/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/chl-chromosome-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:37:11,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:37:11,603 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 12:37:11,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:37:11,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:37:11,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:37:11,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:37:11,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:37:11,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:37:11,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:37:11,641 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:37:11,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:37:11,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:37:11,642 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:37:11,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:37:11,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:37:11,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:37:11,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:37:11,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:37:11,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:37:11,643 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:37:11,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:37:11,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:37:11,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:37:11,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:37:11,644 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:37:11,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:37:11,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:37:11,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:37:11,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:37:11,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:37:11,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:37:11,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:37:11,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:37:11,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:37:11,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:37:11,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:37:11,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:37:11,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:37:11,945 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:37:11,946 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:37:11,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-27 12:37:13,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:37:13,202 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:37:13,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-27 12:37:13,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2f50d04/002d0b36d982454abe577920ba1b5cf6/FLAG12777ed4a [2023-08-27 12:37:13,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2f50d04/002d0b36d982454abe577920ba1b5cf6 [2023-08-27 12:37:13,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:37:13,226 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:37:13,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:37:13,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:37:13,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:37:13,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b66807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13, skipping insertion in model container [2023-08-27 12:37:13,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,251 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:37:13,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:37:13,394 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:37:13,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:37:13,435 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:37:13,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13 WrapperNode [2023-08-27 12:37:13,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:37:13,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:37:13,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:37:13,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:37:13,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,482 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 238 [2023-08-27 12:37:13,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:37:13,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:37:13,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:37:13,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:37:13,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:37:13,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:37:13,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:37:13,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:37:13,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (1/1) ... [2023-08-27 12:37:13,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:37:13,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:37:13,582 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 12:37:13,614 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 12:37:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:37:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:37:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:37:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 12:37:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 12:37:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 12:37:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 12:37:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 12:37:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:37:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 12:37:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:37:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:37:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:37:13,635 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 12:37:13,709 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:37:13,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:37:14,083 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:37:14,090 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:37:14,090 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-27 12:37:14,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:37:14 BoogieIcfgContainer [2023-08-27 12:37:14,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:37:14,093 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:37:14,093 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:37:14,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:37:14,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:37:13" (1/3) ... [2023-08-27 12:37:14,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ea9fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:37:14, skipping insertion in model container [2023-08-27 12:37:14,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:37:13" (2/3) ... [2023-08-27 12:37:14,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ea9fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:37:14, skipping insertion in model container [2023-08-27 12:37:14,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:37:14" (3/3) ... [2023-08-27 12:37:14,101 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-08-27 12:37:14,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:37:14,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-08-27 12:37:14,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:37:14,245 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 12:37:14,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 294 transitions, 604 flow [2023-08-27 12:37:14,383 INFO L124 PetriNetUnfolderBase]: 25/292 cut-off events. [2023-08-27 12:37:14,384 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 12:37:14,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 292 events. 25/292 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 507 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2023-08-27 12:37:14,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 294 transitions, 604 flow [2023-08-27 12:37:14,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 283 transitions, 578 flow [2023-08-27 12:37:14,406 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:37:14,415 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 283 transitions, 578 flow [2023-08-27 12:37:14,418 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 283 transitions, 578 flow [2023-08-27 12:37:14,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 283 transitions, 578 flow [2023-08-27 12:37:14,464 INFO L124 PetriNetUnfolderBase]: 25/283 cut-off events. [2023-08-27 12:37:14,464 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 12:37:14,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 283 events. 