/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:13:29,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:13:29,737 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-NoLbe.epf [2023-11-30 08:13:29,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:13:29,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:13:29,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:13:29,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:13:29,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:13:29,762 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:13:29,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:13:29,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:13:29,765 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:13:29,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:13:29,766 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:13:29,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:13:29,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:13:29,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:13:29,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:13:29,767 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:13:29,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:13:29,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:13:29,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:13:29,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:13:29,768 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:13:29,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:13:29,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:13:29,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:13:29,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:13:29,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:13:29,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:13:29,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:13:29,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:13:29,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:13:29,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:13:29,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:13:29,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:13:29,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:13:29,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:13:29,950 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:13:29,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-11-30 08:13:30,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:13:31,044 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:13:31,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-11-30 08:13:31,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd6154e4/333883c4d61046dfb0c73ee4ee8cef57/FLAGd5895a42f [2023-11-30 08:13:31,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd6154e4/333883c4d61046dfb0c73ee4ee8cef57 [2023-11-30 08:13:31,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:13:31,076 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:13:31,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:13:31,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:13:31,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:13:31,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70536c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31, skipping insertion in model container [2023-11-30 08:13:31,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,126 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:13:31,435 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,435 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,436 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,436 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:13:31,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:13:31,496 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,497 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,497 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,497 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:31,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:13:31,540 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:13:31,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31 WrapperNode [2023-11-30 08:13:31,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:13:31,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:13:31,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:13:31,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:13:31,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,588 INFO L138 Inliner]: procedures = 278, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 218 [2023-11-30 08:13:31,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:13:31,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:13:31,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:13:31,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:13:31,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:13:31,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:13:31,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:13:31,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:13:31,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (1/1) ... [2023-11-30 08:13:31,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:13:31,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:31,635 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) [2023-11-30 08:13:31,640 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 [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 08:13:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 08:13:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:13:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 08:13:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 08:13:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 08:13:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:13:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:13:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:13:31,657 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 08:13:31,768 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:13:31,770 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:13:32,096 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:13:32,148 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:13:32,148 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-30 08:13:32,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:13:32 BoogieIcfgContainer [2023-11-30 08:13:32,149 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:13:32,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:13:32,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:13:32,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:13:32,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:13:31" (1/3) ... [2023-11-30 08:13:32,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ec13f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:13:32, skipping insertion in model container [2023-11-30 08:13:32,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:31" (2/3) ... [2023-11-30 08:13:32,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ec13f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:13:32, skipping insertion in model container [2023-11-30 08:13:32,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:13:32" (3/3) ... [2023-11-30 08:13:32,154 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2023-11-30 08:13:32,165 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:13:32,166 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-30 08:13:32,166 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:13:32,215 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 08:13:32,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 240 transitions, 487 flow [2023-11-30 08:13:32,300 INFO L124 PetriNetUnfolderBase]: 27/259 cut-off events. [2023-11-30 08:13:32,301 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 08:13:32,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 259 events. 27/259 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 778 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2023-11-30 08:13:32,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 240 transitions, 487 flow [2023-11-30 08:13:32,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 237 transitions, 481 flow [2023-11-30 08:13:32,317 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:13:32,321 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9511a6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:13:32,321 INFO L363 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-30 08:13:32,328 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:13:32,329 INFO L124 PetriNetUnfolderBase]: 4/58 cut-off events. [2023-11-30 08:13:32,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 08:13:32,329 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:32,329 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:32,330 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:32,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1710773368, now seen corresponding path program 1 times [2023-11-30 08:13:32,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:32,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748252445] [2023-11-30 08:13:32,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:32,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:32,440 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:32,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139148234] [2023-11-30 08:13:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:32,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:32,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:32,445 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) [2023-11-30 08:13:32,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 08:13:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:32,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:32,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:32,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:32,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:32,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748252445] [2023-11-30 08:13:32,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:32,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139148234] [2023-11-30 08:13:32,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139148234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:32,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:32,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 08:13:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870417011] [2023-11-30 08:13:32,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:32,588 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:13:32,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:32,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:13:32,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:13:32,612 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 240 [2023-11-30 08:13:32,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 237 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2023-11-30 08:13:32,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:32,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 240 [2023-11-30 08:13:32,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:32,711 INFO L124 PetriNetUnfolderBase]: 17/380 cut-off events. [2023-11-30 08:13:32,711 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-30 08:13:32,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 380 events. 17/380 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1463 event pairs, 8 based on Foata normal form. 47/386 useless extension candidates. Maximal degree in co-relation 232. Up to 45 conditions per place. [2023-11-30 08:13:32,717 INFO L140 encePairwiseOnDemand]: 216/240 looper letters, 33 selfloop transitions, 2 changer transitions 0/224 dead transitions. [2023-11-30 08:13:32,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 224 transitions, 525 flow [2023-11-30 08:13:32,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:13:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:13:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 641 transitions. [2023-11-30 08:13:32,730 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8902777777777777 [2023-11-30 08:13:32,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 641 transitions. [2023-11-30 08:13:32,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 641 transitions. [2023-11-30 08:13:32,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:32,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 641 transitions. [2023-11-30 08:13:32,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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) [2023-11-30 08:13:32,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-11-30 08:13:32,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-11-30 08:13:32,745 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, -1 predicate places. [2023-11-30 08:13:32,745 INFO L500 AbstractCegarLoop]: Abstraction has has 215 places, 224 transitions, 525 flow [2023-11-30 08:13:32,745 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2023-11-30 08:13:32,745 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:32,746 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:32,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-30 08:13:32,955 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-30 08:13:32,955 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:32,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:32,956 INFO L85 PathProgramCache]: Analyzing trace with hash -919035348, now seen corresponding path program 1 times [2023-11-30 08:13:32,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:32,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244540870] [2023-11-30 08:13:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:32,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:33,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:33,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244540870] [2023-11-30 08:13:33,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244540870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:33,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:33,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:33,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417492390] [2023-11-30 08:13:33,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:33,056 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:13:33,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:33,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:13:33,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:13:33,058 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 240 [2023-11-30 08:13:33,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 224 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2023-11-30 08:13:33,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:33,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 240 [2023-11-30 08:13:33,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:33,174 INFO L124 PetriNetUnfolderBase]: 17/464 cut-off events. [2023-11-30 08:13:33,175 INFO L125 PetriNetUnfolderBase]: For 29/32 co-relation queries the response was YES. [2023-11-30 08:13:33,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 464 events. 