13:46:29,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 13:46:29,638 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 13:46:29,638 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 13:46:29,644 INFO L206 MainTranslator]: Completed translation [2023-08-27 13:46:29,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29 WrapperNode [2023-08-27 13:46:29,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 13:46:29,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 13:46:29,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 13:46:29,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 13:46:29,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,714 INFO L138 Inliner]: procedures = 28, calls = 75, calls flagged for inlining = 19, calls inlined = 27, statements flattened = 434 [2023-08-27 13:46:29,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 13:46:29,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 13:46:29,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 13:46:29,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 13:46:29,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 13:46:29,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 13:46:29,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 13:46:29,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 13:46:29,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (1/1) ... [2023-08-27 13:46:29,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 13:46:29,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:46:29,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 13:46:29,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 13:46:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 13:46:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-27 13:46:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 13:46:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 13:46:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 13:46:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-27 13:46:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 13:46:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 13:46:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 13:46:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 13:46:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 13:46:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 13:46:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 13:46:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 13:46:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 13:46:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 13:46:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 13:46:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 13:46:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 13:46:29,857 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 13:46:30,005 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 13:46:30,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 13:46:30,623 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 13:46:30,982 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 13:46:30,982 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-08-27 13:46:30,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:46:30 BoogieIcfgContainer [2023-08-27 13:46:30,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 13:46:30,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 13:46:30,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 13:46:30,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 13:46:30,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 01:46:29" (1/3) ... [2023-08-27 13:46:30,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8eada3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 01:46:30, skipping insertion in model container [2023-08-27 13:46:30,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:46:29" (2/3) ... [2023-08-27 13:46:30,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8eada3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 01:46:30, skipping insertion in model container [2023-08-27 13:46:30,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:46:30" (3/3) ... [2023-08-27 13:46:30,995 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2023-08-27 13:46:31,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 13:46:31,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-27 13:46:31,012 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 13:46:31,210 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 13:46:31,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 384 transitions, 792 flow [2023-08-27 13:46:31,439 INFO L124 PetriNetUnfolderBase]: 35/381 cut-off events. [2023-08-27 13:46:31,439 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 13:46:31,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 381 events. 35/381 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 871 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 304. Up to 2 conditions per place. [2023-08-27 13:46:31,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 384 transitions, 792 flow [2023-08-27 13:46:31,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 370 transitions, 758 flow [2023-08-27 13:46:31,462 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 13:46:31,474 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 370 transitions, 758 flow [2023-08-27 13:46:31,480 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 370 transitions, 758 flow [2023-08-27 13:46:31,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 370 transitions, 758 flow [2023-08-27 13:46:31,544 INFO L124 PetriNetUnfolderBase]: 35/370 cut-off events. [2023-08-27 13:46:31,545 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 13:46:31,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 370 events. 35/370 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 873 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 304. Up to 2 conditions per place. [2023-08-27 13:46:31,560 INFO L119 LiptonReduction]: Number of co-enabled transitions 18600 [2023-08-27 13:47:02,036 INFO L134 LiptonReduction]: Checked pairs total: 23800 [2023-08-27 13:47:02,036 INFO L136 LiptonReduction]: Total number of compositions: 452 [2023-08-27 13:47:02,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 13:47:02,052 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6526817, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 13:47:02,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-27 13:47:02,055 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 13:47:02,055 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-27 13:47:02,055 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 13:47:02,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:02,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 13:47:02,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:02,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:02,060 INFO L85 PathProgramCache]: Analyzing trace with hash 62202, now seen corresponding path program 1 times [2023-08-27 13:47:02,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:02,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692242399] [2023-08-27 13:47:02,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:02,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:02,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692242399] [2023-08-27 13:47:02,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692242399] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:02,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:02,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:47:02,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83133812] [2023-08-27 13:47:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:02,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:47:02,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:02,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:47:02,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:47:02,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 836 [2023-08-27 13:47:02,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 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) [2023-08-27 13:47:02,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:02,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 836 [2023-08-27 13:47:02,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:05,477 INFO L124 PetriNetUnfolderBase]: 11774/15450 cut-off events. [2023-08-27 13:47:05,478 INFO L125 PetriNetUnfolderBase]: For 467/467 co-relation queries the response was YES. [2023-08-27 13:47:05,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31382 conditions, 15450 events. 11774/15450 cut-off events. For 467/467 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 83564 event pairs, 7845 based on Foata normal form. 0/6065 useless extension candidates. Maximal degree in co-relation 29288. Up to 15431 conditions per place. [2023-08-27 13:47:05,573 INFO L140 encePairwiseOnDemand]: 812/836 looper letters, 59 selfloop transitions, 10 changer transitions 0/72 dead transitions. [2023-08-27 13:47:05,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 300 flow [2023-08-27 13:47:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:47:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:47:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2023-08-27 13:47:05,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40749601275917063 [2023-08-27 13:47:05,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1022 transitions. [2023-08-27 13:47:05,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1022 transitions. [2023-08-27 13:47:05,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:05,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1022 transitions. [2023-08-27 13:47:05,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 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) [2023-08-27 13:47:05,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:05,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:05,621 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 162 flow. Second operand 3 states and 1022 transitions. [2023-08-27 13:47:05,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 300 flow [2023-08-27 13:47:05,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 72 transitions, 288 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 13:47:05,630 INFO L231 Difference]: Finished difference. Result has 65 places, 72 transitions, 218 flow [2023-08-27 13:47:05,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=65, PETRI_TRANSITIONS=72} [2023-08-27 13:47:05,636 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -8 predicate places. [2023-08-27 13:47:05,636 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 72 transitions, 218 flow [2023-08-27 13:47:05,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 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) [2023-08-27 13:47:05,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:05,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 13:47:05,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 13:47:05,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:05,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1930137, now seen corresponding path program 1 times [2023-08-27 13:47:05,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:05,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695272543] [2023-08-27 13:47:05,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:05,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:05,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:05,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695272543] [2023-08-27 13:47:05,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695272543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:05,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:05,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 13:47:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323600649] [2023-08-27 13:47:05,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:05,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:47:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:05,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:47:05,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:47:05,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 836 [2023-08-27 13:47:05,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 72 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 314.0) internal successors, (942), 3 states have internal predecessors, (942), 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) [2023-08-27 13:47:05,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:05,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 836 [2023-08-27 13:47:05,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:08,061 INFO L124 PetriNetUnfolderBase]: 11774/15447 cut-off events. [2023-08-27 13:47:08,062 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2023-08-27 13:47:08,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31096 conditions, 15447 events. 11774/15447 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 83497 event pairs, 7845 based on Foata normal form. 0/6069 useless extension candidates. Maximal degree in co-relation 31019. Up to 15419 conditions per place. [2023-08-27 13:47:08,135 INFO L140 encePairwiseOnDemand]: 827/836 looper letters, 56 selfloop transitions, 10 changer transitions 0/69 dead transitions. [2023-08-27 13:47:08,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 69 transitions, 338 flow [2023-08-27 13:47:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:47:08,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:47:08,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1000 transitions. [2023-08-27 13:47:08,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39872408293460926 [2023-08-27 13:47:08,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1000 transitions. [2023-08-27 13:47:08,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1000 transitions. [2023-08-27 13:47:08,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:08,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1000 transitions. [2023-08-27 13:47:08,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 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) [2023-08-27 13:47:08,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:08,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:08,153 INFO L175 Difference]: Start difference. First operand has 65 places, 72 transitions, 218 flow. Second operand 3 states and 1000 transitions. [2023-08-27 13:47:08,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 69 transitions, 338 flow [2023-08-27 13:47:08,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 13:47:08,158 INFO L231 Difference]: Finished difference. Result has 62 places, 69 transitions, 206 flow [2023-08-27 13:47:08,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=62, PETRI_TRANSITIONS=69} [2023-08-27 13:47:08,162 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -11 predicate places. [2023-08-27 13:47:08,163 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 69 transitions, 206 flow [2023-08-27 13:47:08,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.0) internal successors, (942), 3 states have internal predecessors, (942), 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) [2023-08-27 13:47:08,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:08,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 13:47:08,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 13:47:08,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:08,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:08,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1930138, now seen corresponding path program 1 times [2023-08-27 13:47:08,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:08,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326736039] [2023-08-27 13:47:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:08,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:08,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326736039] [2023-08-27 13:47:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326736039] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114064801] [2023-08-27 13:47:08,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:08,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:08,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:08,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:08,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-27 13:47:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:08,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 13:47:08,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:08,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 13:47:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:08,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114064801] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 13:47:08,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 13:47:08,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 13:47:08,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309577755] [2023-08-27 13:47:08,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 13:47:08,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 13:47:08,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:08,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 13:47:08,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 13:47:08,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 836 [2023-08-27 13:47:08,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 69 transitions, 206 flow. Second operand has 7 states, 7 states have (on average 314.14285714285717) internal successors, (2199), 7 states have internal predecessors, (2199), 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) [2023-08-27 13:47:08,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:08,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 836 [2023-08-27 13:47:08,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:10,655 INFO L124 PetriNetUnfolderBase]: 11789/15471 cut-off events. [2023-08-27 13:47:10,656 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2023-08-27 13:47:10,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31180 conditions, 15471 events. 