25/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 505 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2023-08-27 12:37:14,472 INFO L119 LiptonReduction]: Number of co-enabled transitions 12212 [2023-08-27 12:37:26,658 INFO L134 LiptonReduction]: Checked pairs total: 13295 [2023-08-27 12:37:26,658 INFO L136 LiptonReduction]: Total number of compositions: 373 [2023-08-27 12:37:26,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:37:26,672 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;@4e29c786, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:37:26,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-27 12:37:26,677 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:37:26,677 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-27 12:37:26,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:37:26,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:26,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 12:37:26,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:26,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:26,681 INFO L85 PathProgramCache]: Analyzing trace with hash 39447, now seen corresponding path program 1 times [2023-08-27 12:37:26,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:26,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324329051] [2023-08-27 12:37:26,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:26,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:26,876 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 12:37:26,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:26,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324329051] [2023-08-27 12:37:26,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324329051] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:37:26,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:37:26,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:37:26,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090667075] [2023-08-27 12:37:26,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:37:26,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:37:26,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:26,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:37:26,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:37:26,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-27 12:37:26,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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 12:37:26,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:26,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-27 12:37:26,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:27,051 INFO L124 PetriNetUnfolderBase]: 279/482 cut-off events. [2023-08-27 12:37:27,051 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-08-27 12:37:27,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 482 events. 279/482 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2007 event pairs, 237 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 900. Up to 477 conditions per place. [2023-08-27 12:37:27,054 INFO L140 encePairwiseOnDemand]: 658/667 looper letters, 31 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2023-08-27 12:37:27,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 144 flow [2023-08-27 12:37:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:37:27,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:37:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 808 transitions. [2023-08-27 12:37:27,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40379810094952523 [2023-08-27 12:37:27,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 808 transitions. [2023-08-27 12:37:27,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 808 transitions. [2023-08-27 12:37:27,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:27,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 808 transitions. [2023-08-27 12:37:27,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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 12:37:27,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:27,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:27,090 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 92 flow. Second operand 3 states and 808 transitions. [2023-08-27 12:37:27,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 144 flow [2023-08-27 12:37:27,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 12:37:27,095 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 74 flow [2023-08-27 12:37:27,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2023-08-27 12:37:27,100 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2023-08-27 12:37:27,101 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 74 flow [2023-08-27 12:37:27,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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 12:37:27,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:27,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 12:37:27,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:37:27,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:27,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash 39475, now seen corresponding path program 1 times [2023-08-27 12:37:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:27,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660777864] [2023-08-27 12:37:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:27,175 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 12:37:27,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:27,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660777864] [2023-08-27 12:37:27,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660777864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:37:27,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:37:27,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:37:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373109410] [2023-08-27 12:37:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:37:27,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:37:27,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:27,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:37:27,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:37:27,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-27 12:37:27,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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 12:37:27,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:27,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-27 12:37:27,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:27,279 INFO L124 PetriNetUnfolderBase]: 281/486 cut-off events. [2023-08-27 12:37:27,279 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 12:37:27,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 486 events. 281/486 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2021 event pairs, 237 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 961. Up to 484 conditions per place. [2023-08-27 12:37:27,282 INFO L140 encePairwiseOnDemand]: 660/667 looper letters, 32 selfloop transitions, 5 changer transitions 0/37 dead transitions. [2023-08-27 12:37:27,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 158 flow [2023-08-27 12:37:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:37:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:37:27,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2023-08-27 12:37:27,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4032983508245877 [2023-08-27 12:37:27,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2023-08-27 12:37:27,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2023-08-27 12:37:27,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:27,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2023-08-27 12:37:27,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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 12:37:27,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:27,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:27,290 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 74 flow. Second operand 3 states and 807 transitions. [2023-08-27 12:37:27,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 158 flow [2023-08-27 12:37:27,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 12:37:27,291 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 110 flow [2023-08-27 12:37:27,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-08-27 12:37:27,292 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-08-27 12:37:27,292 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 110 flow [2023-08-27 12:37:27,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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 