17/464 cut-off events. For 29/32 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1608 event pairs, 8 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 317. Up to 51 conditions per place. [2023-11-30 08:13:33,177 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 33 selfloop transitions, 2 changer transitions 0/233 dead transitions. [2023-11-30 08:13:33,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 233 transitions, 625 flow [2023-11-30 08:13:33,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:13:33,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:13:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2023-11-30 08:13:33,184 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8652777777777778 [2023-11-30 08:13:33,184 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 623 transitions. [2023-11-30 08:13:33,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 623 transitions. [2023-11-30 08:13:33,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:33,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 623 transitions. [2023-11-30 08:13:33,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 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) [2023-11-30 08:13:33,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-11-30 08:13:33,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-11-30 08:13:33,188 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 1 predicate places. [2023-11-30 08:13:33,188 INFO L500 AbstractCegarLoop]: Abstraction has has 217 places, 233 transitions, 625 flow [2023-11-30 08:13:33,189 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2023-11-30 08:13:33,189 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:33,189 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:33,189 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 08:13:33,189 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:33,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1954545258, now seen corresponding path program 1 times [2023-11-30 08:13:33,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:33,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084823903] [2023-11-30 08:13:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:33,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:33,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:33,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211326602] [2023-11-30 08:13:33,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:33,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:33,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:33,250 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) [2023-11-30 08:13:33,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 08:13:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:33,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:33,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:33,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:33,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:33,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084823903] [2023-11-30 08:13:33,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:33,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211326602] [2023-11-30 08:13:33,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211326602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:33,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:33,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:33,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675565997] [2023-11-30 08:13:33,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:33,447 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:33,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:33,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:33,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:33,449 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 240 [2023-11-30 08:13:33,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 233 transitions, 625 flow. Second operand has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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) [2023-11-30 08:13:33,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:33,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 240 [2023-11-30 08:13:33,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:33,543 INFO L124 PetriNetUnfolderBase]: 17/460 cut-off events. [2023-11-30 08:13:33,543 INFO L125 PetriNetUnfolderBase]: For 82/87 co-relation queries the response was YES. [2023-11-30 08:13:33,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 460 events. 17/460 cut-off events. For 82/87 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1580 event pairs, 8 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 361. Up to 51 conditions per place. [2023-11-30 08:13:33,545 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 34 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2023-11-30 08:13:33,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 232 transitions, 701 flow [2023-11-30 08:13:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:13:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:13:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 796 transitions. [2023-11-30 08:13:33,548 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8291666666666667 [2023-11-30 08:13:33,548 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 796 transitions. [2023-11-30 08:13:33,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 796 transitions. [2023-11-30 08:13:33,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:33,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 796 transitions. [2023-11-30 08:13:33,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 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) [2023-11-30 08:13:33,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-11-30 08:13:33,552 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-11-30 08:13:33,553 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 3 predicate places. [2023-11-30 08:13:33,553 INFO L500 AbstractCegarLoop]: Abstraction has has 219 places, 232 transitions, 701 flow [2023-11-30 08:13:33,554 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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) [2023-11-30 08:13:33,554 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:33,554 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:33,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:33,758 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 08:13:33,758 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:33,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:33,758 INFO L85 PathProgramCache]: Analyzing trace with hash 461361324, now seen corresponding path program 1 times [2023-11-30 08:13:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:33,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299515211] [2023-11-30 08:13:33,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:33,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:33,784 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:33,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706338438] [2023-11-30 08:13:33,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:33,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:33,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:33,791 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:33,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 08:13:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:33,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:33,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:33,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:33,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:33,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299515211] [2023-11-30 08:13:33,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:33,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706338438] [2023-11-30 08:13:33,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706338438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:33,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:33,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:33,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300335001] [2023-11-30 08:13:33,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:33,943 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:33,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:33,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:33,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:33,945 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 240 [2023-11-30 08:13:33,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 232 transitions, 701 flow. Second operand has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 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) [2023-11-30 08:13:33,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:33,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 240 [2023-11-30 08:13:33,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:34,063 INFO L124 PetriNetUnfolderBase]: 17/460 cut-off events. [2023-11-30 08:13:34,064 INFO L125 PetriNetUnfolderBase]: For 163/170 co-relation queries the response was YES. [2023-11-30 08:13:34,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 744 conditions, 460 events. 17/460 cut-off events. For 163/170 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1576 event pairs, 8 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 409. Up to 59 conditions per place. [2023-11-30 08:13:34,082 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 38 selfloop transitions, 4 changer transitions 0/235 dead transitions. [2023-11-30 08:13:34,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 235 transitions, 797 flow [2023-11-30 08:13:34,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:13:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:13:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 997 transitions. [2023-11-30 08:13:34,084 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8308333333333333 [2023-11-30 08:13:34,084 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 997 transitions. [2023-11-30 08:13:34,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 997 transitions. [2023-11-30 08:13:34,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:34,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 997 transitions. [2023-11-30 08:13:34,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 199.4) internal successors, (997), 5 states have internal predecessors, (997), 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) [2023-11-30 08:13:34,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-11-30 08:13:34,090 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-11-30 08:13:34,091 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 7 predicate places. [2023-11-30 08:13:34,091 INFO L500 AbstractCegarLoop]: Abstraction has has 223 places, 235 transitions, 797 flow [2023-11-30 08:13:34,092 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.25) internal successors, (777), 4 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) [2023-11-30 08:13:34,092 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:34,092 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:34,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:34,298 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:34,298 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:34,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:34,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1730994250, now seen corresponding path program 1 times [2023-11-30 08:13:34,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:34,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380483574] [2023-11-30 08:13:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:34,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:34,319 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:34,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803164193] [2023-11-30 