11789/15471 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 83540 event pairs, 7845 based on Foata normal form. 0/6086 useless extension candidates. Maximal degree in co-relation 31019. Up to 15440 conditions per place. [2023-08-27 13:47:10,716 INFO L140 encePairwiseOnDemand]: 823/836 looper letters, 56 selfloop transitions, 34 changer transitions 0/93 dead transitions. [2023-08-27 13:47:10,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 93 transitions, 506 flow [2023-08-27 13:47:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:47:10,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:47:10,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1977 transitions. [2023-08-27 13:47:10,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39413875598086123 [2023-08-27 13:47:10,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1977 transitions. [2023-08-27 13:47:10,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1977 transitions. [2023-08-27 13:47:10,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:10,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1977 transitions. [2023-08-27 13:47:10,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 329.5) internal successors, (1977), 6 states have internal predecessors, (1977), 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) [2023-08-27 13:47:10,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 836.0) internal successors, (5852), 7 states have internal predecessors, (5852), 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) [2023-08-27 13:47:10,737 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 836.0) internal successors, (5852), 7 states have internal predecessors, (5852), 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) [2023-08-27 13:47:10,738 INFO L175 Difference]: Start difference. First operand has 62 places, 69 transitions, 206 flow. Second operand 6 states and 1977 transitions. [2023-08-27 13:47:10,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 93 transitions, 506 flow [2023-08-27 13:47:10,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 93 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 13:47:10,741 INFO L231 Difference]: Finished difference. Result has 68 places, 93 transitions, 415 flow [2023-08-27 13:47:10,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=68, PETRI_TRANSITIONS=93} [2023-08-27 13:47:10,741 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -5 predicate places. [2023-08-27 13:47:10,742 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 93 transitions, 415 flow [2023-08-27 13:47:10,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 314.14285714285717) internal successors, (2199), 7 states have internal predecessors, (2199), 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) [2023-08-27 13:47:10,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:10,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 13:47:10,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-27 13:47:10,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:10,950 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:10,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1856994276, now seen corresponding path program 1 times [2023-08-27 13:47:10,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:10,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486213480] [2023-08-27 13:47:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:10,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:11,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486213480] [2023-08-27 13:47:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486213480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:11,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:11,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 13:47:11,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321603152] [2023-08-27 13:47:11,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:11,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:47:11,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:47:11,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:47:11,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 836 [2023-08-27 13:47:11,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 93 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 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) [2023-08-27 13:47:11,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:11,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 836 [2023-08-27 13:47:11,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:12,813 INFO L124 PetriNetUnfolderBase]: 11795/15484 cut-off events. [2023-08-27 13:47:12,813 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-08-27 13:47:12,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31293 conditions, 15484 events. 11795/15484 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 83702 event pairs, 7845 based on Foata normal form. 0/6099 useless extension candidates. Maximal degree in co-relation 31152. Up to 15457 conditions per place. [2023-08-27 13:47:12,874 INFO L140 encePairwiseOnDemand]: 831/836 looper letters, 92 selfloop transitions, 11 changer transitions 0/106 dead transitions. [2023-08-27 13:47:12,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 708 flow [2023-08-27 13:47:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:47:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:47:12,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1052 transitions. [2023-08-27 13:47:12,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4194577352472089 [2023-08-27 13:47:12,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1052 transitions. [2023-08-27 13:47:12,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1052 transitions. [2023-08-27 13:47:12,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:12,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1052 transitions. [2023-08-27 13:47:12,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 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) [2023-08-27 13:47:12,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:12,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:12,886 INFO L175 Difference]: Start difference. First operand has 68 places, 93 transitions, 415 flow. Second operand 3 states and 1052 transitions. [2023-08-27 13:47:12,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 708 flow [2023-08-27 13:47:12,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 106 transitions, 638 flow, removed 27 selfloop flow, removed 1 redundant places. [2023-08-27 13:47:12,890 INFO L231 Difference]: Finished difference. Result has 70 places, 99 transitions, 453 flow [2023-08-27 13:47:12,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=70, PETRI_TRANSITIONS=99} [2023-08-27 13:47:12,891 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2023-08-27 13:47:12,891 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 99 transitions, 453 flow [2023-08-27 13:47:12,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 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) [2023-08-27 13:47:12,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:12,892 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-27 13:47:12,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 13:47:12,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:12,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:12,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1668029178, now seen corresponding path program 2 times [2023-08-27 13:47:12,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:12,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008040733] [2023-08-27 13:47:12,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:12,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:12,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008040733] [2023-08-27 13:47:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008040733] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555386612] [2023-08-27 13:47:12,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 13:47:12,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:12,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:12,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:13,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-27 13:47:13,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 13:47:13,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 13:47:13,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-27 13:47:13,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:13,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 13:47:13,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 13:47:13,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555386612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:13,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 13:47:13,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-27 13:47:13,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462747261] [2023-08-27 13:47:13,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:13,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:47:13,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:13,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:47:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 13:47:13,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 836 [2023-08-27 13:47:13,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 99 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 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) [2023-08-27 13:47:13,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:13,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 836 [2023-08-27 13:47:13,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:15,385 INFO L124 PetriNetUnfolderBase]: 11795/15483 cut-off events. [2023-08-27 13:47:15,386 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-08-27 13:47:15,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31288 conditions, 15483 events. 11795/15483 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 83587 event pairs, 7845 based on Foata normal form. 1/6106 useless extension candidates. Maximal degree in co-relation 31154. Up to 15462 conditions per place. [2023-08-27 13:47:15,443 INFO L140 encePairwiseOnDemand]: 833/836 looper letters, 89 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2023-08-27 13:47:15,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 98 transitions, 633 flow [2023-08-27 13:47:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:47:15,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:47:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2023-08-27 13:47:15,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4011164274322169 [2023-08-27 13:47:15,446 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1006 transitions. [2023-08-27 13:47:15,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1006 transitions. [2023-08-27 13:47:15,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:15,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1006 transitions. [2023-08-27 13:47:15,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 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) [2023-08-27 13:47:15,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:15,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:47:15,455 INFO L175 Difference]: Start difference. First operand has 70 places, 99 transitions, 453 flow. Second operand 3 states and 1006 transitions. [2023-08-27 13:47:15,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 98 transitions, 633 flow [2023-08-27 13:47:15,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 98 transitions, 622 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:47:15,459 INFO L231 Difference]: Finished difference. Result has 70 places, 98 transitions, 444 flow [2023-08-27 13:47:15,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=70, PETRI_TRANSITIONS=98} [2023-08-27 13:47:15,459 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2023-08-27 13:47:15,460 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 98 transitions, 444 flow [2023-08-27 13:47:15,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 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) [2023-08-27 13:47:15,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:15,461 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1] [2023-08-27 13:47:15,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-27 13:47:15,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:15,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:15,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2121806940, now seen corresponding path program 1 times [2023-08-27 13:47:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:15,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508197002] [2023-08-27 13:47:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:15,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-27 13:47:15,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:15,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508197002] [2023-08-27 13:47:15,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508197002] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:15,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:15,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 13:47:15,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190742318] [2023-08-27 13:47:15,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:15,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 13:47:15,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:15,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 13:47:15,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 13:47:15,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 836 [2023-08-27 13:47:15,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 98 transitions, 444 flow. Second operand has 4 states, 4 states have (on average 293.25) internal successors, (1173), 4 states have internal predecessors, (1173), 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) [2023-08-27 13:47:15,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:15,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 836 [2023-08-27 13:47:15,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:17,635 INFO L124 PetriNetUnfolderBase]: 11795/15484 cut-off events. [2023-08-27 13:47:17,635 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2023-08-27 13:47:17,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31293 conditions, 15484 events. 