12:37:27,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:27,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:37:27,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 12:37:27,294 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:27,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:27,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1226496, now seen corresponding path program 1 times [2023-08-27 12:37:27,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:27,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022551752] [2023-08-27 12:37:27,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:27,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:27,373 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 12:37:27,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:27,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022551752] [2023-08-27 12:37:27,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022551752] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 12:37:27,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699599239] [2023-08-27 12:37:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:27,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 12:37:27,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:37:27,391 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 12:37:27,392 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 12:37:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:27,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 12:37:27,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 12:37:27,477 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 12:37:27,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 12:37:27,499 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 12:37:27,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699599239] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 12:37:27,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 12:37:27,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-08-27 12:37:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557077386] [2023-08-27 12:37:27,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 12:37:27,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 12:37:27,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:27,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 12:37:27,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-27 12:37:27,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-27 12:37:27,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 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 12:37:27,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:27,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-27 12:37:27,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:27,648 INFO L124 PetriNetUnfolderBase]: 287/498 cut-off events. [2023-08-27 12:37:27,648 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 12:37:27,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 498 events. 287/498 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2054 event pairs, 237 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 961. Up to 487 conditions per place. [2023-08-27 12:37:27,650 INFO L140 encePairwiseOnDemand]: 660/667 looper letters, 32 selfloop transitions, 17 changer transitions 0/49 dead transitions. [2023-08-27 12:37:27,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 262 flow [2023-08-27 12:37:27,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:37:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:37:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1591 transitions. [2023-08-27 12:37:27,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3975512243878061 [2023-08-27 12:37:27,653 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1591 transitions. [2023-08-27 12:37:27,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1591 transitions. [2023-08-27 12:37:27,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:27,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1591 transitions. [2023-08-27 12:37:27,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 265.1666666666667) internal successors, (1591), 6 states have internal predecessors, (1591), 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 12:37:27,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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 12:37:27,662 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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 12:37:27,662 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 110 flow. Second operand 6 states and 1591 transitions. [2023-08-27 12:37:27,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 262 flow [2023-08-27 12:37:27,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 12:37:27,663 INFO L231 Difference]: Finished difference. Result has 42 places, 49 transitions, 218 flow [2023-08-27 12:37:27,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=42, PETRI_TRANSITIONS=49} [2023-08-27 12:37:27,664 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-08-27 12:37:27,664 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 49 transitions, 218 flow [2023-08-27 12:37:27,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 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 12:37:27,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:27,665 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-27 12:37:27,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-27 12:37:27,874 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 12:37:27,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:27,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:27,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2113411725, now seen corresponding path program 2 times [2023-08-27 12:37:27,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:27,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298110355] [2023-08-27 12:37:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:27,938 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 12:37:27,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:27,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298110355] [2023-08-27 12:37:27,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298110355] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 12:37:27,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938246349] [2023-08-27 12:37:27,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 12:37:27,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 12:37:27,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:37:28,001 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 12:37:28,002 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 12:37:28,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 12:37:28,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 12:37:28,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 12:37:28,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 12:37:28,112 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 12:37:28,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 12:37:28,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938246349] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:37:28,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 12:37:28,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-27 12:37:28,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052603739] [2023-08-27 12:37:28,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:37:28,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:37:28,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:37:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 12:37:28,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 667 [2023-08-27 12:37:28,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 49 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 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 12:37:28,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:28,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 667 [2023-08-27 12:37:28,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:28,185 INFO L124 PetriNetUnfolderBase]: 287/496 cut-off events. [2023-08-27 12:37:28,185 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-27 12:37:28,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1063 conditions, 496 events. 