08:13:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:34,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:34,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:34,326 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) [2023-11-30 08:13:34,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 08:13:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:34,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:13:34,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:34,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:34,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:34,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380483574] [2023-11-30 08:13:34,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:34,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803164193] [2023-11-30 08:13:34,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803164193] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:34,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:34,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-30 08:13:34,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048838263] [2023-11-30 08:13:34,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:34,613 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:13:34,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:13:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:13:34,615 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 240 [2023-11-30 08:13:34,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 235 transitions, 797 flow. Second operand has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 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) [2023-11-30 08:13:34,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:34,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 240 [2023-11-30 08:13:34,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:34,888 INFO L124 PetriNetUnfolderBase]: 17/546 cut-off events. [2023-11-30 08:13:34,888 INFO L125 PetriNetUnfolderBase]: For 284/293 co-relation queries the response was YES. [2023-11-30 08:13:34,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 546 events. 17/546 cut-off events. For 284/293 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1321 event pairs, 8 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 635. Up to 81 conditions per place. [2023-11-30 08:13:34,890 INFO L140 encePairwiseOnDemand]: 233/240 looper letters, 48 selfloop transitions, 9 changer transitions 0/250 dead transitions. [2023-11-30 08:13:34,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 250 transitions, 1041 flow [2023-11-30 08:13:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 08:13:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 08:13:34,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1779 transitions. [2023-11-30 08:13:34,894 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8236111111111111 [2023-11-30 08:13:34,894 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1779 transitions. [2023-11-30 08:13:34,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1779 transitions. [2023-11-30 08:13:34,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:34,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1779 transitions. [2023-11-30 08:13:34,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 197.66666666666666) internal successors, (1779), 9 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) [2023-11-30 08:13:34,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-11-30 08:13:34,903 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-11-30 08:13:34,904 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 15 predicate places. [2023-11-30 08:13:34,905 INFO L500 AbstractCegarLoop]: Abstraction has has 231 places, 250 transitions, 1041 flow [2023-11-30 08:13:34,905 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 195.0) internal successors, (1560), 8 states have internal predecessors, (1560), 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) [2023-11-30 08:13:34,905 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:34,906 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:34,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-30 08:13:35,111 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:35,111 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:35,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:35,112 INFO L85 PathProgramCache]: Analyzing trace with hash -756711700, now seen corresponding path program 1 times [2023-11-30 08:13:35,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:35,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422854978] [2023-11-30 08:13:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:35,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:35,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:35,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134584226] [2023-11-30 08:13:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:35,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:35,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:35,147 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) [2023-11-30 08:13:35,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 08:13:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:35,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:13:35,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:35,455 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:35,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:35,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422854978] [2023-11-30 08:13:35,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:35,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134584226] [2023-11-30 08:13:35,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134584226] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:35,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:35,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-30 08:13:35,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469369339] [2023-11-30 08:13:35,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:35,589 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-30 08:13:35,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:35,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-30 08:13:35,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-30 08:13:35,593 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 240 [2023-11-30 08:13:35,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 250 transitions, 1041 flow. Second operand has 14 states, 14 states have (on average 195.78571428571428) internal successors, (2741), 14 states have internal predecessors, (2741), 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) [2023-11-30 08:13:35,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:35,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 240 [2023-11-30 08:13:35,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:35,787 INFO L124 PetriNetUnfolderBase]: 19/632 cut-off events. [2023-11-30 08:13:35,788 INFO L125 PetriNetUnfolderBase]: For 449/460 co-relation queries the response was YES. [2023-11-30 08:13:35,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 632 events. 19/632 cut-off events. For 449/460 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1569 event pairs, 8 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 907. Up to 103 conditions per place. [2023-11-30 08:13:35,790 INFO L140 encePairwiseOnDemand]: 233/240 looper letters, 56 selfloop transitions, 16 changer transitions 0/265 dead transitions. [2023-11-30 08:13:35,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 265 transitions, 1347 flow [2023-11-30 08:13:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 08:13:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 08:13:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2942 transitions. [2023-11-30 08:13:35,795 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8172222222222222 [2023-11-30 08:13:35,795 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2942 transitions. [2023-11-30 08:13:35,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2942 transitions. [2023-11-30 08:13:35,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:35,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2942 transitions. [2023-11-30 08:13:35,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 196.13333333333333) internal successors, (2942), 15 states have internal predecessors, (2942), 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) [2023-11-30 08:13:35,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 240.0) internal successors, (3840), 16 states have internal predecessors, (3840), 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) [2023-11-30 08:13:35,833 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 240.0) internal successors, (3840), 16 states have internal predecessors, (3840), 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) [2023-11-30 08:13:35,833 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 28 predicate places. [2023-11-30 08:13:35,833 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 265 transitions, 1347 flow [2023-11-30 08:13:35,834 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 195.78571428571428) internal successors, (2741), 14 states have internal predecessors, (2741), 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) [2023-11-30 08:13:35,834 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:35,835 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:35,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:36,041 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:36,043 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:36,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:36,043 INFO L85 PathProgramCache]: Analyzing trace with hash -190390646, now seen corresponding path program 2 times [2023-11-30 08:13:36,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131981007] [2023-11-30 08:13:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:36,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:36,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:36,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145040721] [2023-11-30 08:13:36,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:36,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:36,065 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) [2023-11-30 08:13:36,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 08:13:36,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:36,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:36,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:36,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-11-30 08:13:36,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:36,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:36,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131981007] [2023-11-30 08:13:36,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:36,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145040721] [2023-11-30 08:13:36,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145040721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:36,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:36,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:36,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166530534] [2023-11-30 08:13:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:36,311 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:36,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:36,312 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 240 [2023-11-30 08:13:36,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 265 transitions, 1347 flow. Second operand has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 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) [2023-11-30 08:13:36,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:36,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 240 [2023-11-30 08:13:36,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:36,398 INFO L124 PetriNetUnfolderBase]: 19/630 cut-off events. [2023-11-30 08:13:36,398 INFO L125 PetriNetUnfolderBase]: For 604/617 co-relation queries the response was YES. [2023-11-30 08:13:36,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 630 events. 