11795/15484 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 83655 event pairs, 7845 based on Foata normal form. 1/6108 useless extension candidates. Maximal degree in co-relation 31186. Up to 15463 conditions per place. [2023-08-27 13:47:17,679 INFO L140 encePairwiseOnDemand]: 831/836 looper letters, 86 selfloop transitions, 10 changer transitions 0/99 dead transitions. [2023-08-27 13:47:17,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 99 transitions, 643 flow [2023-08-27 13:47:17,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 13:47:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 13:47:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1231 transitions. [2023-08-27 13:47:17,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.368122009569378 [2023-08-27 13:47:17,683 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1231 transitions. [2023-08-27 13:47:17,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1231 transitions. [2023-08-27 13:47:17,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:17,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1231 transitions. [2023-08-27 13:47:17,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 307.75) internal successors, (1231), 4 states have internal predecessors, (1231), 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) [2023-08-27 13:47:17,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:17,691 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:17,691 INFO L175 Difference]: Start difference. First operand has 70 places, 98 transitions, 444 flow. Second operand 4 states and 1231 transitions. [2023-08-27 13:47:17,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 99 transitions, 643 flow [2023-08-27 13:47:17,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 631 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 13:47:17,694 INFO L231 Difference]: Finished difference. Result has 71 places, 99 transitions, 459 flow [2023-08-27 13:47:17,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=459, PETRI_PLACES=71, PETRI_TRANSITIONS=99} [2023-08-27 13:47:17,695 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -2 predicate places. [2023-08-27 13:47:17,695 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 99 transitions, 459 flow [2023-08-27 13:47:17,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 293.25) internal successors, (1173), 4 states have internal predecessors, (1173), 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) [2023-08-27 13:47:17,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:17,696 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-27 13:47:17,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 13:47:17,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:17,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1752637511, now seen corresponding path program 1 times [2023-08-27 13:47:17,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:17,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934625313] [2023-08-27 13:47:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:17,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 13:47:17,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:17,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934625313] [2023-08-27 13:47:17,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934625313] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:17,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952346995] [2023-08-27 13:47:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:17,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:17,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:17,791 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:17,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-27 13:47:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:18,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-27 13:47:18,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:18,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 13:47:18,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:18,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952346995] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 13:47:18,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 13:47:18,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 9 [2023-08-27 13:47:18,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186255748] [2023-08-27 13:47:18,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 13:47:18,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-27 13:47:18,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:18,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-27 13:47:18,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-27 13:47:18,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 836 [2023-08-27 13:47:18,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 99 transitions, 459 flow. Second operand has 9 states, 9 states have (on average 289.0) internal successors, (2601), 9 states have internal predecessors, (2601), 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) [2023-08-27 13:47:18,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:18,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 836 [2023-08-27 13:47:18,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:20,469 INFO L124 PetriNetUnfolderBase]: 14094/18910 cut-off events. [2023-08-27 13:47:20,470 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-08-27 13:47:20,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38378 conditions, 18910 events. 14094/18910 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 1204. Compared 109138 event pairs, 9811 based on Foata normal form. 2/8236 useless extension candidates. Maximal degree in co-relation 38262. Up to 15430 conditions per place. [2023-08-27 13:47:20,542 INFO L140 encePairwiseOnDemand]: 817/836 looper letters, 117 selfloop transitions, 50 changer transitions 0/170 dead transitions. [2023-08-27 13:47:20,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 170 transitions, 1090 flow [2023-08-27 13:47:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-27 13:47:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-27 13:47:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 4444 transitions. [2023-08-27 13:47:20,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3543859649122807 [2023-08-27 13:47:20,553 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 4444 transitions. [2023-08-27 13:47:20,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 4444 transitions. [2023-08-27 13:47:20,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:20,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 4444 transitions. [2023-08-27 13:47:20,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 296.26666666666665) internal successors, (4444), 15 states have internal predecessors, (4444), 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) [2023-08-27 13:47:20,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 836.0) internal successors, (13376), 16 states have internal predecessors, (13376), 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) [2023-08-27 13:47:20,584 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 836.0) internal successors, (13376), 16 states have internal predecessors, (13376), 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) [2023-08-27 13:47:20,584 INFO L175 Difference]: Start difference. First operand has 71 places, 99 transitions, 459 flow. Second operand 15 states and 4444 transitions. [2023-08-27 13:47:20,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 170 transitions, 1090 flow [2023-08-27 13:47:20,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 170 transitions, 1079 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-27 13:47:20,589 INFO L231 Difference]: Finished difference. Result has 88 places, 124 transitions, 812 flow [2023-08-27 13:47:20,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=812, PETRI_PLACES=88, PETRI_TRANSITIONS=124} [2023-08-27 13:47:20,590 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 15 predicate places. [2023-08-27 13:47:20,590 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 124 transitions, 812 flow [2023-08-27 13:47:20,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 289.0) internal successors, (2601), 9 states have internal predecessors, (2601), 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) [2023-08-27 13:47:20,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:20,591 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-27 13:47:20,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-27 13:47:20,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:20,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:20,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2134746785, now seen corresponding path program 1 times [2023-08-27 13:47:20,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:20,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581338741] [2023-08-27 13:47:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:20,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581338741] [2023-08-27 13:47:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581338741] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069550706] [2023-08-27 13:47:20,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:20,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:20,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:20,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:20,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-27 13:47:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:21,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 13:47:21,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:21,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 13:47:21,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069550706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:21,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 13:47:21,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-27 13:47:21,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034277443] [2023-08-27 13:47:21,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:21,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 13:47:21,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:21,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 13:47:21,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:47:21,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 836 [2023-08-27 13:47:21,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 124 transitions, 812 flow. Second operand has 4 states, 4 states have (on average 330.75) internal successors, (1323), 4 states have internal predecessors, (1323), 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) [2023-08-27 13:47:21,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:21,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 836 [2023-08-27 13:47:21,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:23,223 INFO L124 PetriNetUnfolderBase]: 14084/18895 cut-off events. [2023-08-27 13:47:23,224 INFO L125 PetriNetUnfolderBase]: For 889/889 co-relation queries the response was YES. [2023-08-27 13:47:23,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43428 conditions, 18895 events. 14084/18895 cut-off events. For 889/889 co-relation queries the response was YES. Maximal size of possible extension queue 1182. Compared 108362 event pairs, 9811 based on Foata normal form. 12/8929 useless extension candidates. Maximal degree in co-relation 43250. Up to 18812 conditions per place. [2023-08-27 13:47:23,285 INFO L140 encePairwiseOnDemand]: 832/836 looper letters, 98 selfloop transitions, 15 changer transitions 0/116 dead transitions. [2023-08-27 13:47:23,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 116 transitions, 939 flow [2023-08-27 13:47:23,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 13:47:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 13:47:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1378 transitions. [2023-08-27 13:47:23,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41208133971291866 [2023-08-27 13:47:23,288 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1378 transitions. [2023-08-27 13:47:23,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1378 transitions. [2023-08-27 13:47:23,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:23,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1378 transitions. [2023-08-27 13:47:23,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 344.5) internal successors, (1378), 4 states have internal predecessors, (1378), 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) [2023-08-27 13:47:23,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:23,295 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:23,296 INFO L175 Difference]: Start difference. First operand has 88 places, 124 transitions, 812 flow. Second operand 4 states and 1378 transitions. [2023-08-27 13:47:23,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 116 transitions, 939 flow [2023-08-27 13:47:23,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 116 transitions, 854 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-27 13:47:23,314 INFO L231 Difference]: Finished difference. Result has 86 places, 112 transitions, 635 flow [2023-08-27 13:47:23,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=635, PETRI_PLACES=86, PETRI_TRANSITIONS=112} [2023-08-27 13:47:23,314 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 13 predicate places. [2023-08-27 13:47:23,315 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 112 transitions, 635 flow [2023-08-27 13:47:23,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 330.75) internal successors, (1323), 4 states have internal predecessors, (1323), 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) [2023-08-27 13:47:23,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:23,315 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-08-27 13:47:23,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-27 13:47:23,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:23,521 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:23,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1389160516, now seen corresponding path program 1 times [2023-08-27 13:47:23,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:23,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386220525] [2023-08-27 13:47:23,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:23,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-27 13:47:23,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:23,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386220525] [2023-08-27 13:47:23,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386220525] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:23,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367486587] [2023-08-27 13:47:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:23,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:23,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:23,659 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:23,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-27 13:47:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:23,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-27 13:47:23,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-27 13:47:23,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 13:47:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-27 13:47:23,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367486587] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 13:47:23,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 13:47:23,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 13 [2023-08-27 13:47:23,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418414245] [2023-08-27 13:47:23,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 13:47:23,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-27 13:47:23,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:23,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-27 13:47:23,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-08-27 13:47:23,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 836 [2023-08-27 13:47:23,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 112 transitions, 635 flow. Second operand has 14 states, 14 states have (on average 293.2857142857143) internal successors, (4106), 14 states have internal predecessors, (4106), 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) [2023-08-27 13:47:23,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:23,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 836 [2023-08-27 13:47:23,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:28,477 INFO L124 PetriNetUnfolderBase]: 25820/34298 cut-off events. [2023-08-27 13:47:28,477 INFO L125 PetriNetUnfolderBase]: For 1565/1565 co-relation queries the response was YES. [2023-08-27 13:47:28,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79408 conditions, 34298 events. 