287/496 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2047 event pairs, 237 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 1010. Up to 496 conditions per place. [2023-08-27 12:37:28,187 INFO L140 encePairwiseOnDemand]: 664/667 looper letters, 46 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2023-08-27 12:37:28,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 292 flow [2023-08-27 12:37:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:37:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:37:28,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2023-08-27 12:37:28,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4032983508245877 [2023-08-27 12:37:28,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2023-08-27 12:37:28,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2023-08-27 12:37:28,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:28,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2023-08-27 12:37:28,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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 12:37:28,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:28,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:28,195 INFO L175 Difference]: Start difference. First operand has 42 places, 49 transitions, 218 flow. Second operand 3 states and 807 transitions. [2023-08-27 12:37:28,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 292 flow [2023-08-27 12:37:28,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 47 transitions, 234 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-27 12:37:28,206 INFO L231 Difference]: Finished difference. Result has 37 places, 47 transitions, 142 flow [2023-08-27 12:37:28,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=37, PETRI_TRANSITIONS=47} [2023-08-27 12:37:28,207 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2023-08-27 12:37:28,207 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 47 transitions, 142 flow [2023-08-27 12:37:28,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 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 12:37:28,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:28,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:37:28,215 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 12:37:28,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-27 12:37:28,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:28,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:28,413 INFO L85 PathProgramCache]: Analyzing trace with hash -511383935, now seen corresponding path program 1 times [2023-08-27 12:37:28,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:28,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140096043] [2023-08-27 12:37:28,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:28,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:28,448 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 12:37:28,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140096043] [2023-08-27 12:37:28,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140096043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:37:28,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:37:28,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 12:37:28,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675132282] [2023-08-27 12:37:28,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:37:28,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:37:28,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:37:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:37:28,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 667 [2023-08-27 12:37:28,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 47 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 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 12:37:28,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:28,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 667 [2023-08-27 12:37:28,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:28,562 INFO L124 PetriNetUnfolderBase]: 485/838 cut-off events. [2023-08-27 12:37:28,562 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 12:37:28,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 838 events. 485/838 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4198 event pairs, 237 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 1712. Up to 497 conditions per place. [2023-08-27 12:37:28,565 INFO L140 encePairwiseOnDemand]: 663/667 looper letters, 67 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2023-08-27 12:37:28,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 69 transitions, 327 flow [2023-08-27 12:37:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:37:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:37:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2023-08-27 12:37:28,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42478760619690153 [2023-08-27 12:37:28,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 850 transitions. [2023-08-27 12:37:28,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 850 transitions. [2023-08-27 12:37:28,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:28,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 850 transitions. [2023-08-27 12:37:28,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 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 12:37:28,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:28,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:28,573 INFO L175 Difference]: Start difference. First operand has 37 places, 47 transitions, 142 flow. Second operand 3 states and 850 transitions. [2023-08-27 12:37:28,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 69 transitions, 327 flow [2023-08-27 12:37:28,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 69 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:37:28,574 INFO L231 Difference]: Finished difference. Result has 39 places, 48 transitions, 155 flow [2023-08-27 12:37:28,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=39, PETRI_TRANSITIONS=48} [2023-08-27 12:37:28,575 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2023-08-27 12:37:28,575 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 48 transitions, 155 flow [2023-08-27 12:37:28,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 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 12:37:28,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:28,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:37:28,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 12:37:28,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:28,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:28,576 INFO L85 PathProgramCache]: Analyzing trace with hash -511384011, now seen corresponding path program 1 times [2023-08-27 12:37:28,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:28,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564481733] [2023-08-27 12:37:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:28,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:28,602 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 12:37:28,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:28,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564481733] [2023-08-27 12:37:28,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564481733] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:37:28,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:37:28,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 12:37:28,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291644839] [2023-08-27 12:37:28,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:37:28,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:37:28,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:37:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:37:28,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-27 12:37:28,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 48 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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 12:37:28,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:28,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-27 12:37:28,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:28,727 INFO L124 PetriNetUnfolderBase]: 483/836 cut-off events. [2023-08-27 12:37:28,727 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-08-27 12:37:28,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1823 conditions, 836 events. 