19/630 cut-off events. For 604/617 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1563 event pairs, 8 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 965. Up to 103 conditions per place. [2023-11-30 08:13:36,400 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 56 selfloop transitions, 5 changer transitions 0/264 dead transitions. [2023-11-30 08:13:36,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 264 transitions, 1467 flow [2023-11-30 08:13:36,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:13:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:13:36,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 787 transitions. [2023-11-30 08:13:36,402 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8197916666666667 [2023-11-30 08:13:36,402 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 787 transitions. [2023-11-30 08:13:36,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 787 transitions. [2023-11-30 08:13:36,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:36,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 787 transitions. [2023-11-30 08:13:36,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 196.75) internal successors, (787), 4 states have internal predecessors, (787), 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) [2023-11-30 08:13:36,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-11-30 08:13:36,405 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-11-30 08:13:36,406 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 30 predicate places. [2023-11-30 08:13:36,406 INFO L500 AbstractCegarLoop]: Abstraction has has 246 places, 264 transitions, 1467 flow [2023-11-30 08:13:36,406 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 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) [2023-11-30 08:13:36,406 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:36,406 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:36,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:36,611 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:36,612 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:36,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1607142162, now seen corresponding path program 1 times [2023-11-30 08:13:36,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:36,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238015773] [2023-11-30 08:13:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:36,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:36,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:36,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955678722] [2023-11-30 08:13:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:36,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:36,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:36,638 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:36,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 08:13:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:36,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 08:13:36,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:36,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:37,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238015773] [2023-11-30 08:13:37,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955678722] [2023-11-30 08:13:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955678722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:37,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:37,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-30 08:13:37,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094306917] [2023-11-30 08:13:37,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:37,071 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 08:13:37,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 08:13:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-30 08:13:37,075 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 240 [2023-11-30 08:13:37,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 264 transitions, 1467 flow. Second operand has 16 states, 16 states have (on average 195.75) internal successors, (3132), 16 states have internal predecessors, (3132), 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) [2023-11-30 08:13:37,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:37,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 240 [2023-11-30 08:13:37,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:37,351 INFO L124 PetriNetUnfolderBase]: 17/878 cut-off events. [2023-11-30 08:13:37,351 INFO L125 PetriNetUnfolderBase]: For 913/928 co-relation queries the response was YES. [2023-11-30 08:13:37,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 878 events. 17/878 cut-off events. For 913/928 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1329 event pairs, 8 based on Foata normal form. 0/833 useless extension candidates. Maximal degree in co-relation 1683. Up to 159 conditions per place. [2023-11-30 08:13:37,354 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 91 selfloop transitions, 21 changer transitions 0/304 dead transitions. [2023-11-30 08:13:37,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 304 transitions, 2249 flow [2023-11-30 08:13:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 08:13:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 08:13:37,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4127 transitions. [2023-11-30 08:13:37,360 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8188492063492063 [2023-11-30 08:13:37,360 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4127 transitions. [2023-11-30 08:13:37,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4127 transitions. [2023-11-30 08:13:37,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:37,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4127 transitions. [2023-11-30 08:13:37,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 196.52380952380952) internal successors, (4127), 21 states have internal predecessors, (4127), 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) [2023-11-30 08:13:37,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 240.0) internal successors, (5280), 22 states have internal predecessors, (5280), 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) [2023-11-30 08:13:37,374 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 240.0) internal successors, (5280), 22 states have internal predecessors, (5280), 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) [2023-11-30 08:13:37,374 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 50 predicate places. [2023-11-30 08:13:37,374 INFO L500 AbstractCegarLoop]: Abstraction has has 266 places, 304 transitions, 2249 flow [2023-11-30 08:13:37,375 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 195.75) internal successors, (3132), 16 states have internal predecessors, (3132), 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) [2023-11-30 08:13:37,375 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:37,375 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:37,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:37,584 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:37,584 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:37,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:37,585 INFO L85 PathProgramCache]: Analyzing trace with hash 997046382, now seen corresponding path program 2 times [2023-11-30 08:13:37,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:37,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332362866] [2023-11-30 08:13:37,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:37,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:37,620 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:37,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902428026] [2023-11-30 08:13:37,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:37,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:37,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:37,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:37,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 08:13:37,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:37,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:37,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:37,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2023-11-30 08:13:38,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:38,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:38,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332362866] [2023-11-30 08:13:38,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:38,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902428026] [2023-11-30 08:13:38,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902428026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:38,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:38,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:38,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499055022] [2023-11-30 08:13:38,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:38,115 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:38,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:38,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:38,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:38,116 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 240 [2023-11-30 08:13:38,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 304 transitions, 2249 flow. Second operand has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2023-11-30 08:13:38,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:38,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 240 [2023-11-30 08:13:38,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:38,287 INFO L124 PetriNetUnfolderBase]: 17/878 cut-off events. [2023-11-30 08:13:38,288 INFO L125 PetriNetUnfolderBase]: For 1156/1173 co-relation queries the response was YES. [2023-11-30 08:13:38,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2253 conditions, 878 events. 17/878 cut-off events. For 1156/1173 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1328 event pairs, 8 based on Foata normal form. 0/834 useless extension candidates. Maximal degree in co-relation 1773. Up to 159 conditions per place. [2023-11-30 08:13:38,291 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 84 selfloop transitions, 4 changer transitions 0/307 dead transitions. [2023-11-30 08:13:38,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 307 transitions, 2437 flow [2023-11-30 08:13:38,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:13:38,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:13:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 988 transitions. [2023-11-30 08:13:38,294 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8233333333333334 [2023-11-30 08:13:38,294 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 988 transitions. [2023-11-30 08:13:38,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 988 transitions. [2023-11-30 08:13:38,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:38,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 988 transitions. [2023-11-30 08:13:38,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 197.6) internal successors, (988), 5 states have internal predecessors, (988), 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) [2023-11-30 08:13:38,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-11-30 08:13:38,302 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-11-30 08:13:38,303 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 54 predicate places. [2023-11-30 08:13:38,303 INFO L500 AbstractCegarLoop]: Abstraction has has 270 places, 307 transitions, 2437 flow [2023-11-30 08:13:38,303 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2023-11-30 08:13:38,303 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:38,303 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:38,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:38,509 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-30 08:13:38,509 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:38,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 477641418, now seen corresponding path program 1 times [2023-11-30 08:13:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:38,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882388940] [2023-11-30 08:13:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:38,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:38,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:38,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561094349] [2023-11-30 08:13:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:38,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:38,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:38,554 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:38,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 08:13:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:38,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 1317 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 08:13:38,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 1 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:39,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 1 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:39,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:39,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882388940] [2023-11-30 08:13:39,566 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:39,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561094349] [2023-11-30 08:13:39,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561094349] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:39,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:39,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-11-30 08:13:39,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064289232] [2023-11-30 08:13:39,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:39,567 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-30 08:13:39,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:39,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-30 08:13:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-11-30 08:13:39,571 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 240 [2023-11-30 08:13:39,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 307 transitions, 2437 flow. Second operand has 32 states, 32 states have (on average 196.15625) internal successors, (6277), 32 states have internal predecessors, (6277), 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) [2023-11-30 08:13:39,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:39,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 240 [2023-11-30 08:13:39,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:40,674 INFO L124 PetriNetUnfolderBase]: 17/1550 cut-off events. [2023-11-30 08:13:40,674 INFO L125 PetriNetUnfolderBase]: For 1885/1904 co-relation queries the response was YES. [2023-11-30 08:13:40,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4414 conditions, 1550 events. 17/1550 cut-off events. For 1885/1904 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1347 event pairs, 8 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 3905. Up to 319 conditions per place. [2023-11-30 08:13:40,679 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 179 selfloop transitions, 45 changer transitions 0/419 dead transitions. [2023-11-30 08:13:40,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 419 transitions, 4789 flow [2023-11-30 08:13:40,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-30 08:13:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-30 08:13:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 8827 transitions. [2023-11-30 08:13:40,690 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8173148148148148 [2023-11-30 08:13:40,690 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 8827 transitions. [2023-11-30 08:13:40,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 8827 transitions. [2023-11-30 08:13:40,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:40,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 8827 transitions. [2023-11-30 08:13:40,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 196.15555555555557) internal successors, (8827), 45 states have internal predecessors, (8827), 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) [2023-11-30 08:13:40,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 240.0) internal successors, (11040), 46 states have internal predecessors, (11040), 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) [2023-11-30 08:13:40,716 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 240.0) internal successors, (11040), 46 states have internal predecessors, (11040), 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) [2023-11-30 08:13:40,717 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 98 predicate places. [2023-11-30 08:13:40,717 INFO L500 AbstractCegarLoop]: Abstraction has has 314 places, 419 transitions, 4789 flow [2023-11-30 08:13:40,718 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 196.15625) internal successors, (6277), 32 states have internal predecessors, (6277), 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) [2023-11-30 08:13:40,718 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:40,718 INFO L232 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:40,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-30 08:13:40,925 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-30 08:13:40,926 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:40,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:40,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1040913354, now seen corresponding path program 2 times [2023-11-30 08:13:40,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:40,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896720083] [2023-11-30 08:13:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:40,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:41,102 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:41,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813184742] [2023-11-30 08:13:41,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:41,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:41,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:41,112 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:41,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-30 08:13:41,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:41,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:41,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:41,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4321 trivial. 0 not checked. [2023-11-30 08:13:41,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:41,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:41,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896720083] [2023-11-30 08:13:41,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:41,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813184742] [2023-11-30 08:13:41,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813184742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:41,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:41,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:41,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491965948] [2023-11-30 08:13:41,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:41,619 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:41,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:41,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:41,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:41,620 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 240 [2023-11-30 08:13:41,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 419 transitions, 4789 flow. Second operand has 4 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 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) [2023-11-30 08:13:41,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:41,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 240 [2023-11-30 08:13:41,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:42,052 INFO L124 PetriNetUnfolderBase]: 94/1742 cut-off events. [2023-11-30 08:13:42,052 INFO L125 PetriNetUnfolderBase]: For 7047/7178 co-relation queries the response was YES. [2023-11-30 08:13:42,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5601 conditions, 1742 events. 94/1742 cut-off events. For 7047/7178 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3020 event pairs, 32 based on Foata normal form. 2/1623 useless extension candidates. Maximal degree in co-relation 3912. Up to 398 conditions per place. [2023-11-30 08:13:42,058 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 35 selfloop transitions, 4 changer transitions 0/434 dead transitions. [2023-11-30 08:13:42,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 434 transitions, 5217 flow [2023-11-30 08:13:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:13:42,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:13:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 824 transitions. [2023-11-30 08:13:42,060 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8583333333333333 [2023-11-30 08:13:42,060 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 824 transitions. [2023-11-30 08:13:42,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 824 transitions. [2023-11-30 08:13:42,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:42,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 824 transitions. [2023-11-30 08:13:42,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 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) [2023-11-30 08:13:42,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-11-30 08:13:42,062 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-11-30 08:13:42,062 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 100 predicate places. [2023-11-30 08:13:42,062 INFO L500 AbstractCegarLoop]: Abstraction has has 316 places, 434 transitions, 5217 flow [2023-11-30 08:13:42,062 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 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) [2023-11-30 08:13:42,063 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:42,063 INFO L232 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:42,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:42,269 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-30 08:13:42,269 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:42,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:42,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2091423764, now seen corresponding path program 1 times [2023-11-30 08:13:42,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:42,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604561145] [2023-11-30 08:13:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:42,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:42,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:42,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554442206] [2023-11-30 08:13:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:42,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:42,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:42,344 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:42,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-30 08:13:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:42,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-30 08:13:42,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 1 proven. 4320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:43,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 1 proven. 4320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:13:44,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:44,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604561145] [2023-11-30 08:13:44,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:44,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554442206] [2023-11-30 08:13:44,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554442206] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:44,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:44,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 61 [2023-11-30 08:13:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090533737] [2023-11-30 08:13:44,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:44,783 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-11-30 08:13:44,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:44,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-11-30 08:13:44,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=960, Invalid=2700, Unknown=0, NotChecked=0, Total=3660 [2023-11-30 08:13:44,791 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 240 [2023-11-30 08:13:44,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 434 transitions, 5217 flow. Second operand has 61 states, 61 states have (on average 196.39344262295083) internal successors, (11980), 61 states have internal predecessors, (11980), 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) [2023-11-30 08:13:44,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:44,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 240 [2023-11-30 08:13:44,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:47,496 INFO L124 PetriNetUnfolderBase]: 125/3221 cut-off events. [2023-11-30 08:13:47,496 INFO L125 PetriNetUnfolderBase]: For 10408/10431 co-relation queries the response was YES. [2023-11-30 08:13:47,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10545 conditions, 3221 events. 125/3221 cut-off events. For 10408/10431 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4412 event pairs, 61 based on Foata normal form. 0/3016 useless extension candidates. Maximal degree in co-relation 8240. Up to 722 conditions per place. [2023-11-30 08:13:47,507 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 360 selfloop transitions, 90 changer transitions 0/644 dead transitions. [2023-11-30 08:13:47,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 644 transitions, 10107 flow [2023-11-30 08:13:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-30 08:13:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2023-11-30 08:13:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 17639 transitions. [2023-11-30 08:13:47,521 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8166203703703704 [2023-11-30 08:13:47,522 INFO L72 ComplementDD]: Start complementDD. Operand 90 states and 17639 transitions. [2023-11-30 08:13:47,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 17639 transitions. [2023-11-30 08:13:47,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:47,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 90 states and 17639 transitions. [2023-11-30 08:13:47,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 91 states, 90 states have (on average 195.98888888888888) internal successors, (17639), 90 states have internal predecessors, (17639), 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) [2023-11-30 08:13:47,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 91 states, 91 states have (on average 240.0) internal successors, (21840), 91 states have internal predecessors, (21840), 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) [2023-11-30 08:13:47,630 INFO L81 ComplementDD]: Finished complementDD. Result has 91 states, 91 states have (on average 240.0) internal successors, (21840), 91 states have internal predecessors, (21840), 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) [2023-11-30 08:13:47,631 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 189 predicate places. [2023-11-30 08:13:47,631 INFO L500 AbstractCegarLoop]: Abstraction has has 405 places, 644 transitions, 10107 flow [2023-11-30 08:13:47,634 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 196.39344262295083) internal successors, (11980), 61 states have internal predecessors, (11980), 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) [2023-11-30 08:13:47,634 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:47,635 INFO L232 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:47,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:47,845 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-30 08:13:47,845 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:47,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:47,846 INFO L85 PathProgramCache]: Analyzing trace with hash 251045834, now seen corresponding path program 2 times [2023-11-30 08:13:47,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:47,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811283813] [2023-11-30 08:13:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:47,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:48,049 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699987159] [2023-11-30 08:13:48,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:48,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:48,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:48,050 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:48,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-30 08:13:49,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:49,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:49,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:49,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 17866 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17866 trivial. 0 not checked. [2023-11-30 08:13:49,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:49,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811283813] [2023-11-30 08:13:49,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699987159] [2023-11-30 08:13:49,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699987159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:49,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:49,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:49,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453782116] [2023-11-30 08:13:49,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:49,161 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:49,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:49,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:49,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:49,162 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 240 [2023-11-30 08:13:49,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 644 transitions, 10107 flow. Second operand has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-30 08:13:49,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:49,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 240 [2023-11-30 08:13:49,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:50,523 INFO L124 PetriNetUnfolderBase]: 117/3133 cut-off events. [2023-11-30 08:13:50,523 INFO L125 PetriNetUnfolderBase]: For 11405/12021 co-relation queries the response was YES. [2023-11-30 08:13:50,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10560 conditions, 3133 events. 117/3133 cut-off events. For 11405/12021 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3682 event pairs, 31 based on Foata normal form. 28/3001 useless extension candidates. Maximal degree in co-relation 8217. Up to 714 conditions per place. [2023-11-30 08:13:50,531 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 52 selfloop transitions, 4 changer transitions 0/661 dead transitions. [2023-11-30 08:13:50,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 661 transitions, 10639 flow [2023-11-30 08:13:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:13:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:13:50,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1030 transitions. [2023-11-30 08:13:50,533 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8583333333333333 [2023-11-30 08:13:50,533 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1030 transitions. [2023-11-30 08:13:50,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1030 transitions. [2023-11-30 08:13:50,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:50,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1030 transitions. [2023-11-30 08:13:50,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 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) [2023-11-30 08:13:50,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-11-30 08:13:50,535 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-11-30 08:13:50,536 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 192 predicate places. [2023-11-30 08:13:50,536 INFO L500 AbstractCegarLoop]: Abstraction has has 408 places, 661 transitions, 10639 flow [2023-11-30 08:13:50,536 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-30 08:13:50,536 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:50,536 INFO L232 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:50,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:50,737 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-30 08:13:50,737 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:50,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:50,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1208301041, now seen corresponding path program 1 times [2023-11-30 08:13:50,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:50,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019256448] [2023-11-30 08:13:50,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:50,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:50,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235908944] [2023-11-30 08:13:50,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:50,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:50,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:50,869 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:50,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-30 08:13:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:52,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 5180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:13:52,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:53,023 INFO L134 CoverageAnalysis]: Checked inductivity of 17871 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17870 trivial. 0 not checked. [2023-11-30 08:13:53,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 17871 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17870 trivial. 0 not checked. [2023-11-30 08:13:53,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:53,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019256448] [2023-11-30 08:13:53,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:53,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235908944] [2023-11-30 08:13:53,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235908944] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:53,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:53,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-30 08:13:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944821791] [2023-11-30 08:13:53,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:53,999 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:13:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:53,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:13:53,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:13:54,000 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 240 [2023-11-30 08:13:54,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 661 transitions, 10639 flow. Second operand has 8 states, 8 states have (on average 192.875) internal successors, (1543), 8 states have internal predecessors, (1543), 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) [2023-11-30 08:13:54,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:54,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 240 [2023-11-30 08:13:54,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:56,624 INFO L124 PetriNetUnfolderBase]: 118/4396 cut-off events. [2023-11-30 08:13:56,625 INFO L125 PetriNetUnfolderBase]: For 15098/15620 co-relation queries the response was YES. [2023-11-30 08:13:56,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15647 conditions, 4396 events. 118/4396 cut-off events. For 15098/15620 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3128 event pairs, 13 based on Foata normal form. 0/4186 useless extension candidates. Maximal degree in co-relation 13154. Up to 1042 conditions per place. [2023-11-30 08:13:56,636 INFO L140 encePairwiseOnDemand]: 233/240 looper letters, 453 selfloop transitions, 9 changer transitions 0/819 dead transitions. [2023-11-30 08:13:56,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 819 transitions, 15189 flow [2023-11-30 08:13:56,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 08:13:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 08:13:56,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1761 transitions. [2023-11-30 08:13:56,638 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8152777777777778 [2023-11-30 08:13:56,638 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1761 transitions. [2023-11-30 08:13:56,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1761 transitions. [2023-11-30 08:13:56,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:56,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1761 transitions. [2023-11-30 08:13:56,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 195.66666666666666) internal successors, (1761), 9 states have internal predecessors, (1761), 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) [2023-11-30 08:13:56,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-11-30 08:13:56,641 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-11-30 08:13:56,642 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 200 predicate places. [2023-11-30 08:13:56,642 INFO L500 AbstractCegarLoop]: Abstraction has has 416 places, 819 transitions, 15189 flow [2023-11-30 08:13:56,642 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 192.875) internal successors, (1543), 8 states have internal predecessors, (1543), 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) [2023-11-30 08:13:56,642 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:56,642 INFO L232 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:56,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:56,857 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-30 08:13:56,858 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:56,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:56,858 INFO L85 PathProgramCache]: Analyzing trace with hash -659097780, now seen corresponding path program 1 times [2023-11-30 08:13:56,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:56,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997000849] [2023-11-30 08:13:56,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:56,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:57,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:57,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753698330] [2023-11-30 08:13:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:57,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:57,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:57,030 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:13:57,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-30 08:14:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:14:04,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 5325 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 08:14:04,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:14:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 19169 backedges. 1304 proven. 0 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2023-11-30 08:14:05,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:14:05,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:14:05,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997000849] [2023-11-30 08:14:05,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:14:05,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753698330] [2023-11-30 08:14:05,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753698330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:14:05,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:14:05,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 08:14:05,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730426966] [2023-11-30 08:14:05,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:14:05,374 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 08:14:05,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:14:05,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 08:14:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-30 08:14:05,375 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 240 [2023-11-30 08:14:05,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 819 transitions, 15189 flow. Second operand has 9 states, 9 states have (on average 182.33333333333334) internal successors, (1641), 9 states have internal predecessors, (1641), 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) [2023-11-30 08:14:05,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:14:05,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 240 [2023-11-30 08:14:05,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:14:08,395 INFO L124 PetriNetUnfolderBase]: 112/4466 cut-off events. [2023-11-30 08:14:08,395 INFO L125 PetriNetUnfolderBase]: For 17353/17843 co-relation queries the response was YES. [2023-11-30 08:14:08,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16002 conditions, 4466 events. 112/4466 cut-off events. For 17353/17843 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3698 event pairs, 44 based on Foata normal form. 0/4291 useless extension candidates. Maximal degree in co-relation 13400. Up to 974 conditions per place. [2023-11-30 08:14:08,431 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 697 selfloop transitions, 77 changer transitions 0/947 dead transitions. [2023-11-30 08:14:08,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 947 transitions, 18381 flow [2023-11-30 08:14:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 08:14:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 08:14:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2204 transitions. [2023-11-30 08:14:08,434 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7652777777777777 [2023-11-30 08:14:08,434 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2204 transitions. [2023-11-30 08:14:08,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2204 transitions. [2023-11-30 08:14:08,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:14:08,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2204 transitions. [2023-11-30 08:14:08,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 183.66666666666666) internal successors, (2204), 12 states have internal predecessors, (2204), 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) [2023-11-30 08:14:08,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 240.0) internal successors, (3120), 13 states have internal predecessors, (3120), 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) [2023-11-30 08:14:08,452 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 240.0) internal successors, (3120), 13 states have internal predecessors, (3120), 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) [2023-11-30 08:14:08,453 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 210 predicate places. [2023-11-30 08:14:08,453 INFO L500 AbstractCegarLoop]: Abstraction has has 426 places, 947 transitions, 18381 flow [2023-11-30 08:14:08,453 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 182.33333333333334) internal successors, (1641), 9 states have internal predecessors, (1641), 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) [2023-11-30 08:14:08,453 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:14:08,453 INFO L232 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:14:08,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-30 08:14:08,680 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:14:08,680 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:14:08,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:14:08,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1042805808, now seen corresponding path program 1 times [2023-11-30 08:14:08,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:14:08,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519821753] [2023-11-30 08:14:08,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:08,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:14:09,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:14:09,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273576649] [2023-11-30 08:14:09,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:09,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:14:09,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:14:09,092 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:14:09,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-30 08:14:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:14:12,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 5326 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-30 08:14:12,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:14:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 19200 backedges. 0 proven. 1335 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2023-11-30 08:14:13,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:14:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 19200 backedges. 0 proven. 1335 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2023-11-30 08:14:14,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:14:14,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519821753] [2023-11-30 08:14:14,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:14:14,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273576649] [2023-11-30 08:14:14,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273576649] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:14:14,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:14:14,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-30 08:14:14,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216939263] [2023-11-30 08:14:14,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:14:14,407 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-30 08:14:14,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:14:14,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-30 08:14:14,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-30 08:14:14,408 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 240 [2023-11-30 08:14:14,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 947 transitions, 18381 flow. Second operand has 14 states, 14 states have (on average 183.64285714285714) internal successors, (2571), 14 states have internal predecessors, (2571), 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) [2023-11-30 08:14:14,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:14:14,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 240 [2023-11-30 08:14:14,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:14:17,510 INFO L124 PetriNetUnfolderBase]: 123/4412 cut-off events. [2023-11-30 08:14:17,510 INFO L125 PetriNetUnfolderBase]: For 21882/22218 co-relation queries the response was YES. [2023-11-30 08:14:17,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16835 conditions, 4412 events. 123/4412 cut-off events. For 21882/22218 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3660 event pairs, 30 based on Foata normal form. 0/4272 useless extension candidates. Maximal degree in co-relation 13944. Up to 956 conditions per place. [2023-11-30 08:14:17,519 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 733 selfloop transitions, 195 changer transitions 0/1101 dead transitions. [2023-11-30 08:14:17,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 1101 transitions, 22899 flow [2023-11-30 08:14:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-30 08:14:17,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-30 08:14:17,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4386 transitions. [2023-11-30 08:14:17,523 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7614583333333333 [2023-11-30 08:14:17,523 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4386 transitions. [2023-11-30 08:14:17,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4386 transitions. [2023-11-30 08:14:17,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:14:17,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4386 transitions. [2023-11-30 08:14:17,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 182.75) internal successors, (4386), 24 states have internal predecessors, (4386), 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) [2023-11-30 08:14:17,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 240.0) internal successors, (6000), 25 states have internal predecessors, (6000), 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) [2023-11-30 08:14:17,532 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 240.0) internal successors, (6000), 25 states have internal predecessors, (6000), 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) [2023-11-30 08:14:17,533 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 232 predicate places. [2023-11-30 08:14:17,533 INFO L500 AbstractCegarLoop]: Abstraction has has 448 places, 1101 transitions, 22899 flow [2023-11-30 08:14:17,533 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 183.64285714285714) internal successors, (2571), 14 states have internal predecessors, (2571), 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) [2023-11-30 08:14:17,533 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:14:17,534 INFO L232 CegarLoopForPetriNet]: trace histogram [63, 63, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:14:17,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-30 08:14:17,744 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-30 08:14:17,744 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:14:17,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:14:17,745 INFO L85 PathProgramCache]: Analyzing trace with hash 196371460, now seen corresponding path program 2 times [2023-11-30 08:14:17,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:14:17,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250082334] [2023-11-30 08:14:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:17,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:14:18,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:14:18,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937815840] [2023-11-30 08:14:18,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:14:18,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:14:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:14:18,021 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:14:18,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-30 08:15:15,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 08:15:15,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:15:15,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 10554 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-30 08:15:15,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:15:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 77880 backedges. 47 proven. 42103 refuted. 0 times theorem prover too weak. 35730 trivial. 0 not checked. [2023-11-30 08:15:17,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:16:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 77880 backedges. 40 proven. 42110 refuted. 0 times theorem prover too weak. 35730 trivial. 0 not checked. [2023-11-30 08:16:34,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:16:34,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250082334] [2023-11-30 08:16:34,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:16:34,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937815840] [2023-11-30 08:16:34,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937815840] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:16:34,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:16:34,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-30 08:16:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107520155] [2023-11-30 08:16:34,811 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:16:34,812 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-30 08:16:34,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:16:34,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-30 08:16:34,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2023-11-30 08:16:34,814 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 240 [2023-11-30 08:16:34,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 1101 transitions, 22899 flow. Second operand has 24 states, 24 states have (on average 183.875) internal successors, (4413), 24 states have internal predecessors, (4413), 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) [2023-11-30 08:16:34,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:16:34,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 240 [2023-11-30 08:16:34,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:16:41,927 INFO L124 PetriNetUnfolderBase]: 131/5600 cut-off events. [2023-11-30 08:16:41,927 INFO L125 PetriNetUnfolderBase]: For 29078/29422 co-relation queries the response was YES. [2023-11-30 08:16:41,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22391 conditions, 5600 events. 131/5600 cut-off events. For 29078/29422 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3836 event pairs, 19 based on Foata normal form. 0/5490 useless extension candidates. Maximal degree in co-relation 19245. Up to 1202 conditions per place. [2023-11-30 08:16:41,944 INFO L140 encePairwiseOnDemand]: 226/240 looper letters, 683 selfloop transitions, 502 changer transitions 0/1358 dead transitions. [2023-11-30 08:16:41,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 1358 transitions, 31147 flow [2023-11-30 08:16:41,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-30 08:16:41,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-11-30 08:16:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 8880 transitions. [2023-11-30 08:16:41,949 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7551020408163265 [2023-11-30 08:16:41,949 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 8880 transitions. [2023-11-30 08:16:41,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 8880 transitions. [2023-11-30 08:16:41,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:16:41,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 8880 transitions. [2023-11-30 08:16:41,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 181.22448979591837) internal successors, (8880), 49 states have internal predecessors, (8880), 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) [2023-11-30 08:16:41,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 240.0) internal successors, (12000), 50 states have internal predecessors, (12000), 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) [2023-11-30 08:16:41,965 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 240.0) internal successors, (12000), 50 states have internal predecessors, (12000), 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) [2023-11-30 08:16:41,965 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 279 predicate places. [2023-11-30 08:16:41,965 INFO L500 AbstractCegarLoop]: Abstraction has has 495 places, 1358 transitions, 31147 flow [2023-11-30 08:16:41,966 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 183.875) internal successors, (4413), 24 states have internal predecessors, (4413), 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) [2023-11-30 08:16:41,966 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:16:41,967 INFO L232 CegarLoopForPetriNet]: trace histogram [90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:16:42,180 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forcibly destroying the process [2023-11-30 08:16:42,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 137 [2023-11-30 08:16:42,233 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 08:16:42,234 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:16:42,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:16:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash 531047601, now seen corresponding path program 2 times [2023-11-30 08:16:42,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:16:42,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204588447] [2023-11-30 08:16:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:16:42,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:16:42,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:16:42,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292175345] [2023-11-30 08:16:42,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:16:42,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:16:42,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:16:42,597 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:16:42,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-30 08:16:45,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 08:16:45,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:16:46,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 15302 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 08:16:46,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:16:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 164534 backedges. 0 proven. 110934 refuted. 0 times theorem prover too weak. 53600 trivial. 0 not checked. [2023-11-30 08:16:48,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:16:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 164534 backedges. 0 proven. 110934 refuted. 0 times theorem prover too weak. 53600 trivial. 0 not checked. [2023-11-30 08:16:51,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:16:51,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204588447] [2023-11-30 08:16:51,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:16:51,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292175345] [2023-11-30 08:16:51,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292175345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:16:51,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:16:51,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-30 08:16:51,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657964545] [2023-11-30 08:16:51,601 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:16:51,606 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 08:16:51,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:16:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 08:16:51,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-30 08:16:51,608 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 240 [2023-11-30 08:16:51,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 1358 transitions, 31147 flow. Second operand has 16 states, 16 states have (on average 193.9375) internal successors, (3103), 16 states have internal predecessors, (3103), 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) [2023-11-30 08:16:51,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:16:51,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 240 [2023-11-30 08:16:51,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:17:05,204 INFO L124 PetriNetUnfolderBase]: 126/9380 cut-off events. [2023-11-30 08:17:05,205 INFO L125 PetriNetUnfolderBase]: For 40543/41105 co-relation queries the response was YES. [2023-11-30 08:17:05,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37705 conditions, 9380 events. 126/9380 cut-off events. For 40543/41105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3413 event pairs, 40 based on Foata normal form. 0/9256 useless extension candidates. Maximal degree in co-relation 34546. Up to 1988 conditions per place. [2023-11-30 08:17:05,225 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 730 selfloop transitions, 21 changer transitions 0/1660 dead transitions. [2023-11-30 08:17:05,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 1660 transitions, 41781 flow [2023-11-30 08:17:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 08:17:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 08:17:05,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4073 transitions. [2023-11-30 08:17:05,227 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8081349206349207 [2023-11-30 08:17:05,227 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4073 transitions. [2023-11-30 08:17:05,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4073 transitions. [2023-11-30 08:17:05,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:17:05,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4073 transitions. [2023-11-30 08:17:05,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 193.95238095238096) internal successors, (4073), 21 states have internal predecessors, (4073), 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) [2023-11-30 08:17:05,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 240.0) internal successors, (5280), 22 states have internal predecessors, (5280), 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) [2023-11-30 08:17:05,234 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 240.0) internal successors, (5280), 22 states have internal predecessors, (5280), 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) [2023-11-30 08:17:05,234 INFO L307 CegarLoopForPetriNet]: 216 programPoint places, 299 predicate places. [2023-11-30 08:17:05,234 INFO L500 AbstractCegarLoop]: Abstraction has has 515 places, 1660 transitions, 41781 flow [2023-11-30 08:17:05,235 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 193.9375) internal successors, (3103), 16 states have internal predecessors, (3103), 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) [2023-11-30 08:17:05,235 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:17:05,236 INFO L232 CegarLoopForPetriNet]: trace histogram [210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:17:05,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-30 08:17:05,452 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-30 08:17:05,452 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:17:05,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:17:05,453 INFO L85 PathProgramCache]: Analyzing trace with hash -712043983, now seen corresponding path program 3 times [2023-11-30 08:17:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:17:05,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301300902] [2023-11-30 08:17:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:17:05,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:17:06,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:17:06,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054152776] [2023-11-30 08:17:06,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 08:17:06,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:17:06,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:17:06,378 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:17:06,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process Received shutdown request... [2023-11-30 08:28:04,403 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 08:28:04,404 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 [2023-11-30 08:28:05,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-30 08:28:05,603 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forcibly destroying the process [2023-11-30 08:28:05,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-11-30 08:28:05,639 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2023-11-30 08:28:05,641 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forcibly destroying the process [2023-11-30 08:28:05,642 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:28:05,642 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2023-11-30 08:28:05,643 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2023-11-30 08:28:05,644 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2023-11-30 08:28:05,644 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2023-11-30 08:28:05,644 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2023-11-30 08:28:05,644 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2023-11-30 08:28:05,644 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2023-11-30 08:28:05,644 INFO L457 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-30 08:28:05,647 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:28:05,647 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:28:05,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:28:05 BasicIcfg [2023-11-30 08:28:05,650 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:28:05,650 INFO L158 Benchmark]: Toolchain (without parser) took 874574.69ms. Allocated memory was 572.5MB in the beginning and 3.5GB in the end (delta: 2.9GB). Free memory was 523.7MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. [2023-11-30 08:28:05,650 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory was 312.1MB in the beginning and 312.0MB in the end (delta: 133.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:28:05,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.77ms. Allocated memory is still 572.5MB. Free memory was 523.3MB in the beginning and 492.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-11-30 08:28:05,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.69ms. Allocated memory is still 572.5MB. Free memory was 492.4MB in the beginning and 489.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 08:28:05,651 INFO L158 Benchmark]: Boogie Preprocessor took 24.68ms. Allocated memory is still 572.5MB. Free memory was 489.3MB in the beginning and 486.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:28:05,651 INFO L158 Benchmark]: RCFGBuilder took 535.35ms. Allocated memory is still 572.5MB. Free memory was 486.8MB in the beginning and 534.9MB in the end (delta: -48.1MB). Peak memory consumption was 32.4MB. Max. memory is 16.0GB. [2023-11-30 08:28:05,651 INFO L158 Benchmark]: TraceAbstraction took 873499.42ms. Allocated memory was 572.5MB in the beginning and 3.5GB in the end (delta: 2.9GB). Free memory was 533.9MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. [2023-11-30 08:28:05,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 137 [2023-11-30 08:28:05,657 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 362.8MB. Free memory was 312.1MB in the beginning and 312.0MB in the end (delta: 133.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 464.77ms. Allocated memory is still 572.5MB. Free memory was 523.3MB in the beginning and 492.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.69ms. Allocated memory is still 572.5MB. Free memory was 492.4MB in the beginning and 489.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.68ms. Allocated memory is still 572.5MB. Free memory was 489.3MB in the beginning and 486.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 535.35ms. Allocated memory is still 572.5MB. Free memory was 486.8MB in the beginning and 534.9MB in the end (delta: -48.1MB). Peak memory consumption was 32.4MB. Max. memory is 16.0GB. * TraceAbstraction took 873499.42ms. Allocated memory was 572.5MB in the beginning and 3.5GB in the end (delta: 2.9GB). Free memory was 533.9MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1059]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1059]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1062]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1056]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1062]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1056]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1059]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1059]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1051]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1051]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1046]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1046]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1046]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1046]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 8771 with TraceHistMax 210,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 310 locations, 23 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: 873.4s, OverallIterations: 19, TraceHistogramMax: 210, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 37.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1473 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1473 mSDsluCounter, 459 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 318 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3277 IncrementalHoareTripleChecker+Invalid, 3313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 141 mSDtfsCounter, 3277 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24857 GetRequests, 24466 SyntacticMatches, 3 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5386 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41781occurred in iteration=18, InterpolantAutomatonStates: 328, 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: 3.0s SsaConstructionTime, 66.9s SatisfiabilityAnalysisTime, 94.3s InterpolantComputationTime, 14335 NumberOfCodeBlocks, 12046 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 24695 ConstructedInterpolants, 2585 QuantifiedInterpolants, 108201 SizeOfPredicates, 87 NumberOfNonLiveVariables, 48130 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 27 InterpolantComputations, 9 PerfectInterpolantSequences, 292571/612192 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