25820/34298 cut-off events. For 1565/1565 co-relation queries the response was YES. Maximal size of possible extension queue 2004. Compared 202843 event pairs, 16802 based on Foata normal form. 1/15731 useless extension candidates. Maximal degree in co-relation 79234. Up to 15422 conditions per place. [2023-08-27 13:47:28,645 INFO L140 encePairwiseOnDemand]: 824/836 looper letters, 188 selfloop transitions, 37 changer transitions 0/228 dead transitions. [2023-08-27 13:47:28,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 228 transitions, 1384 flow [2023-08-27 13:47:28,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-27 13:47:28,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-27 13:47:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3690 transitions. [2023-08-27 13:47:28,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36782296650717705 [2023-08-27 13:47:28,651 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3690 transitions. [2023-08-27 13:47:28,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3690 transitions. [2023-08-27 13:47:28,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:28,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3690 transitions. [2023-08-27 13:47:28,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 307.5) internal successors, (3690), 12 states have internal predecessors, (3690), 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) [2023-08-27 13:47:28,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 836.0) internal successors, (10868), 13 states have internal predecessors, (10868), 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) [2023-08-27 13:47:28,670 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 836.0) internal successors, (10868), 13 states have internal predecessors, (10868), 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) [2023-08-27 13:47:28,671 INFO L175 Difference]: Start difference. First operand has 86 places, 112 transitions, 635 flow. Second operand 12 states and 3690 transitions. [2023-08-27 13:47:28,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 228 transitions, 1384 flow [2023-08-27 13:47:28,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 228 transitions, 1355 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 13:47:28,698 INFO L231 Difference]: Finished difference. Result has 96 places, 117 transitions, 730 flow [2023-08-27 13:47:28,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=730, PETRI_PLACES=96, PETRI_TRANSITIONS=117} [2023-08-27 13:47:28,699 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 23 predicate places. [2023-08-27 13:47:28,699 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 117 transitions, 730 flow [2023-08-27 13:47:28,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 293.2857142857143) internal successors, (4106), 14 states have internal predecessors, (4106), 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) [2023-08-27 13:47:28,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:28,700 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2023-08-27 13:47:28,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-27 13:47:28,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:28,906 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:28,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:28,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1502856249, now seen corresponding path program 1 times [2023-08-27 13:47:28,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:28,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147368858] [2023-08-27 13:47:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:28,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:28,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:28,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:28,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147368858] [2023-08-27 13:47:28,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147368858] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:28,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292170435] [2023-08-27 13:47:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:28,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:28,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:28,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:29,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-27 13:47:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:29,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 13:47:29,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:29,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 13:47:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:29,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292170435] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 13:47:29,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 13:47:29,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-08-27 13:47:29,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874364843] [2023-08-27 13:47:29,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 13:47:29,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-27 13:47:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:29,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-27 13:47:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-08-27 13:47:29,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 836 [2023-08-27 13:47:29,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 117 transitions, 730 flow. Second operand has 9 states, 9 states have (on average 331.1111111111111) internal successors, (2980), 9 states have internal predecessors, (2980), 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) [2023-08-27 13:47:29,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:29,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 836 [2023-08-27 13:47:29,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:33,307 INFO L124 PetriNetUnfolderBase]: 25878/34389 cut-off events. [2023-08-27 13:47:33,308 INFO L125 PetriNetUnfolderBase]: For 5878/5878 co-relation queries the response was YES. [2023-08-27 13:47:33,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82009 conditions, 34389 events. 25878/34389 cut-off events. For 5878/5878 co-relation queries the response was YES. Maximal size of possible extension queue 2006. Compared 206166 event pairs, 17656 based on Foata normal form. 0/17159 useless extension candidates. Maximal degree in co-relation 81702. Up to 34257 conditions per place. [2023-08-27 13:47:33,444 INFO L140 encePairwiseOnDemand]: 832/836 looper letters, 132 selfloop transitions, 50 changer transitions 0/185 dead transitions. [2023-08-27 13:47:33,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 185 transitions, 1640 flow [2023-08-27 13:47:33,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-27 13:47:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-27 13:47:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2722 transitions. [2023-08-27 13:47:33,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4069976076555024 [2023-08-27 13:47:33,450 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2722 transitions. [2023-08-27 13:47:33,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2722 transitions. [2023-08-27 13:47:33,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:33,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2722 transitions. [2023-08-27 13:47:33,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 340.25) internal successors, (2722), 8 states have internal predecessors, (2722), 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) [2023-08-27 13:47:33,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 836.0) internal successors, (7524), 9 states have internal predecessors, (7524), 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) [2023-08-27 13:47:33,463 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 836.0) internal successors, (7524), 9 states have internal predecessors, (7524), 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) [2023-08-27 13:47:33,463 INFO L175 Difference]: Start difference. First operand has 96 places, 117 transitions, 730 flow. Second operand 8 states and 2722 transitions. [2023-08-27 13:47:33,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 185 transitions, 1640 flow [2023-08-27 13:47:33,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 185 transitions, 1589 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-27 13:47:33,501 INFO L231 Difference]: Finished difference. Result has 104 places, 145 transitions, 1161 flow [2023-08-27 13:47:33,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1161, PETRI_PLACES=104, PETRI_TRANSITIONS=145} [2023-08-27 13:47:33,502 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 31 predicate places. [2023-08-27 13:47:33,502 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 145 transitions, 1161 flow [2023-08-27 13:47:33,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 331.1111111111111) internal successors, (2980), 9 states have internal predecessors, (2980), 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) [2023-08-27 13:47:33,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:33,503 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1] [2023-08-27 13:47:33,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-27 13:47:33,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:33,712 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:33,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:33,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1439998044, now seen corresponding path program 2 times [2023-08-27 13:47:33,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:33,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693817351] [2023-08-27 13:47:33,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:33,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-27 13:47:33,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:33,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693817351] [2023-08-27 13:47:33,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693817351] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:33,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490067304] [2023-08-27 13:47:33,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 13:47:33,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:33,845 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:33,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-27 13:47:34,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 13:47:34,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 13:47:34,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-27 13:47:34,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-27 13:47:34,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 13:47:34,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490067304] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:34,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 13:47:34,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-08-27 13:47:34,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952820502] [2023-08-27 13:47:34,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:34,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 13:47:34,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 13:47:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-08-27 13:47:34,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 836 [2023-08-27 13:47:34,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 145 transitions, 1161 flow. Second operand has 4 states, 4 states have (on average 308.25) internal successors, (1233), 4 states have internal predecessors, (1233), 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) [2023-08-27 13:47:34,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:34,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 836 [2023-08-27 13:47:34,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:39,736 INFO L124 PetriNetUnfolderBase]: 33694/44770 cut-off events. [2023-08-27 13:47:39,736 INFO L125 PetriNetUnfolderBase]: For 8584/8584 co-relation queries the response was YES. [2023-08-27 13:47:39,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103732 conditions, 44770 events. 33694/44770 cut-off events. For 8584/8584 co-relation queries the response was YES. Maximal size of possible extension queue 2522. Compared 275943 event pairs, 22957 based on Foata normal form. 2128/23127 useless extension candidates. Maximal degree in co-relation 103417. Up to 27499 conditions per place. [2023-08-27 13:47:39,961 INFO L140 encePairwiseOnDemand]: 832/836 looper letters, 179 selfloop transitions, 3 changer transitions 0/185 dead transitions. [2023-08-27 13:47:39,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 185 transitions, 1604 flow [2023-08-27 13:47:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 13:47:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 13:47:39,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1330 transitions. [2023-08-27 13:47:39,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3977272727272727 [2023-08-27 13:47:39,964 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1330 transitions. [2023-08-27 13:47:39,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1330 transitions. [2023-08-27 13:47:39,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:39,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1330 transitions. [2023-08-27 13:47:39,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 332.5) internal successors, (1330), 4 states have internal predecessors, (1330), 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) [2023-08-27 13:47:39,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:39,970 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:39,970 INFO L175 Difference]: Start difference. First operand has 104 places, 145 transitions, 1161 flow. Second operand 4 states and 1330 transitions. [2023-08-27 13:47:39,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 185 transitions, 1604 flow [2023-08-27 13:47:40,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 185 transitions, 1478 flow, removed 45 selfloop flow, removed 4 redundant places. [2023-08-27 13:47:40,011 INFO L231 Difference]: Finished difference. Result has 100 places, 142 transitions, 1016 flow [2023-08-27 13:47:40,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=1010, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1016, PETRI_PLACES=100, PETRI_TRANSITIONS=142} [2023-08-27 13:47:40,012 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 27 predicate places. [2023-08-27 13:47:40,012 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 142 transitions, 1016 flow [2023-08-27 13:47:40,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 308.25) internal successors, (1233), 4 states have internal predecessors, (1233), 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) [2023-08-27 13:47:40,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:40,013 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-27 13:47:40,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-27 13:47:40,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:40,219 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:40,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:40,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1462626391, now seen corresponding path program 1 times [2023-08-27 13:47:40,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:40,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974263636] [2023-08-27 13:47:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:40,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:40,341 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:40,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:40,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974263636] [2023-08-27 13:47:40,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974263636] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:47:40,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339726403] [2023-08-27 13:47:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:40,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:47:40,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:47:40,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:47:40,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-27 13:47:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:40,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-27 13:47:40,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:47:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:40,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 13:47:40,602 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:40,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339726403] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 13:47:40,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 13:47:40,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-27 13:47:40,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928939817] [2023-08-27 13:47:40,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 13:47:40,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-27 13:47:40,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:40,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-27 13:47:40,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-27 13:47:40,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 836 [2023-08-27 13:47:40,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 142 transitions, 1016 flow. Second operand has 13 states, 13 states have (on average 314.3076923076923) internal successors, (4086), 13 states have internal predecessors, (4086), 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) [2023-08-27 13:47:40,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:40,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 836 [2023-08-27 13:47:40,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:46,623 INFO L124 PetriNetUnfolderBase]: 33781/44908 cut-off events. [2023-08-27 13:47:46,623 INFO L125 PetriNetUnfolderBase]: For 3190/3190 co-relation queries the response was YES. [2023-08-27 13:47:46,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104338 conditions, 44908 events. 