483/836 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3978 event pairs, 419 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 1814. Up to 832 conditions per place. [2023-08-27 12:37:28,730 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 39 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2023-08-27 12:37:28,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 239 flow [2023-08-27 12:37:28,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:37:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:37:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 779 transitions. [2023-08-27 12:37:28,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3893053473263368 [2023-08-27 12:37:28,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 779 transitions. [2023-08-27 12:37:28,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 779 transitions. [2023-08-27 12:37:28,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:28,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 779 transitions. [2023-08-27 12:37:28,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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 12:37:28,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:28,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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 12:37:28,736 INFO L175 Difference]: Start difference. First operand has 39 places, 48 transitions, 155 flow. Second operand 3 states and 779 transitions. [2023-08-27 12:37:28,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 239 flow [2023-08-27 12:37:28,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:37:28,737 INFO L231 Difference]: Finished difference. Result has 40 places, 46 transitions, 159 flow [2023-08-27 12:37:28,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=40, PETRI_TRANSITIONS=46} [2023-08-27 12:37:28,738 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-27 12:37:28,738 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 46 transitions, 159 flow [2023-08-27 12:37:28,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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 12:37:28,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:28,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:37:28,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 12:37:28,738 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:28,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:28,739 INFO L85 PathProgramCache]: Analyzing trace with hash 973669750, now seen corresponding path program 1 times [2023-08-27 12:37:28,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:28,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940159524] [2023-08-27 12:37:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:28,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 12:37:28,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:28,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940159524] [2023-08-27 12:37:28,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940159524] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 12:37:28,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144147464] [2023-08-27 12:37:28,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:28,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 12:37:28,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:37:28,774 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 12:37:28,812 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 12:37:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:28,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-27 12:37:28,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 12:37:28,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 12:37:28,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 12:37:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 12:37:28,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144147464] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 12:37:28,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 12:37:28,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-27 12:37:28,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28172773] [2023-08-27 12:37:28,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 12:37:28,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 12:37:28,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:28,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 12:37:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-27 12:37:28,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-27 12:37:28,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 46 transitions, 159 flow. Second operand has 8 states, 8 states have (on average 249.875) internal successors, (1999), 8 states have internal predecessors, (1999), 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 12:37:28,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:28,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-27 12:37:28,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:29,044 INFO L124 PetriNetUnfolderBase]: 477/830 cut-off events. [2023-08-27 12:37:29,044 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-27 12:37:29,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 830 events. 477/830 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3959 event pairs, 419 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 1781. Up to 823 conditions per place. [2023-08-27 12:37:29,047 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 30 selfloop transitions, 10 changer transitions 0/40 dead transitions. [2023-08-27 12:37:29,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 209 flow [2023-08-27 12:37:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:37:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:37:29,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1533 transitions. [2023-08-27 12:37:29,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830584707646177 [2023-08-27 12:37:29,050 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1533 transitions. [2023-08-27 12:37:29,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1533 transitions. [2023-08-27 12:37:29,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:29,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1533 transitions. [2023-08-27 12:37:29,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 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 12:37:29,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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 12:37:29,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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 12:37:29,057 INFO L175 Difference]: Start difference. First operand has 40 places, 46 transitions, 159 flow. Second operand 6 states and 1533 transitions. [2023-08-27 12:37:29,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 209 flow [2023-08-27 12:37:29,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 12:37:29,058 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 141 flow [2023-08-27 12:37:29,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2023-08-27 12:37:29,058 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2023-08-27 12:37:29,058 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 141 flow [2023-08-27 12:37:29,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 249.875) internal successors, (1999), 8 states have internal predecessors, (1999), 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 12:37:29,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:29,059 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:37:29,064 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 12:37:29,264 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 12:37:29,264 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:29,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:29,265 INFO L85 PathProgramCache]: Analyzing trace with hash 265990133, now seen corresponding path program 2 times [2023-08-27 12:37:29,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:29,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63601932] [2023-08-27 12:37:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:29,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 12:37:29,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63601932] [2023-08-27 12:37:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63601932] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 12:37:29,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414016768] [2023-08-27 12:37:29,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 12:37:29,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 12:37:29,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:37:29,398 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 12:37:29,415 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 12:37:29,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 12:37:29,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 12:37:29,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-27 12:37:29,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 12:37:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 12:37:29,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 12:37:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 12:37:29,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414016768] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 12:37:29,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 12:37:29,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-27 12:37:29,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737268452] [2023-08-27 12:37:29,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 12:37:29,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-27 12:37:29,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-27 12:37:29,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-08-27 12:37:29,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-27 12:37:29,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 141 flow. Second operand has 12 states, 12 states have (on average 249.5) internal successors, (2994), 12 states have internal predecessors, (2994), 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 12:37:29,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:29,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-27 12:37:29,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:29,771 INFO L124 PetriNetUnfolderBase]: 477/832 cut-off events. [2023-08-27 12:37:29,771 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-27 12:37:29,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1803 conditions, 832 events. 477/832 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3958 event pairs, 419 based on Foata normal form. 1/424 useless extension candidates. Maximal degree in co-relation 1793. Up to 823 conditions per place. [2023-08-27 12:37:29,775 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 30 selfloop transitions, 12 changer transitions 0/42 dead transitions. [2023-08-27 12:37:29,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 233 flow [2023-08-27 12:37:29,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 12:37:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 12:37:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1779 transitions. [2023-08-27 12:37:29,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.381023773827372 [2023-08-27 12:37:29,780 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1779 transitions. [2023-08-27 12:37:29,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1779 transitions. [2023-08-27 12:37:29,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:29,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1779 transitions. [2023-08-27 12:37:29,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 254.14285714285714) internal successors, (1779), 7 states have internal predecessors, (1779), 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 12:37:29,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 667.0) internal successors, (5336), 8 states have internal predecessors, (5336), 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 12:37:29,789 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 667.0) internal successors, (5336), 8 states have internal predecessors, (5336), 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 12:37:29,789 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 141 flow. Second operand 7 states and 1779 transitions. [2023-08-27 12:37:29,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 233 flow [2023-08-27 12:37:29,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 213 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-27 12:37:29,790 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 163 flow [2023-08-27 12:37:29,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=163, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2023-08-27 12:37:29,791 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2023-08-27 12:37:29,791 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 163 flow [2023-08-27 12:37:29,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 249.5) internal successors, (2994), 12 states have internal predecessors, (2994), 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 12:37:29,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:29,792 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:37:29,811 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 12:37:30,011 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 12:37:30,011 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:30,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1914235210, now seen corresponding path program 3 times [2023-08-27 12:37:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389915087] [2023-08-27 12:37:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-27 12:37:30,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:30,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389915087] [2023-08-27 12:37:30,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389915087] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 12:37:30,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160955572] [2023-08-27 12:37:30,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-27 12:37:30,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 12:37:30,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:37:30,598 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 12:37:30,612 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 12:37:30,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-27 12:37:30,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 12:37:30,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 40 conjunts are in the unsatisfiable core [2023-08-27 12:37:30,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 12:37:30,767 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 12:37:30,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 12:37:30,797 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 21 treesize of output 20 [2023-08-27 12:37:30,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 12:37:30,826 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 21 treesize of output 20 [2023-08-27 12:37:30,862 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-27 12:37:30,862 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 21 treesize of output 24 [2023-08-27 12:37:30,911 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-27 12:37:30,912 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 25 treesize of output 28 [2023-08-27 12:37:30,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 12:37:30,955 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 14 treesize of output 16 [2023-08-27 12:37:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-27 12:37:30,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 12:37:42,831 INFO L322 Elim1Store]: treesize reduction 212, result has 30.5 percent of original size [2023-08-27 12:37:42,831 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 5 case distinctions, treesize of input 50 treesize of output 103 [2023-08-27 12:37:42,901 INFO L322 Elim1Store]: treesize reduction 24, result has 70.4 percent of original size [2023-08-27 12:37:42,902 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 122 [2023-08-27 12:37:42,992 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 5 treesize of output 3 [2023-08-27 12:37:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-27 12:37:43,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160955572] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 12:37:43,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 12:37:43,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-27 12:37:43,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023988254] [2023-08-27 12:37:43,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 12:37:43,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-27 12:37:43,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:37:43,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-27 12:37:43,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=498, Unknown=11, NotChecked=0, Total=650 [2023-08-27 12:37:43,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 667 [2023-08-27 12:37:43,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 163 flow. Second operand has 26 states, 26 states have (on average 222.26923076923077) internal successors, (5779), 26 states have internal predecessors, (5779), 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 12:37:43,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:37:43,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 667 [2023-08-27 12:37:43,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:37:43,586 INFO L124 PetriNetUnfolderBase]: 540/1030 cut-off events. [2023-08-27 12:37:43,586 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-08-27 12:37:43,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2215 conditions, 1030 events. 