33781/44908 cut-off events. For 3190/3190 co-relation queries the response was YES. Maximal size of possible extension queue 2473. Compared 278078 event pairs, 22966 based on Foata normal form. 42/21110 useless extension candidates. Maximal degree in co-relation 103826. Up to 44737 conditions per place. [2023-08-27 13:47:46,851 INFO L140 encePairwiseOnDemand]: 826/836 looper letters, 67 selfloop transitions, 150 changer transitions 0/220 dead transitions. [2023-08-27 13:47:46,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 220 transitions, 2218 flow [2023-08-27 13:47:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-27 13:47:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-27 13:47:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3886 transitions. [2023-08-27 13:47:46,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3873604465709729 [2023-08-27 13:47:46,857 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3886 transitions. [2023-08-27 13:47:46,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3886 transitions. [2023-08-27 13:47:46,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:46,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3886 transitions. [2023-08-27 13:47:46,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 323.8333333333333) internal successors, (3886), 12 states have internal predecessors, (3886), 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) [2023-08-27 13:47:46,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 836.0) internal successors, (10868), 13 states have internal predecessors, (10868), 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) [2023-08-27 13:47:46,871 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 836.0) internal successors, (10868), 13 states have internal predecessors, (10868), 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) [2023-08-27 13:47:46,871 INFO L175 Difference]: Start difference. First operand has 100 places, 142 transitions, 1016 flow. Second operand 12 states and 3886 transitions. [2023-08-27 13:47:46,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 220 transitions, 2218 flow [2023-08-27 13:47:46,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 220 transitions, 2217 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:47:46,935 INFO L231 Difference]: Finished difference. Result has 116 places, 220 transitions, 2239 flow [2023-08-27 13:47:46,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=1015, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2239, PETRI_PLACES=116, PETRI_TRANSITIONS=220} [2023-08-27 13:47:46,936 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 43 predicate places. [2023-08-27 13:47:46,936 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 220 transitions, 2239 flow [2023-08-27 13:47:46,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 314.3076923076923) internal successors, (4086), 13 states have internal predecessors, (4086), 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) [2023-08-27 13:47:46,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:46,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:47:46,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-27 13:47:47,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-27 13:47:47,143 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:47,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:47,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1053086807, now seen corresponding path program 1 times [2023-08-27 13:47:47,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:47,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499785856] [2023-08-27 13:47:47,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:47,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:47,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:47,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499785856] [2023-08-27 13:47:47,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499785856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:47,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:47,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 13:47:47,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104533740] [2023-08-27 13:47:47,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:47,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 13:47:47,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:47,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 13:47:47,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 13:47:47,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 836 [2023-08-27 13:47:47,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 220 transitions, 2239 flow. Second operand has 4 states, 4 states have (on average 324.5) internal successors, (1298), 4 states have internal predecessors, (1298), 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) [2023-08-27 13:47:47,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:47,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 836 [2023-08-27 13:47:47,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:50,854 INFO L124 PetriNetUnfolderBase]: 17410/24172 cut-off events. [2023-08-27 13:47:50,854 INFO L125 PetriNetUnfolderBase]: For 2147/2147 co-relation queries the response was YES. [2023-08-27 13:47:50,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54598 conditions, 24172 events. 17410/24172 cut-off events. For 2147/2147 co-relation queries the response was YES. Maximal size of possible extension queue 1297. Compared 149500 event pairs, 12889 based on Foata normal form. 702/13503 useless extension candidates. Maximal degree in co-relation 54162. Up to 17278 conditions per place. [2023-08-27 13:47:50,956 INFO L140 encePairwiseOnDemand]: 826/836 looper letters, 237 selfloop transitions, 27 changer transitions 0/267 dead transitions. [2023-08-27 13:47:50,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 267 transitions, 2938 flow [2023-08-27 13:47:50,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 13:47:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 13:47:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1390 transitions. [2023-08-27 13:47:50,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41566985645933013 [2023-08-27 13:47:50,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1390 transitions. [2023-08-27 13:47:50,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1390 transitions. [2023-08-27 13:47:50,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:50,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1390 transitions. [2023-08-27 13:47:50,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 347.5) internal successors, (1390), 4 states have internal predecessors, (1390), 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) [2023-08-27 13:47:50,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:50,964 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:47:50,964 INFO L175 Difference]: Start difference. First operand has 116 places, 220 transitions, 2239 flow. Second operand 4 states and 1390 transitions. [2023-08-27 13:47:50,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 267 transitions, 2938 flow [2023-08-27 13:47:50,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 267 transitions, 2438 flow, removed 169 selfloop flow, removed 5 redundant places. [2023-08-27 13:47:50,984 INFO L231 Difference]: Finished difference. Result has 115 places, 220 transitions, 1853 flow [2023-08-27 13:47:50,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=1771, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1853, PETRI_PLACES=115, PETRI_TRANSITIONS=220} [2023-08-27 13:47:50,985 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 42 predicate places. [2023-08-27 13:47:50,985 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 220 transitions, 1853 flow [2023-08-27 13:47:50,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 324.5) internal successors, (1298), 4 states have internal predecessors, (1298), 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) [2023-08-27 13:47:50,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:50,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:47:50,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 13:47:50,986 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:50,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:50,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2041643891, now seen corresponding path program 1 times [2023-08-27 13:47:50,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:50,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470205530] [2023-08-27 13:47:50,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:50,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:47:51,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:51,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470205530] [2023-08-27 13:47:51,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470205530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:51,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:51,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 13:47:51,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036330633] [2023-08-27 13:47:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:51,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:47:51,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:47:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:47:51,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 836 [2023-08-27 13:47:51,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 220 transitions, 1853 flow. Second operand has 5 states, 5 states have (on average 286.2) internal successors, (1431), 5 states have internal predecessors, (1431), 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) [2023-08-27 13:47:51,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:51,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 836 [2023-08-27 13:47:51,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:54,368 INFO L124 PetriNetUnfolderBase]: 17037/23910 cut-off events. [2023-08-27 13:47:54,368 INFO L125 PetriNetUnfolderBase]: For 2816/2816 co-relation queries the response was YES. [2023-08-27 13:47:54,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58836 conditions, 23910 events. 17037/23910 cut-off events. For 2816/2816 co-relation queries the response was YES. Maximal size of possible extension queue 1346. Compared 148723 event pairs, 12897 based on Foata normal form. 13/12952 useless extension candidates. Maximal degree in co-relation 58172. Up to 23636 conditions per place. [2023-08-27 13:47:54,481 INFO L140 encePairwiseOnDemand]: 830/836 looper letters, 316 selfloop transitions, 18 changer transitions 0/336 dead transitions. [2023-08-27 13:47:54,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 336 transitions, 3752 flow [2023-08-27 13:47:54,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 13:47:54,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 13:47:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1486 transitions. [2023-08-27 13:47:54,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3555023923444976 [2023-08-27 13:47:54,483 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1486 transitions. [2023-08-27 13:47:54,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1486 transitions. [2023-08-27 13:47:54,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:54,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1486 transitions. [2023-08-27 13:47:54,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 297.2) internal successors, (1486), 5 states have internal predecessors, (1486), 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) [2023-08-27 13:47:54,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 836.0) internal successors, (5016), 6 states have internal predecessors, (5016), 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) [2023-08-27 13:47:54,490 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 836.0) internal successors, (5016), 6 states have internal predecessors, (5016), 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) [2023-08-27 13:47:54,490 INFO L175 Difference]: Start difference. First operand has 115 places, 220 transitions, 1853 flow. Second operand 5 states and 1486 transitions. [2023-08-27 13:47:54,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 336 transitions, 3752 flow [2023-08-27 13:47:54,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 336 transitions, 3676 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 13:47:54,546 INFO L231 Difference]: Finished difference. Result has 117 places, 220 transitions, 1854 flow [2023-08-27 13:47:54,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=1799, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1854, PETRI_PLACES=117, PETRI_TRANSITIONS=220} [2023-08-27 13:47:54,546 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 44 predicate places. [2023-08-27 13:47:54,547 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 220 transitions, 1854 flow [2023-08-27 13:47:54,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 286.2) internal successors, (1431), 5 states have internal predecessors, (1431), 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) [2023-08-27 13:47:54,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:54,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:47:54,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 13:47:54,547 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:54,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1746041549, now seen corresponding path program 1 times [2023-08-27 13:47:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:54,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526053985] [2023-08-27 13:47:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:54,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 13:47:54,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:54,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526053985] [2023-08-27 13:47:54,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526053985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:54,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:54,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-27 13:47:54,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248367640] [2023-08-27 13:47:54,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:54,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 13:47:54,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:54,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 13:47:54,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-27 13:47:54,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 836 [2023-08-27 13:47:54,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 220 transitions, 1854 flow. Second operand has 7 states, 7 states have (on average 277.85714285714283) internal successors, (1945), 7 states have internal predecessors, (1945), 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) [2023-08-27 13:47:54,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:54,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 836 [2023-08-27 13:47:54,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:47:58,636 INFO L124 PetriNetUnfolderBase]: 18323/26018 cut-off events. [2023-08-27 13:47:58,637 INFO L125 PetriNetUnfolderBase]: For 3468/3468 co-relation queries the response was YES. [2023-08-27 13:47:58,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63136 conditions, 26018 events. 18323/26018 cut-off events. For 3468/3468 co-relation queries the response was YES. Maximal size of possible extension queue 1485. Compared 168798 event pairs, 12537 based on Foata normal form. 318/14971 useless extension candidates. Maximal degree in co-relation 62475. Up to 17153 conditions per place. [2023-08-27 13:47:58,825 INFO L140 encePairwiseOnDemand]: 826/836 looper letters, 316 selfloop transitions, 37 changer transitions 4/359 dead transitions. [2023-08-27 13:47:58,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 359 transitions, 2901 flow [2023-08-27 13:47:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 13:47:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 13:47:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2675 transitions. [2023-08-27 13:47:58,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3555289739500266 [2023-08-27 13:47:58,829 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2675 transitions. [2023-08-27 13:47:58,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2675 transitions. [2023-08-27 13:47:58,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:47:58,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2675 transitions. [2023-08-27 13:47:58,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 297.22222222222223) internal successors, (2675), 9 states have internal predecessors, (2675), 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) [2023-08-27 13:47:58,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 836.0) internal successors, (8360), 10 states have internal predecessors, (8360), 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) [2023-08-27 13:47:58,837 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 836.0) internal successors, (8360), 10 states have internal predecessors, (8360), 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) [2023-08-27 13:47:58,837 INFO L175 Difference]: Start difference. First operand has 117 places, 220 transitions, 1854 flow. Second operand 9 states and 2675 transitions. [2023-08-27 13:47:58,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 359 transitions, 2901 flow [2023-08-27 13:47:58,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 359 transitions, 2882 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 13:47:58,879 INFO L231 Difference]: Finished difference. Result has 129 places, 231 transitions, 1989 flow [2023-08-27 13:47:58,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=1835, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1989, PETRI_PLACES=129, PETRI_TRANSITIONS=231} [2023-08-27 13:47:58,879 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 56 predicate places. [2023-08-27 13:47:58,879 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 231 transitions, 1989 flow [2023-08-27 13:47:58,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 277.85714285714283) internal successors, (1945), 7 states have internal predecessors, (1945), 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) [2023-08-27 13:47:58,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:47:58,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:47:58,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 13:47:58,880 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:47:58,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:47:58,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1765397524, now seen corresponding path program 1 times [2023-08-27 13:47:58,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:47:58,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466329992] [2023-08-27 13:47:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:47:58,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:47:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:47:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 13:47:59,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:47:59,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466329992] [2023-08-27 13:47:59,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466329992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:47:59,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:47:59,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:47:59,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294378724] [2023-08-27 13:47:59,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:47:59,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:47:59,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:47:59,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:47:59,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:47:59,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 836 [2023-08-27 13:47:59,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 231 transitions, 1989 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 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) [2023-08-27 13:47:59,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:47:59,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 836 [2023-08-27 13:47:59,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:48:05,412 INFO L124 PetriNetUnfolderBase]: 30083/42106 cut-off events. [2023-08-27 13:48:05,413 INFO L125 PetriNetUnfolderBase]: For 16463/16467 co-relation queries the response was YES. [2023-08-27 13:48:05,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111668 conditions, 42106 events. 30083/42106 cut-off events. For 16463/16467 co-relation queries the response was YES. Maximal size of possible extension queue 1774. Compared 278421 event pairs, 10645 based on Foata normal form. 0/24219 useless extension candidates. Maximal degree in co-relation 110994. Up to 22843 conditions per place. [2023-08-27 13:48:05,745 INFO L140 encePairwiseOnDemand]: 830/836 looper letters, 271 selfloop transitions, 5 changer transitions 0/279 dead transitions. [2023-08-27 13:48:05,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 279 transitions, 2714 flow [2023-08-27 13:48:05,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:48:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:48:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1101 transitions. [2023-08-27 13:48:05,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43899521531100477 [2023-08-27 13:48:05,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1101 transitions. [2023-08-27 13:48:05,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1101 transitions. [2023-08-27 13:48:05,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:48:05,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1101 transitions. [2023-08-27 13:48:05,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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) [2023-08-27 13:48:05,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:48:05,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:48:05,753 INFO L175 Difference]: Start difference. First operand has 129 places, 231 transitions, 1989 flow. Second operand 3 states and 1101 transitions. [2023-08-27 13:48:05,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 279 transitions, 2714 flow [2023-08-27 13:48:05,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 279 transitions, 2688 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:48:05,845 INFO L231 Difference]: Finished difference. Result has 132 places, 235 transitions, 2001 flow [2023-08-27 13:48:05,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=1963, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2001, PETRI_PLACES=132, PETRI_TRANSITIONS=235} [2023-08-27 13:48:05,846 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 59 predicate places. [2023-08-27 13:48:05,846 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 235 transitions, 2001 flow [2023-08-27 13:48:05,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 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) [2023-08-27 13:48:05,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:48:05,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:48:05,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 13:48:05,847 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:48:05,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:48:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1765397527, now seen corresponding path program 1 times [2023-08-27 13:48:05,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:48:05,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031836367] [2023-08-27 13:48:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:48:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:48:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:48:06,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 13:48:06,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:48:06,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031836367] [2023-08-27 13:48:06,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031836367] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:48:06,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:48:06,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-27 13:48:06,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403874249] [2023-08-27 13:48:06,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:48:06,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-27 13:48:06,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:48:06,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-27 13:48:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-27 13:48:06,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 836 [2023-08-27 13:48:06,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 235 transitions, 2001 flow. Second operand has 10 states, 10 states have (on average 265.4) internal successors, (2654), 10 states have internal predecessors, (2654), 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) [2023-08-27 13:48:06,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:48:06,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 836 [2023-08-27 13:48:06,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:48:12,277 INFO L124 PetriNetUnfolderBase]: 28375/39634 cut-off events. [2023-08-27 13:48:12,277 INFO L125 PetriNetUnfolderBase]: For 17972/17972 co-relation queries the response was YES. [2023-08-27 13:48:12,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110662 conditions, 39634 events. 28375/39634 cut-off events. For 17972/17972 co-relation queries the response was YES. Maximal size of possible extension queue 1754. Compared 260494 event pairs, 18679 based on Foata normal form. 158/24652 useless extension candidates. Maximal degree in co-relation 109988. Up to 28908 conditions per place. [2023-08-27 13:48:12,623 INFO L140 encePairwiseOnDemand]: 826/836 looper letters, 307 selfloop transitions, 52 changer transitions 4/365 dead transitions. [2023-08-27 13:48:12,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 365 transitions, 3102 flow [2023-08-27 13:48:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-27 13:48:12,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-27 13:48:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3090 transitions. [2023-08-27 13:48:12,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3360156589821662 [2023-08-27 13:48:12,627 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3090 transitions. [2023-08-27 13:48:12,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3090 transitions. [2023-08-27 13:48:12,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:48:12,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3090 transitions. [2023-08-27 13:48:12,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 280.90909090909093) internal successors, (3090), 11 states have internal predecessors, (3090), 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) [2023-08-27 13:48:12,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 836.0) internal successors, (10032), 12 states have internal predecessors, (10032), 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) [2023-08-27 13:48:12,637 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 836.0) internal successors, (10032), 12 states have internal predecessors, (10032), 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) [2023-08-27 13:48:12,637 INFO L175 Difference]: Start difference. First operand has 132 places, 235 transitions, 2001 flow. Second operand 11 states and 3090 transitions. [2023-08-27 13:48:12,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 365 transitions, 3102 flow [2023-08-27 13:48:12,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 365 transitions, 3086 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 13:48:12,787 INFO L231 Difference]: Finished difference. Result has 145 places, 243 transitions, 2188 flow [2023-08-27 13:48:12,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=1991, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2188, PETRI_PLACES=145, PETRI_TRANSITIONS=243} [2023-08-27 13:48:12,787 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 72 predicate places. [2023-08-27 13:48:12,787 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 243 transitions, 2188 flow [2023-08-27 13:48:12,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 265.4) internal successors, (2654), 10 states have internal predecessors, (2654), 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) [2023-08-27 13:48:12,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:48:12,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:48:12,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 13:48:12,788 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:48:12,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:48:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash -483675537, now seen corresponding path program 1 times [2023-08-27 13:48:12,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:48:12,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048160094] [2023-08-27 13:48:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:48:12,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:48:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:48:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-27 13:48:12,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:48:12,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048160094] [2023-08-27 13:48:12,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048160094] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:48:12,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:48:12,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 13:48:12,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908662090] [2023-08-27 13:48:12,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:48:12,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:48:12,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:48:12,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:48:12,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:48:12,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 836 [2023-08-27 13:48:12,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 243 transitions, 2188 flow. Second operand has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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) [2023-08-27 13:48:12,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:48:12,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 836 [2023-08-27 13:48:12,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:48:18,733 INFO L124 PetriNetUnfolderBase]: 27849/39092 cut-off events. [2023-08-27 13:48:18,733 INFO L125 PetriNetUnfolderBase]: For 37480/37480 co-relation queries the response was YES. [2023-08-27 13:48:18,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114897 conditions, 39092 events. 27849/39092 cut-off events. For 37480/37480 co-relation queries the response was YES. Maximal size of possible extension queue 1594. Compared 252977 event pairs, 13868 based on Foata normal form. 0/23747 useless extension candidates. Maximal degree in co-relation 114210. Up to 22876 conditions per place. [2023-08-27 13:48:19,069 INFO L140 encePairwiseOnDemand]: 831/836 looper letters, 272 selfloop transitions, 3 changer transitions 0/277 dead transitions. [2023-08-27 13:48:19,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 277 transitions, 2893 flow [2023-08-27 13:48:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:48:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:48:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1071 transitions. [2023-08-27 13:48:19,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4270334928229665 [2023-08-27 13:48:19,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1071 transitions. [2023-08-27 13:48:19,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1071 transitions. [2023-08-27 13:48:19,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:48:19,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1071 transitions. [2023-08-27 13:48:19,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 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) [2023-08-27 13:48:19,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:48:19,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:48:19,074 INFO L175 Difference]: Start difference. First operand has 145 places, 243 transitions, 2188 flow. Second operand 3 states and 1071 transitions. [2023-08-27 13:48:19,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 277 transitions, 2893 flow [2023-08-27 13:48:19,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 277 transitions, 2840 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-27 13:48:19,178 INFO L231 Difference]: Finished difference. Result has 145 places, 242 transitions, 2140 flow [2023-08-27 13:48:19,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=2127, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2140, PETRI_PLACES=145, PETRI_TRANSITIONS=242} [2023-08-27 13:48:19,178 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 72 predicate places. [2023-08-27 13:48:19,178 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 242 transitions, 2140 flow [2023-08-27 13:48:19,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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) [2023-08-27 13:48:19,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:48:19,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:48:19,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 13:48:19,179 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:48:19,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:48:19,179 INFO L85 PathProgramCache]: Analyzing trace with hash -483675661, now seen corresponding path program 1 times [2023-08-27 13:48:19,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:48:19,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685462571] [2023-08-27 13:48:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:48:19,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:48:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:48:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 13:48:19,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:48:19,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685462571] [2023-08-27 13:48:19,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685462571] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:48:19,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:48:19,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 13:48:19,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538800688] [2023-08-27 13:48:19,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:48:19,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 13:48:19,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:48:19,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 13:48:19,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 13:48:19,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 836 [2023-08-27 13:48:19,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 242 transitions, 2140 flow. Second operand has 5 states, 5 states have (on average 264.0) internal successors, (1320), 5 states have internal predecessors, (1320), 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) [2023-08-27 13:48:19,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:48:19,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 836 [2023-08-27 13:48:19,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:48:25,245 INFO L124 PetriNetUnfolderBase]: 27672/38974 cut-off events. [2023-08-27 13:48:25,246 INFO L125 PetriNetUnfolderBase]: For 37302/37302 co-relation queries the response was YES. [2023-08-27 13:48:25,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116345 conditions, 38974 events. 