540/1030 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5816 event pairs, 259 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 2204. Up to 662 conditions per place. [2023-08-27 12:37:43,590 INFO L140 encePairwiseOnDemand]: 653/667 looper letters, 48 selfloop transitions, 22 changer transitions 0/70 dead transitions. [2023-08-27 12:37:43,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 70 transitions, 370 flow [2023-08-27 12:37:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-27 12:37:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-27 12:37:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2274 transitions. [2023-08-27 12:37:43,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3409295352323838 [2023-08-27 12:37:43,595 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2274 transitions. [2023-08-27 12:37:43,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2274 transitions. [2023-08-27 12:37:43,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:37:43,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2274 transitions. [2023-08-27 12:37:43,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 227.4) internal successors, (2274), 10 states have internal predecessors, (2274), 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 12:37:43,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 667.0) internal successors, (7337), 11 states have internal predecessors, (7337), 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 12:37:43,605 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 667.0) internal successors, (7337), 11 states have internal predecessors, (7337), 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 12:37:43,606 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 163 flow. Second operand 10 states and 2274 transitions. [2023-08-27 12:37:43,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 70 transitions, 370 flow [2023-08-27 12:37:43,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 350 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-27 12:37:43,608 INFO L231 Difference]: Finished difference. Result has 52 places, 54 transitions, 243 flow [2023-08-27 12:37:43,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=243, PETRI_PLACES=52, PETRI_TRANSITIONS=54} [2023-08-27 12:37:43,609 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2023-08-27 12:37:43,609 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 54 transitions, 243 flow [2023-08-27 12:37:43,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 222.26923076923077) internal successors, (5779), 26 states have internal predecessors, (5779), 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 12:37:43,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:37:43,611 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:37:43,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-27 12:37:43,832 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 12:37:43,832 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-27 12:37:43,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:37:43,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1914235135, now seen corresponding path program 1 times [2023-08-27 12:37:43,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:37:43,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536543856] [2023-08-27 12:37:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:43,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:37:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 12:37:44,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:37:44,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536543856] [2023-08-27 12:37:44,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536543856] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 12:37:44,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426710497] [2023-08-27 12:37:44,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:37:44,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 12:37:44,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:37:44,543 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 12:37:44,545 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 12:37:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:37:44,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 64 conjunts are in the unsatisfiable core [2023-08-27 12:37:44,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 12:37:44,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 12:37:44,667 INFO L322 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2023-08-27 12:37:44,667 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 12 treesize of output 24 [2023-08-27 12:37:44,694 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 12:37:44,723 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 19 treesize of output 18 [2023-08-27 12:37:44,753 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 19 treesize of output 18 [2023-08-27 12:37:44,785 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 19 treesize of output 18 [2023-08-27 12:37:44,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 12:37:44,819 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 21 treesize of output 20 [2023-08-27 12:37:44,854 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 12:37:44,856 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 12:37:44,889 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 14 treesize of output 16 [2023-08-27 12:37:44,923 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 14 treesize of output 16 [2023-08-27 12:37:44,955 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 14 treesize of output 16 [2023-08-27 12:37:44,988 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 14 treesize of output 16 [2023-08-27 12:37:44,999 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 14 treesize of output 16 [2023-08-27 12:37:45,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 12:37:45,029 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 14 treesize of output 16 [2023-08-27 12:37:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 12:37:45,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 12:37:45,315 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_366 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse1 (select (select .cse0 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< (select (select .cse0 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse1 2147483648)) (< 9223372039002259455 .cse1) (<= .cse1 0))))) (forall ((v_ArrVal_366 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse3 (select (select .cse2 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< (select (select .cse2 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse3 2147483648)) (< .cse3 0) (< 0 .cse3)))))) is different from false [2023-08-27 12:37:45,338 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_366 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< .cse0 0) (< 0 .cse0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)))))) (forall ((v_ArrVal_366 (Array Int Int)) (v_ArrVal_365 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< 9223372039002259455 .cse2) (<= .cse2 0) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648))))))) is different from false [2023-08-27 12:38:19,129 INFO L322 Elim1Store]: treesize reduction 146, result has 55.1 percent of original size [2023-08-27 12:38:19,129 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 471 treesize of output 315 [2023-08-27 12:38:19,176 INFO L322 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2023-08-27 12:38:19,177 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1658 treesize of output 1588 [2023-08-27 12:38:19,231 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:38:19,231 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 467 treesize of output 456 [2023-08-27 12:38:19,268 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:38:19,269 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 447 treesize of output 416 [2023-08-27 12:38:19,307 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:38:19,308 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1176 treesize of output 1154 [2023-08-27 12:38:19,361 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:38:19,362 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 747 treesize of output 736 [2023-08-27 12:38:19,403 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:38:19,404 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 727 treesize of output 696 [2023-08-27 12:38:57,296 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 137 treesize of output 127 [2023-08-27 12:38:59,743 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 1124 treesize of output 1080 [2023-08-27 12:39:10,541 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 454 treesize of output 428 [2023-08-27 12:39:14,960 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:39:14,962 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 7389 treesize of output 6869 [2023-08-27 12:39:46,544 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:39:46,544 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 1961 treesize of output 1935 [2023-08-27 12:40:09,360 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:40:09,362 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5392 treesize of output 5235 [2023-08-27 12:43:22,561 INFO L322 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2023-08-27 12:43:22,561 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 247 treesize of output 225 [2023-08-27 12:43:23,413 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:43:23,420 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 18632 treesize of output 18327 [2023-08-27 12:43:24,065 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:43:24,072 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 18298 treesize of output 18229 [2023-08-27 12:51:01,534 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:51:01,535 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 519 treesize of output 477 [2023-08-27 12:51:08,912 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:51:08,919 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 19895 treesize of output 19530 [2023-08-27 12:51:09,627 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 12:51:09,633 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19509 treesize of output 19400 Received shutdown request... [2023-08-27 12:51:20,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-08-27 12:51:20,532 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 12:51:20,540 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 12:51:20,550 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 12:51:20,727 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 12:51:20,727 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. [2023-08-27 12:51:20,730 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-08-27 12:51:20,730 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-08-27 12:51:20,730 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-08-27 12:51:20,731 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-08-27 12:51:20,731 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-08-27 12:51:20,731 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-08-27 12:51:20,733 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-08-27 12:51:20,733 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-08-27 12:51:20,734 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-08-27 12:51:20,734 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-08-27 12:51:20,734 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-08-27 12:51:20,734 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-08-27 12:51:20,734 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-08-27 12:51:20,734 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-08-27 12:51:20,734 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-08-27 12:51:20,735 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-08-27 12:51:20,735 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-08-27 12:51:20,735 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 39 remaining) [2023-08-27 12:51:20,735 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 39 remaining) [2023-08-27 12:51:20,735 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 39 remaining) [2023-08-27 12:51:20,737 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (17 of 39 remaining) [2023-08-27 12:51:20,737 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 39 remaining) [2023-08-27 12:51:20,737 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 39 remaining) [2023-08-27 12:51:20,737 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-08-27 12:51:20,737 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-08-27 12:51:20,738 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-08-27 12:51:20,739 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-08-27 12:51:20,739 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-08-27 12:51:20,739 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-08-27 12:51:20,739 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-08-27 12:51:20,744 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:51:20,744 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:51:20,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:51:20 BasicIcfg [2023-08-27 12:51:20,746 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:51:20,747 INFO L158 Benchmark]: Toolchain (without parser) took 847520.37ms. Allocated memory was 339.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 316.1MB in the beginning and 1.1GB in the end (delta: -775.7MB). Peak memory consumption was 930.5MB. Max. memory is 16.0GB. [2023-08-27 12:51:20,747 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 339.7MB. Free memory is still 316.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:51:20,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.91ms. Allocated memory is still 339.7MB. Free memory was 315.6MB in the beginning and 304.4MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 12:51:20,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.53ms. Allocated memory is still 339.7MB. Free memory was 303.9MB in the beginning and 301.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:51:20,748 INFO L158 Benchmark]: Boogie Preprocessor took 36.72ms. Allocated memory is still 339.7MB. Free memory was 301.8MB in the beginning and 299.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:51:20,748 INFO L158 Benchmark]: RCFGBuilder took 572.06ms. Allocated memory is still 339.7MB. Free memory was 299.7MB in the beginning and 276.1MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 12:51:20,748 INFO L158 Benchmark]: TraceAbstraction took 846653.02ms. Allocated memory was 339.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 275.6MB in the beginning and 1.1GB in the end (delta: -816.3MB). Peak memory consumption was 890.6MB. Max. memory is 16.0GB. [2023-08-27 12:51:20,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 339.7MB. Free memory is still 316.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 206.91ms. Allocated memory is still 339.7MB. Free memory was 315.6MB in the beginning and 304.4MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.53ms. Allocated memory is still 339.7MB. Free memory was 303.9MB in the beginning and 301.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.72ms. Allocated memory is still 339.7MB. Free memory was 301.8MB in the beginning and 299.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 572.06ms. Allocated memory is still 339.7MB. Free memory was 299.7MB in the beginning and 276.1MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 846653.02ms. Allocated memory was 339.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 275.6MB in the beginning and 1.1GB in the end (delta: -816.3MB). Peak memory consumption was 890.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.2s, 265 PlacesBefore, 43 PlacesAfterwards, 283 TransitionsBefore, 40 TransitionsAfterwards, 12212 CoEnabledTransitionPairs, 8 FixpointIterations, 119 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 23 ConcurrentYvCompositions, 21 ChoiceCompositions, 373 TotalNumberOfCompositions, 13295 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12388, independent: 12311, independent conditional: 0, independent unconditional: 12311, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6805, independent: 6787, independent conditional: 0, independent unconditional: 6787, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12388, independent: 5524, independent conditional: 0, independent unconditional: 5524, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 6805, unknown conditional: 0, unknown unconditional: 6805] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 86]: 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 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - TimeoutResultAtElement [Line: 85]: 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 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-17-6-2-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 402 locations, 39 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: 846.5s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1172 IncrementalHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 0 mSDtfsCounter, 1172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=243occurred in iteration=9, InterpolantAutomatonStates: 44, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 118 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 144 ConstructedInterpolants, 5 QuantifiedInterpolants, 911 SizeOfPredicates, 13 NumberOfNonLiveVariables, 894 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 89/179 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