27672/38974 cut-off events. For 37302/37302 co-relation queries the response was YES. Maximal size of possible extension queue 1570. Compared 258622 event pairs, 20493 based on Foata normal form. 159/24254 useless extension candidates. Maximal degree in co-relation 115659. Up to 33144 conditions per place. [2023-08-27 13:48:25,616 INFO L140 encePairwiseOnDemand]: 823/836 looper letters, 249 selfloop transitions, 55 changer transitions 0/306 dead transitions. [2023-08-27 13:48:25,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 306 transitions, 2984 flow [2023-08-27 13:48:25,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 13:48:25,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 13:48:25,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1689 transitions. [2023-08-27 13:48:25,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33672248803827753 [2023-08-27 13:48:25,618 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1689 transitions. [2023-08-27 13:48:25,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1689 transitions. [2023-08-27 13:48:25,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:48:25,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1689 transitions. [2023-08-27 13:48:25,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 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) [2023-08-27 13:48:25,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 836.0) internal successors, (5852), 7 states have internal predecessors, (5852), 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) [2023-08-27 13:48:25,624 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 836.0) internal successors, (5852), 7 states have internal predecessors, (5852), 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) [2023-08-27 13:48:25,624 INFO L175 Difference]: Start difference. First operand has 145 places, 242 transitions, 2140 flow. Second operand 6 states and 1689 transitions. [2023-08-27 13:48:25,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 306 transitions, 2984 flow [2023-08-27 13:48:25,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 306 transitions, 2978 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:48:25,746 INFO L231 Difference]: Finished difference. Result has 151 places, 245 transitions, 2326 flow [2023-08-27 13:48:25,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=2137, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2326, PETRI_PLACES=151, PETRI_TRANSITIONS=245} [2023-08-27 13:48:25,746 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 78 predicate places. [2023-08-27 13:48:25,746 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 245 transitions, 2326 flow [2023-08-27 13:48:25,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 264.0) internal successors, (1320), 5 states have internal predecessors, (1320), 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) [2023-08-27 13:48:25,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:48:25,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:48:25,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 13:48:25,747 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:48:25,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:48:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash -153321121, now seen corresponding path program 1 times [2023-08-27 13:48:25,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:48:25,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734194010] [2023-08-27 13:48:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:48:25,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:48:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:48:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 13:48:25,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:48:25,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734194010] [2023-08-27 13:48:25,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734194010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:48:25,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:48:25,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 13:48:25,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592436692] [2023-08-27 13:48:25,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:48:25,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:48:25,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:48:25,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:48:25,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:48:25,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 836 [2023-08-27 13:48:25,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 245 transitions, 2326 flow. Second operand has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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) [2023-08-27 13:48:25,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:48:25,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 836 [2023-08-27 13:48:25,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:48:35,187 INFO L124 PetriNetUnfolderBase]: 44211/62165 cut-off events. [2023-08-27 13:48:35,187 INFO L125 PetriNetUnfolderBase]: For 89070/89863 co-relation queries the response was YES. [2023-08-27 13:48:35,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188336 conditions, 62165 events. 44211/62165 cut-off events. For 89070/89863 co-relation queries the response was YES. Maximal size of possible extension queue 2228. Compared 431716 event pairs, 19863 based on Foata normal form. 793/39935 useless extension candidates. Maximal degree in co-relation 187640. Up to 37272 conditions per place. [2023-08-27 13:48:35,871 INFO L140 encePairwiseOnDemand]: 831/836 looper letters, 294 selfloop transitions, 3 changer transitions 0/299 dead transitions. [2023-08-27 13:48:35,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 299 transitions, 3241 flow [2023-08-27 13:48:35,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:48:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:48:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1072 transitions. [2023-08-27 13:48:35,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4274322169059011 [2023-08-27 13:48:35,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1072 transitions. [2023-08-27 13:48:35,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1072 transitions. [2023-08-27 13:48:35,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:48:35,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1072 transitions. [2023-08-27 13:48:35,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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) [2023-08-27 13:48:35,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:48:35,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:48:35,876 INFO L175 Difference]: Start difference. First operand has 151 places, 245 transitions, 2326 flow. Second operand 3 states and 1072 transitions. [2023-08-27 13:48:35,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 299 transitions, 3241 flow [2023-08-27 13:48:36,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 299 transitions, 3148 flow, removed 15 selfloop flow, removed 3 redundant places. [2023-08-27 13:48:36,015 INFO L231 Difference]: Finished difference. Result has 151 places, 247 transitions, 2268 flow [2023-08-27 13:48:36,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2268, PETRI_PLACES=151, PETRI_TRANSITIONS=247} [2023-08-27 13:48:36,015 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 78 predicate places. [2023-08-27 13:48:36,015 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 247 transitions, 2268 flow [2023-08-27 13:48:36,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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) [2023-08-27 13:48:36,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:48:36,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:48:36,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 13:48:36,016 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:48:36,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:48:36,016 INFO L85 PathProgramCache]: Analyzing trace with hash -153321162, now seen corresponding path program 1 times [2023-08-27 13:48:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:48:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201257802] [2023-08-27 13:48:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:48:36,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:48:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:48:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 13:48:36,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:48:36,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201257802] [2023-08-27 13:48:36,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201257802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:48:36,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:48:36,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-27 13:48:36,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699969690] [2023-08-27 13:48:36,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:48:36,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 13:48:36,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:48:36,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 13:48:36,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-27 13:48:36,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 836 [2023-08-27 13:48:36,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 247 transitions, 2268 flow. Second operand has 7 states, 7 states have (on average 278.14285714285717) internal successors, (1947), 7 states have internal predecessors, (1947), 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) [2023-08-27 13:48:36,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:48:36,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 836 [2023-08-27 13:48:36,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:48:45,684 INFO L124 PetriNetUnfolderBase]: 42173/59395 cut-off events. [2023-08-27 13:48:45,685 INFO L125 PetriNetUnfolderBase]: For 77815/78557 co-relation queries the response was YES. [2023-08-27 13:48:46,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185250 conditions, 59395 events. 42173/59395 cut-off events. For 77815/78557 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 406199 event pairs, 29799 based on Foata normal form. 1440/42302 useless extension candidates. Maximal degree in co-relation 184557. Up to 46650 conditions per place. [2023-08-27 13:48:46,273 INFO L140 encePairwiseOnDemand]: 827/836 looper letters, 309 selfloop transitions, 42 changer transitions 64/417 dead transitions. [2023-08-27 13:48:46,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 417 transitions, 4103 flow [2023-08-27 13:48:46,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 13:48:46,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 13:48:46,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2655 transitions. [2023-08-27 13:48:46,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35287081339712917 [2023-08-27 13:48:46,277 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2655 transitions. [2023-08-27 13:48:46,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2655 transitions. [2023-08-27 13:48:46,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:48:46,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2655 transitions. [2023-08-27 13:48:46,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 295.0) internal successors, (2655), 9 states have internal predecessors, (2655), 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) [2023-08-27 13:48:46,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 836.0) internal successors, (8360), 10 states have internal predecessors, (8360), 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) [2023-08-27 13:48:46,286 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 836.0) internal successors, (8360), 10 states have internal predecessors, (8360), 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) [2023-08-27 13:48:46,286 INFO L175 Difference]: Start difference. First operand has 151 places, 247 transitions, 2268 flow. Second operand 9 states and 2655 transitions. [2023-08-27 13:48:46,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 417 transitions, 4103 flow [2023-08-27 13:48:46,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 417 transitions, 4097 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 13:48:46,468 INFO L231 Difference]: Finished difference. Result has 164 places, 258 transitions, 2483 flow [2023-08-27 13:48:46,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=2265, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2483, PETRI_PLACES=164, PETRI_TRANSITIONS=258} [2023-08-27 13:48:46,469 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 91 predicate places. [2023-08-27 13:48:46,469 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 258 transitions, 2483 flow [2023-08-27 13:48:46,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 278.14285714285717) internal successors, (1947), 7 states have internal predecessors, (1947), 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) [2023-08-27 13:48:46,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:48:46,470 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2023-08-27 13:48:46,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 13:48:46,470 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:48:46,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:48:46,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1344123209, now seen corresponding path program 2 times [2023-08-27 13:48:46,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:48:46,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424829396] [2023-08-27 13:48:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:48:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:48:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:48:46,699 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 13:48:46,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:48:46,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424829396] [2023-08-27 13:48:46,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424829396] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:48:46,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79756111] [2023-08-27 13:48:46,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 13:48:46,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:48:46,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:48:46,705 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:48:46,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-27 13:48:46,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 13:48:46,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 13:48:46,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-27 13:48:46,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:48:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-27 13:48:46,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 13:48:46,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79756111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:48:46,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 13:48:46,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2023-08-27 13:48:46,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256688508] [2023-08-27 13:48:46,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:48:46,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 13:48:46,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:48:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 13:48:46,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-08-27 13:48:46,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 836 [2023-08-27 13:48:46,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 258 transitions, 2483 flow. Second operand has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 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) [2023-08-27 13:48:46,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:48:46,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 836 [2023-08-27 13:48:46,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:48:55,971 INFO L124 PetriNetUnfolderBase]: 39657/55701 cut-off events. [2023-08-27 13:48:55,971 INFO L125 PetriNetUnfolderBase]: For 79352/80766 co-relation queries the response was YES. [2023-08-27 13:48:56,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182273 conditions, 55701 events. 39657/55701 cut-off events. For 79352/80766 co-relation queries the response was YES. Maximal size of possible extension queue 1826. Compared 379859 event pairs, 30361 based on Foata normal form. 1428/39229 useless extension candidates. Maximal degree in co-relation 181764. Up to 44566 conditions per place. [2023-08-27 13:48:56,634 INFO L140 encePairwiseOnDemand]: 832/836 looper letters, 268 selfloop transitions, 14 changer transitions 0/285 dead transitions. [2023-08-27 13:48:56,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 285 transitions, 3084 flow [2023-08-27 13:48:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 13:48:56,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 13:48:56,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1328 transitions. [2023-08-27 13:48:56,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39712918660287083 [2023-08-27 13:48:56,638 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1328 transitions. [2023-08-27 13:48:56,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1328 transitions. [2023-08-27 13:48:56,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:48:56,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1328 transitions. [2023-08-27 13:48:56,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 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) [2023-08-27 13:48:56,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:48:56,643 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 836.0) internal successors, (4180), 5 states have internal predecessors, (4180), 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) [2023-08-27 13:48:56,643 INFO L175 Difference]: Start difference. First operand has 164 places, 258 transitions, 2483 flow. Second operand 4 states and 1328 transitions. [2023-08-27 13:48:56,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 285 transitions, 3084 flow [2023-08-27 13:48:57,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 285 transitions, 2833 flow, removed 12 selfloop flow, removed 12 redundant places. [2023-08-27 13:48:57,014 INFO L231 Difference]: Finished difference. Result has 150 places, 255 transitions, 2181 flow [2023-08-27 13:48:57,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=2153, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2181, PETRI_PLACES=150, PETRI_TRANSITIONS=255} [2023-08-27 13:48:57,015 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 77 predicate places. [2023-08-27 13:48:57,015 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 255 transitions, 2181 flow [2023-08-27 13:48:57,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 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) [2023-08-27 13:48:57,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:48:57,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:48:57,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-27 13:48:57,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:48:57,217 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:48:57,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:48:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1016518784, now seen corresponding path program 1 times [2023-08-27 13:48:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:48:57,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870193834] [2023-08-27 13:48:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:48:57,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:48:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:48:57,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-27 13:48:57,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:48:57,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870193834] [2023-08-27 13:48:57,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870193834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 13:48:57,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 13:48:57,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 13:48:57,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433185889] [2023-08-27 13:48:57,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 13:48:57,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 13:48:57,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 13:48:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 13:48:57,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 13:48:57,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 836 [2023-08-27 13:48:57,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 255 transitions, 2181 flow. Second operand has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 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) [2023-08-27 13:48:57,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 13:48:57,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 836 [2023-08-27 13:48:57,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 13:49:05,144 INFO L124 PetriNetUnfolderBase]: 37842/53203 cut-off events. [2023-08-27 13:49:05,144 INFO L125 PetriNetUnfolderBase]: For 71538/72918 co-relation queries the response was YES. [2023-08-27 13:49:05,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174191 conditions, 53203 events. 37842/53203 cut-off events. For 71538/72918 co-relation queries the response was YES. Maximal size of possible extension queue 1703. Compared 360148 event pairs, 13955 based on Foata normal form. 2077/37968 useless extension candidates. Maximal degree in co-relation 173329. Up to 28457 conditions per place. [2023-08-27 13:49:05,622 INFO L140 encePairwiseOnDemand]: 833/836 looper letters, 292 selfloop transitions, 2 changer transitions 4/301 dead transitions. [2023-08-27 13:49:05,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 301 transitions, 3009 flow [2023-08-27 13:49:05,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 13:49:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 13:49:05,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1097 transitions. [2023-08-27 13:49:05,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43740031897926634 [2023-08-27 13:49:05,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1097 transitions. [2023-08-27 13:49:05,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1097 transitions. [2023-08-27 13:49:05,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 13:49:05,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1097 transitions. [2023-08-27 13:49:05,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 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) [2023-08-27 13:49:05,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:49:05,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 836.0) internal successors, (3344), 4 states have internal predecessors, (3344), 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) [2023-08-27 13:49:05,626 INFO L175 Difference]: Start difference. First operand has 150 places, 255 transitions, 2181 flow. Second operand 3 states and 1097 transitions. [2023-08-27 13:49:05,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 301 transitions, 3009 flow [2023-08-27 13:49:05,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 301 transitions, 2988 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 13:49:05,845 INFO L231 Difference]: Finished difference. Result has 148 places, 254 transitions, 2160 flow [2023-08-27 13:49:05,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=836, PETRI_DIFFERENCE_MINUEND_FLOW=2156, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2160, PETRI_PLACES=148, PETRI_TRANSITIONS=254} [2023-08-27 13:49:05,846 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 75 predicate places. [2023-08-27 13:49:05,846 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 254 transitions, 2160 flow [2023-08-27 13:49:05,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 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) [2023-08-27 13:49:05,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 13:49:05,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 13:49:05,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 13:49:05,846 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-08-27 13:49:05,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 13:49:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1016518781, now seen corresponding path program 1 times [2023-08-27 13:49:05,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 13:49:05,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400378981] [2023-08-27 13:49:05,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:49:05,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 13:49:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:49:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 13:49:07,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 13:49:07,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400378981] [2023-08-27 13:49:07,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400378981] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 13:49:07,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529135255] [2023-08-27 13:49:07,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 13:49:07,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 13:49:07,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 13:49:07,463 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 13:49:07,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-27 13:49:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 13:49:07,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 58 conjunts are in the unsatisfiable core [2023-08-27 13:49:07,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 13:49:07,787 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-27 13:49:07,839 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 13:49:07,839 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-27 13:49:07,893 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-08-27 13:49:07,995 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 13:49:08,010 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-08-27 13:49:08,017 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 13:49:08,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 13:49:08,098 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2023-08-27 13:49:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 13:49:08,110 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-08-27 13:49:08,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 13:49:08,119 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-08-27 13:49:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 13:49:08,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 13:49:09,250 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 13:49:09,251 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 108 [2023-08-27 13:49:09,264 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 13:49:09,264 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 96 [2023-08-27 13:49:09,284 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 13:49:09,284 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 172 [2023-08-27 13:49:09,304 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 13:49:09,304 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 298 treesize of output 268 [2023-08-27 13:49:09,318 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2023-08-27 13:49:09,327 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2023-08-27 13:49:09,453 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-27 13:49:15,964 WARN L234 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 104 DAG size of output: 93 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-27 13:49:16,126 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 13:49:16,127 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1408 treesize of output 845 Received shutdown request... [2023-08-27 14:00:23,537 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 14:00:23,538 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 14:00:23,550 WARN L266 SmtUtils]: Removed 218 from assertion stack [2023-08-27 14:00:23,552 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 60 remaining) [2023-08-27 14:00:23,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-27 14:00:23,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-27 14:00:23,753 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 60 remaining) [2023-08-27 14:00:23,755 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 60 remaining) [2023-08-27 14:00:23,756 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 60 remaining) [2023-08-27 14:00:23,757 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (26 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 60 remaining) [2023-08-27 14:00:23,758 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 60 remaining) [2023-08-27 14:00:23,759 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 60 remaining) [2023-08-27 14:00:23,760 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 60 remaining) [2023-08-27 14:00:23,760 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 60 remaining) [2023-08-27 14:00:23,760 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 60 remaining) [2023-08-27 14:00:23,760 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 60 remaining) [2023-08-27 14:00:23,760 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 60 remaining) [2023-08-27 14:00:23,760 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 60 remaining) [2023-08-27 14:00:23,760 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 60 remaining) [2023-08-27 14:00:23,761 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 14:00:23,766 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 14:00:23,766 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 14:00:23,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 02:00:23 BasicIcfg [2023-08-27 14:00:23,769 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 14:00:23,769 INFO L158 Benchmark]: Toolchain (without parser) took 834402.51ms. Allocated memory was 371.2MB in the beginning and 15.7GB in the end (delta: 15.3GB). Free memory was 329.1MB in the beginning and 10.3GB in the end (delta: -9.9GB). Peak memory consumption was 6.5GB. Max. memory is 16.0GB. [2023-08-27 14:00:23,769 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 371.2MB. Free memory was 348.9MB in the beginning and 348.8MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 14:00:23,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.91ms. Allocated memory is still 371.2MB. Free memory was 329.1MB in the beginning and 316.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 14:00:23,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.54ms. Allocated memory is still 371.2MB. Free memory was 316.5MB in the beginning and 313.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 14:00:23,770 INFO L158 Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 371.2MB. Free memory was 313.4MB in the beginning and 311.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 14:00:23,770 INFO L158 Benchmark]: RCFGBuilder took 1212.55ms. Allocated memory is still 371.2MB. Free memory was 310.2MB in the beginning and 189.6MB in the end (delta: 120.6MB). Peak memory consumption was 119.5MB. Max. memory is 16.0GB. [2023-08-27 14:00:23,770 INFO L158 Benchmark]: TraceAbstraction took 832780.60ms. Allocated memory was 371.2MB in the beginning and 15.7GB in the end (delta: 15.3GB). Free memory was 188.6MB in the beginning and 10.3GB in the end (delta: -10.1GB). Peak memory consumption was 6.3GB. Max. memory is 16.0GB. [2023-08-27 14:00:23,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 371.2MB. Free memory was 348.9MB in the beginning and 348.8MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 276.91ms. Allocated memory is still 371.2MB. Free memory was 329.1MB in the beginning and 316.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 68.54ms. Allocated memory is still 371.2MB. Free memory was 316.5MB in the beginning and 313.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 57.99ms. Allocated memory is still 371.2MB. Free memory was 313.4MB in the beginning and 311.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1212.55ms. Allocated memory is still 371.2MB. Free memory was 310.2MB in the beginning and 189.6MB in the end (delta: 120.6MB). Peak memory consumption was 119.5MB. Max. memory is 16.0GB. * TraceAbstraction took 832780.60ms. Allocated memory was 371.2MB in the beginning and 15.7GB in the end (delta: 15.3GB). Free memory was 188.6MB in the beginning and 10.3GB in the end (delta: -10.1GB). Peak memory consumption was 6.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.6s, 345 PlacesBefore, 73 PlacesAfterwards, 370 TransitionsBefore, 72 TransitionsAfterwards, 18600 CoEnabledTransitionPairs, 8 FixpointIterations, 183 TrivialSequentialCompositions, 157 ConcurrentSequentialCompositions, 44 TrivialYvCompositions, 42 ConcurrentYvCompositions, 26 ChoiceCompositions, 452 TotalNumberOfCompositions, 23800 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18741, independent: 18608, independent conditional: 0, independent unconditional: 18608, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10385, independent: 10350, independent conditional: 0, independent unconditional: 10350, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18741, independent: 8258, independent conditional: 0, independent unconditional: 8258, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 10385, unknown conditional: 0, unknown unconditional: 10385] , Statistics on independence cache: Total cache size (in pairs): 241, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3994 for 667236ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 488 locations, 60 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: 832.5s, OverallIterations: 24, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 116.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 30.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1161 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1161 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 194 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5800 IncrementalHoareTripleChecker+Invalid, 5994 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 194 mSolverCounterUnsat, 8 mSDtfsCounter, 5800 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2483occurred in iteration=21, InterpolantAutomatonStates: 137, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 304 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2012 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 37 InterpolantComputations, 18 PerfectInterpolantSequences, 147/287 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown