/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_93-evilcollapse_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:13:40,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:13:40,775 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 08:13:40,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:13:40,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:13:40,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:13:40,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:13:40,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:13:40,805 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:13:40,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:13:40,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:13:40,810 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:13:40,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:13:40,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:13:40,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:13:40,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:13:40,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:13:40,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:13:40,811 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:13:40,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:13:40,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:13:40,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:13:40,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:13:40,812 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:13:40,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:13:40,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:13:40,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:13:40,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:13:40,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:13:40,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:13:40,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:13:40,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:13:40,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:13:40,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:13:40,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:13:40,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:13:40,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:13:40,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:13:40,975 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:13:40,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-30 08:13:41,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:13:42,179 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:13:42,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-30 08:13:42,191 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4bfba7b8/103a52b66d2a47f48b79b0858f948d7b/FLAGd953101fd [2023-11-30 08:13:42,200 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4bfba7b8/103a52b66d2a47f48b79b0858f948d7b [2023-11-30 08:13:42,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:13:42,203 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:13:42,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:13:42,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:13:42,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:13:42,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca4f6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42, skipping insertion in model container [2023-11-30 08:13:42,208 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,248 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:13:42,537 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,537 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,538 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,538 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:13:42,586 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:13:42,618 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,619 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,619 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,619 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 08:13:42,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:13:42,667 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:13:42,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42 WrapperNode [2023-11-30 08:13:42,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:13:42,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:13:42,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:13:42,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:13:42,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,705 INFO L138 Inliner]: procedures = 280, calls = 56, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 262 [2023-11-30 08:13:42,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:13:42,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:13:42,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:13:42,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:13:42,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:13:42,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:13:42,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:13:42,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:13:42,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (1/1) ... [2023-11-30 08:13:42,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:13:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:42,753 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 08:13:42,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:13:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 08:13:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:13:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 08:13:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:13:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:13:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 08:13:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 08:13:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:13:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 08:13:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 08:13:42,760 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 08:13:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 08:13:42,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:13:42,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:13:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:13:42,787 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 08:13:42,908 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:13:42,909 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:13:43,260 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:13:43,286 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:13:43,286 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-30 08:13:43,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:13:43 BoogieIcfgContainer [2023-11-30 08:13:43,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:13:43,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:13:43,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:13:43,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:13:43,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:13:42" (1/3) ... [2023-11-30 08:13:43,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec7f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:13:43, skipping insertion in model container [2023-11-30 08:13:43,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:13:42" (2/3) ... [2023-11-30 08:13:43,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec7f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:13:43, skipping insertion in model container [2023-11-30 08:13:43,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:13:43" (3/3) ... [2023-11-30 08:13:43,292 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2023-11-30 08:13:43,304 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:13:43,304 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-30 08:13:43,304 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:13:43,358 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 08:13:43,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 301 transitions, 609 flow [2023-11-30 08:13:43,471 INFO L124 PetriNetUnfolderBase]: 30/320 cut-off events. [2023-11-30 08:13:43,471 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 08:13:43,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 320 events. 30/320 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 811 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 170. Up to 4 conditions per place. [2023-11-30 08:13:43,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 301 transitions, 609 flow [2023-11-30 08:13:43,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 298 transitions, 603 flow [2023-11-30 08:13:43,487 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:13:43,495 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;@1a239b19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:13:43,495 INFO L363 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-30 08:13:43,513 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:13:43,513 INFO L124 PetriNetUnfolderBase]: 2/63 cut-off events. [2023-11-30 08:13:43,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 08:13:43,513 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:43,513 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] [2023-11-30 08:13:43,514 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:43,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:43,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2031206547, now seen corresponding path program 1 times [2023-11-30 08:13:43,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:43,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803732687] [2023-11-30 08:13:43,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:43,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:43,607 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180547031] [2023-11-30 08:13:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:43,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:43,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:43,610 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 08:13:43,636 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 08:13:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:43,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:43,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:43,726 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 08:13:43,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:43,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:43,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803732687] [2023-11-30 08:13:43,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:43,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180547031] [2023-11-30 08:13:43,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180547031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:43,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:43,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 08:13:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733011452] [2023-11-30 08:13:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:43,734 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:13:43,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:43,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:13:43,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:13:43,773 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 301 [2023-11-30 08:13:43,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 298 transitions, 603 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 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 08:13:43,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:43,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 301 [2023-11-30 08:13:43,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:43,908 INFO L124 PetriNetUnfolderBase]: 18/439 cut-off events. [2023-11-30 08:13:43,908 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-30 08:13:43,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 439 events. 18/439 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1429 event pairs, 8 based on Foata normal form. 49/444 useless extension candidates. Maximal degree in co-relation 250. Up to 45 conditions per place. [2023-11-30 08:13:43,915 INFO L140 encePairwiseOnDemand]: 275/301 looper letters, 33 selfloop transitions, 2 changer transitions 2/283 dead transitions. [2023-11-30 08:13:43,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 283 transitions, 643 flow [2023-11-30 08:13:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:13:43,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:13:43,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2023-11-30 08:13:43,932 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9080841638981174 [2023-11-30 08:13:43,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2023-11-30 08:13:43,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2023-11-30 08:13:43,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:43,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2023-11-30 08:13:43,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 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 08:13:43,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 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 08:13:43,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 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 08:13:43,951 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, -1 predicate places. [2023-11-30 08:13:43,951 INFO L500 AbstractCegarLoop]: Abstraction has has 273 places, 283 transitions, 643 flow [2023-11-30 08:13:43,952 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 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 08:13:43,952 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:43,952 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] [2023-11-30 08:13:43,960 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 08:13:44,156 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 08:13:44,157 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:44,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2074526566, now seen corresponding path program 1 times [2023-11-30 08:13:44,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:44,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482714219] [2023-11-30 08:13:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:44,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:44,300 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 08:13:44,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:44,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482714219] [2023-11-30 08:13:44,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482714219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:44,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:44,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:44,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251448951] [2023-11-30 08:13:44,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:44,302 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:13:44,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:44,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:13:44,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:13:44,304 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 301 [2023-11-30 08:13:44,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 283 transitions, 643 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 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 08:13:44,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:44,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 301 [2023-11-30 08:13:44,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:44,411 INFO L124 PetriNetUnfolderBase]: 18/523 cut-off events. [2023-11-30 08:13:44,411 INFO L125 PetriNetUnfolderBase]: For 29/32 co-relation queries the response was YES. [2023-11-30 08:13:44,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 523 events. 18/523 cut-off events. For 29/32 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1697 event pairs, 8 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 376. Up to 51 conditions per place. [2023-11-30 08:13:44,414 INFO L140 encePairwiseOnDemand]: 296/301 looper letters, 33 selfloop transitions, 2 changer transitions 2/292 dead transitions. [2023-11-30 08:13:44,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 292 transitions, 743 flow [2023-11-30 08:13:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:13:44,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:13:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2023-11-30 08:13:44,416 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8859357696566998 [2023-11-30 08:13:44,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 800 transitions. [2023-11-30 08:13:44,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 800 transitions. [2023-11-30 08:13:44,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:44,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 800 transitions. [2023-11-30 08:13:44,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.6666666666667) internal successors, (800), 3 states have internal predecessors, (800), 0 states have call successors, (0), 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 08:13:44,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 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 08:13:44,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 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 08:13:44,420 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 1 predicate places. [2023-11-30 08:13:44,420 INFO L500 AbstractCegarLoop]: Abstraction has has 275 places, 292 transitions, 743 flow [2023-11-30 08:13:44,421 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 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 08:13:44,421 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:44,421 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 08:13:44,422 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 08:13:44,422 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:44,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:44,424 INFO L85 PathProgramCache]: Analyzing trace with hash -55672701, now seen corresponding path program 1 times [2023-11-30 08:13:44,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:44,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494547408] [2023-11-30 08:13:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:44,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:44,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:44,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272172966] [2023-11-30 08:13:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:44,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:44,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:44,481 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 08:13:44,504 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 08:13:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:44,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:44,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:44,682 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 08:13:44,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:44,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494547408] [2023-11-30 08:13:44,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272172966] [2023-11-30 08:13:44,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272172966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:44,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:44,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:44,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782402736] [2023-11-30 08:13:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:44,684 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:44,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:44,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:44,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:44,686 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 301 [2023-11-30 08:13:44,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 292 transitions, 743 flow. Second operand has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 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 08:13:44,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:44,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 301 [2023-11-30 08:13:44,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:44,784 INFO L124 PetriNetUnfolderBase]: 18/519 cut-off events. [2023-11-30 08:13:44,785 INFO L125 PetriNetUnfolderBase]: For 82/87 co-relation queries the response was YES. [2023-11-30 08:13:44,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 519 events. 18/519 cut-off events. For 82/87 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1679 event pairs, 8 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 420. Up to 51 conditions per place. [2023-11-30 08:13:44,786 INFO L140 encePairwiseOnDemand]: 296/301 looper letters, 34 selfloop transitions, 5 changer transitions 2/291 dead transitions. [2023-11-30 08:13:44,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 291 transitions, 819 flow [2023-11-30 08:13:44,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:13:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:13:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1032 transitions. [2023-11-30 08:13:44,789 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2023-11-30 08:13:44,789 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1032 transitions. [2023-11-30 08:13:44,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1032 transitions. [2023-11-30 08:13:44,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:44,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1032 transitions. [2023-11-30 08:13:44,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 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 08:13:44,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 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 08:13:44,793 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 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 08:13:44,794 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 3 predicate places. [2023-11-30 08:13:44,794 INFO L500 AbstractCegarLoop]: Abstraction has has 277 places, 291 transitions, 819 flow [2023-11-30 08:13:44,795 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 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 08:13:44,795 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:44,795 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, 1] [2023-11-30 08:13:44,807 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 08:13:45,000 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 08:13:45,001 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:45,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1725853013, now seen corresponding path program 1 times [2023-11-30 08:13:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:45,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314634653] [2023-11-30 08:13:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:45,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:45,027 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:45,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90714275] [2023-11-30 08:13:45,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:45,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:45,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:45,032 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 08:13:45,056 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 08:13:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:45,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:45,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:45,205 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 08:13:45,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:45,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314634653] [2023-11-30 08:13:45,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90714275] [2023-11-30 08:13:45,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90714275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:45,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:45,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:45,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127271730] [2023-11-30 08:13:45,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:45,206 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:45,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:45,208 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 301 [2023-11-30 08:13:45,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 291 transitions, 819 flow. Second operand has 4 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 0 states have call successors, (0), 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 08:13:45,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:45,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 301 [2023-11-30 08:13:45,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:45,292 INFO L124 PetriNetUnfolderBase]: 18/519 cut-off events. [2023-11-30 08:13:45,292 INFO L125 PetriNetUnfolderBase]: For 163/170 co-relation queries the response was YES. [2023-11-30 08:13:45,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 519 events. 18/519 cut-off events. For 163/170 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1690 event pairs, 8 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 468. Up to 59 conditions per place. [2023-11-30 08:13:45,294 INFO L140 encePairwiseOnDemand]: 296/301 looper letters, 38 selfloop transitions, 4 changer transitions 2/294 dead transitions. [2023-11-30 08:13:45,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 294 transitions, 915 flow [2023-11-30 08:13:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:13:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:13:45,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1292 transitions. [2023-11-30 08:13:45,296 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8584717607973422 [2023-11-30 08:13:45,296 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1292 transitions. [2023-11-30 08:13:45,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1292 transitions. [2023-11-30 08:13:45,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:45,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1292 transitions. [2023-11-30 08:13:45,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 258.4) internal successors, (1292), 5 states have internal predecessors, (1292), 0 states have call successors, (0), 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 08:13:45,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 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 08:13:45,302 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 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 08:13:45,302 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 7 predicate places. [2023-11-30 08:13:45,302 INFO L500 AbstractCegarLoop]: Abstraction has has 281 places, 294 transitions, 915 flow [2023-11-30 08:13:45,303 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 0 states have call successors, (0), 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 08:13:45,303 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:45,303 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:45,311 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 08:13:45,508 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 08:13:45,509 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:45,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:45,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2066339539, now seen corresponding path program 1 times [2023-11-30 08:13:45,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:45,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207019789] [2023-11-30 08:13:45,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:45,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:45,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:45,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440822110] [2023-11-30 08:13:45,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:45,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:45,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:45,553 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 08:13:45,556 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 08:13:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:45,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:13:45,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:45,724 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 08:13:45,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:45,774 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 08:13:45,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:45,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207019789] [2023-11-30 08:13:45,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:45,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440822110] [2023-11-30 08:13:45,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440822110] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:45,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:45,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-30 08:13:45,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424528772] [2023-11-30 08:13:45,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:45,779 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:13:45,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:45,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:13:45,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:13:45,782 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 301 [2023-11-30 08:13:45,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 294 transitions, 915 flow. Second operand has 8 states, 8 states have (on average 254.0) internal successors, (2032), 8 states have internal predecessors, (2032), 0 states have call successors, (0), 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 08:13:45,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:45,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 301 [2023-11-30 08:13:45,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:45,911 INFO L124 PetriNetUnfolderBase]: 18/605 cut-off events. [2023-11-30 08:13:45,911 INFO L125 PetriNetUnfolderBase]: For 284/293 co-relation queries the response was YES. [2023-11-30 08:13:45,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 605 events. 18/605 cut-off events. For 284/293 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1494 event pairs, 8 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 694. Up to 81 conditions per place. [2023-11-30 08:13:45,913 INFO L140 encePairwiseOnDemand]: 294/301 looper letters, 48 selfloop transitions, 9 changer transitions 2/309 dead transitions. [2023-11-30 08:13:45,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 309 transitions, 1159 flow [2023-11-30 08:13:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 08:13:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 08:13:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2310 transitions. [2023-11-30 08:13:45,916 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8527131782945736 [2023-11-30 08:13:45,916 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2310 transitions. [2023-11-30 08:13:45,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2310 transitions. [2023-11-30 08:13:45,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:45,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2310 transitions. [2023-11-30 08:13:45,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 256.6666666666667) internal successors, (2310), 9 states have internal predecessors, (2310), 0 states have call successors, (0), 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 08:13:45,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 301.0) internal successors, (3010), 10 states have internal predecessors, (3010), 0 states have call successors, (0), 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 08:13:45,924 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 301.0) internal successors, (3010), 10 states have internal predecessors, (3010), 0 states have call successors, (0), 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 08:13:45,925 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 15 predicate places. [2023-11-30 08:13:45,925 INFO L500 AbstractCegarLoop]: Abstraction has has 289 places, 309 transitions, 1159 flow [2023-11-30 08:13:45,926 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 254.0) internal successors, (2032), 8 states have internal predecessors, (2032), 0 states have call successors, (0), 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 08:13:45,926 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:45,926 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:45,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:46,131 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 08:13:46,131 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:46,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1930500811, now seen corresponding path program 1 times [2023-11-30 08:13:46,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:46,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101844808] [2023-11-30 08:13:46,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:46,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:46,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:46,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561742754] [2023-11-30 08:13:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:46,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:46,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:46,156 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 08:13:46,180 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 08:13:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:46,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:13:46,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:46,439 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 08:13:46,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:46,569 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 08:13:46,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:46,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101844808] [2023-11-30 08:13:46,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:46,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561742754] [2023-11-30 08:13:46,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561742754] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:46,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:46,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-30 08:13:46,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465672038] [2023-11-30 08:13:46,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:46,571 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-30 08:13:46,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-30 08:13:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-30 08:13:46,574 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 301 [2023-11-30 08:13:46,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 309 transitions, 1159 flow. Second operand has 14 states, 14 states have (on average 254.78571428571428) internal successors, (3567), 14 states have internal predecessors, (3567), 0 states have call successors, (0), 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 08:13:46,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:46,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 301 [2023-11-30 08:13:46,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:46,764 INFO L124 PetriNetUnfolderBase]: 20/691 cut-off events. [2023-11-30 08:13:46,764 INFO L125 PetriNetUnfolderBase]: For 449/460 co-relation queries the response was YES. [2023-11-30 08:13:46,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1359 conditions, 691 events. 20/691 cut-off events. For 449/460 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1735 event pairs, 8 based on Foata normal form. 0/645 useless extension candidates. Maximal degree in co-relation 966. Up to 103 conditions per place. [2023-11-30 08:13:46,767 INFO L140 encePairwiseOnDemand]: 294/301 looper letters, 56 selfloop transitions, 16 changer transitions 2/324 dead transitions. [2023-11-30 08:13:46,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 324 transitions, 1465 flow [2023-11-30 08:13:46,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 08:13:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 08:13:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3827 transitions. [2023-11-30 08:13:46,772 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8476190476190476 [2023-11-30 08:13:46,773 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3827 transitions. [2023-11-30 08:13:46,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3827 transitions. [2023-11-30 08:13:46,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:46,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3827 transitions. [2023-11-30 08:13:46,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 255.13333333333333) internal successors, (3827), 15 states have internal predecessors, (3827), 0 states have call successors, (0), 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 08:13:46,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 301.0) internal successors, (4816), 16 states have internal predecessors, (4816), 0 states have call successors, (0), 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 08:13:46,785 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 301.0) internal successors, (4816), 16 states have internal predecessors, (4816), 0 states have call successors, (0), 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 08:13:46,785 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 28 predicate places. [2023-11-30 08:13:46,786 INFO L500 AbstractCegarLoop]: Abstraction has has 302 places, 324 transitions, 1465 flow [2023-11-30 08:13:46,787 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 254.78571428571428) internal successors, (3567), 14 states have internal predecessors, (3567), 0 states have call successors, (0), 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 08:13:46,787 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:46,787 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, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:46,796 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 08:13:46,996 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 08:13:46,996 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:46,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -607708851, now seen corresponding path program 2 times [2023-11-30 08:13:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:46,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299216630] [2023-11-30 08:13:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:46,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:47,021 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:47,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823893984] [2023-11-30 08:13:47,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:47,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:47,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:47,022 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 08:13:47,025 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 08:13:47,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:47,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:47,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:47,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:47,266 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 08:13:47,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:47,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:47,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299216630] [2023-11-30 08:13:47,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:47,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823893984] [2023-11-30 08:13:47,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823893984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:47,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:47,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:47,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553886185] [2023-11-30 08:13:47,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:47,268 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:47,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:47,269 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 301 [2023-11-30 08:13:47,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 324 transitions, 1465 flow. Second operand has 4 states, 4 states have (on average 250.75) internal successors, (1003), 4 states have internal predecessors, (1003), 0 states have call successors, (0), 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 08:13:47,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:47,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 301 [2023-11-30 08:13:47,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:47,390 INFO L124 PetriNetUnfolderBase]: 20/689 cut-off events. [2023-11-30 08:13:47,391 INFO L125 PetriNetUnfolderBase]: For 605/618 co-relation queries the response was YES. [2023-11-30 08:13:47,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1446 conditions, 689 events. 20/689 cut-off events. For 605/618 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1722 event pairs, 8 based on Foata normal form. 0/645 useless extension candidates. Maximal degree in co-relation 1024. Up to 103 conditions per place. [2023-11-30 08:13:47,393 INFO L140 encePairwiseOnDemand]: 296/301 looper letters, 56 selfloop transitions, 5 changer transitions 2/323 dead transitions. [2023-11-30 08:13:47,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 323 transitions, 1585 flow [2023-11-30 08:13:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:13:47,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:13:47,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1023 transitions. [2023-11-30 08:13:47,395 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8496677740863787 [2023-11-30 08:13:47,395 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1023 transitions. [2023-11-30 08:13:47,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1023 transitions. [2023-11-30 08:13:47,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:47,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1023 transitions. [2023-11-30 08:13:47,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 255.75) internal successors, (1023), 4 states have internal predecessors, (1023), 0 states have call successors, (0), 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 08:13:47,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 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 08:13:47,399 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 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 08:13:47,399 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 30 predicate places. [2023-11-30 08:13:47,399 INFO L500 AbstractCegarLoop]: Abstraction has has 304 places, 323 transitions, 1585 flow [2023-11-30 08:13:47,400 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 250.75) internal successors, (1003), 4 states have internal predecessors, (1003), 0 states have call successors, (0), 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 08:13:47,400 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:47,400 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:13:47,405 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 08:13:47,605 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 08:13:47,605 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:47,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1659104651, now seen corresponding path program 1 times [2023-11-30 08:13:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:47,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336573168] [2023-11-30 08:13:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:47,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:47,654 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:47,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917419694] [2023-11-30 08:13:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:47,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:47,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:47,655 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 08:13:47,671 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 08:13:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:47,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 08:13:47,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:47,968 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 08:13:47,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:48,107 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 08:13:48,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336573168] [2023-11-30 08:13:48,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917419694] [2023-11-30 08:13:48,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917419694] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:48,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:48,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-30 08:13:48,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573648964] [2023-11-30 08:13:48,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:48,108 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 08:13:48,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 08:13:48,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-30 08:13:48,113 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 301 [2023-11-30 08:13:48,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 323 transitions, 1585 flow. Second operand has 16 states, 16 states have (on average 254.75) internal successors, (4076), 16 states have internal predecessors, (4076), 0 states have call successors, (0), 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 08:13:48,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:48,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 301 [2023-11-30 08:13:48,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:48,430 INFO L124 PetriNetUnfolderBase]: 18/937 cut-off events. [2023-11-30 08:13:48,431 INFO L125 PetriNetUnfolderBase]: For 914/929 co-relation queries the response was YES. [2023-11-30 08:13:48,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2193 conditions, 937 events. 18/937 cut-off events. For 914/929 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1493 event pairs, 8 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 1742. Up to 159 conditions per place. [2023-11-30 08:13:48,434 INFO L140 encePairwiseOnDemand]: 295/301 looper letters, 91 selfloop transitions, 21 changer transitions 2/363 dead transitions. [2023-11-30 08:13:48,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 363 transitions, 2367 flow [2023-11-30 08:13:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 08:13:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 08:13:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5366 transitions. [2023-11-30 08:13:48,443 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8489163107103307 [2023-11-30 08:13:48,443 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5366 transitions. [2023-11-30 08:13:48,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5366 transitions. [2023-11-30 08:13:48,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:48,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5366 transitions. [2023-11-30 08:13:48,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 255.52380952380952) internal successors, (5366), 21 states have internal predecessors, (5366), 0 states have call successors, (0), 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 08:13:48,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 301.0) internal successors, (6622), 22 states have internal predecessors, (6622), 0 states have call successors, (0), 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 08:13:48,460 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 301.0) internal successors, (6622), 22 states have internal predecessors, (6622), 0 states have call successors, (0), 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 08:13:48,461 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 50 predicate places. [2023-11-30 08:13:48,462 INFO L500 AbstractCegarLoop]: Abstraction has has 324 places, 363 transitions, 2367 flow [2023-11-30 08:13:48,463 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 254.75) internal successors, (4076), 16 states have internal predecessors, (4076), 0 states have call successors, (0), 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 08:13:48,463 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:48,463 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] [2023-11-30 08:13:48,478 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 08:13:48,669 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 08:13:48,670 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:48,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1632923083, now seen corresponding path program 2 times [2023-11-30 08:13:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:48,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609912094] [2023-11-30 08:13:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:48,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:48,708 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:48,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906206254] [2023-11-30 08:13:48,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:48,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:48,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:48,709 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 08:13:48,710 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 08:13:48,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:48,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:48,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:48,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:49,147 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 08:13:49,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:49,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:49,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609912094] [2023-11-30 08:13:49,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:49,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906206254] [2023-11-30 08:13:49,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906206254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:49,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:49,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:49,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2459608] [2023-11-30 08:13:49,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:49,148 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:49,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:49,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:49,149 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 301 [2023-11-30 08:13:49,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 363 transitions, 2367 flow. Second operand has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 0 states have call successors, (0), 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 08:13:49,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:49,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 301 [2023-11-30 08:13:49,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:49,308 INFO L124 PetriNetUnfolderBase]: 18/937 cut-off events. [2023-11-30 08:13:49,308 INFO L125 PetriNetUnfolderBase]: For 1159/1176 co-relation queries the response was YES. [2023-11-30 08:13:49,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2312 conditions, 937 events. 18/937 cut-off events. For 1159/1176 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1500 event pairs, 8 based on Foata normal form. 0/890 useless extension candidates. Maximal degree in co-relation 1832. Up to 159 conditions per place. [2023-11-30 08:13:49,311 INFO L140 encePairwiseOnDemand]: 296/301 looper letters, 84 selfloop transitions, 4 changer transitions 2/366 dead transitions. [2023-11-30 08:13:49,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 366 transitions, 2555 flow [2023-11-30 08:13:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:13:49,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:13:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1283 transitions. [2023-11-30 08:13:49,313 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8524916943521594 [2023-11-30 08:13:49,313 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1283 transitions. [2023-11-30 08:13:49,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1283 transitions. [2023-11-30 08:13:49,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:49,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1283 transitions. [2023-11-30 08:13:49,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 256.6) internal successors, (1283), 5 states have internal predecessors, (1283), 0 states have call successors, (0), 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 08:13:49,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 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 08:13:49,317 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 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 08:13:49,318 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 54 predicate places. [2023-11-30 08:13:49,318 INFO L500 AbstractCegarLoop]: Abstraction has has 328 places, 366 transitions, 2555 flow [2023-11-30 08:13:49,318 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 0 states have call successors, (0), 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 08:13:49,318 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:49,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:49,326 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 08:13:49,523 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 08:13:49,524 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:49,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:49,524 INFO L85 PathProgramCache]: Analyzing trace with hash 799362072, now seen corresponding path program 1 times [2023-11-30 08:13:49,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:49,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609280443] [2023-11-30 08:13:49,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:49,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:49,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:49,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689893539] [2023-11-30 08:13:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:49,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:49,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:49,566 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 08:13:49,588 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 08:13:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:49,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 08:13:49,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:50,268 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 08:13:50,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:50,672 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 08:13:50,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:50,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609280443] [2023-11-30 08:13:50,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:50,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689893539] [2023-11-30 08:13:50,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689893539] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:50,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:50,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-11-30 08:13:50,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710607250] [2023-11-30 08:13:50,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:50,673 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-30 08:13:50,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:50,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-30 08:13:50,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-11-30 08:13:50,678 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 301 [2023-11-30 08:13:50,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 366 transitions, 2555 flow. Second operand has 32 states, 32 states have (on average 255.15625) internal successors, (8165), 32 states have internal predecessors, (8165), 0 states have call successors, (0), 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 08:13:50,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:50,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 301 [2023-11-30 08:13:50,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:51,537 INFO L124 PetriNetUnfolderBase]: 18/1609 cut-off events. [2023-11-30 08:13:51,537 INFO L125 PetriNetUnfolderBase]: For 1888/1907 co-relation queries the response was YES. [2023-11-30 08:13:51,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4473 conditions, 1609 events. 18/1609 cut-off events. For 1888/1907 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1523 event pairs, 8 based on Foata normal form. 0/1546 useless extension candidates. Maximal degree in co-relation 3964. Up to 319 conditions per place. [2023-11-30 08:13:51,543 INFO L140 encePairwiseOnDemand]: 295/301 looper letters, 179 selfloop transitions, 45 changer transitions 2/478 dead transitions. [2023-11-30 08:13:51,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 478 transitions, 4907 flow [2023-11-30 08:13:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-30 08:13:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-30 08:13:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 11482 transitions. [2023-11-30 08:13:51,556 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8476928755998523 [2023-11-30 08:13:51,556 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 11482 transitions. [2023-11-30 08:13:51,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 11482 transitions. [2023-11-30 08:13:51,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:51,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 11482 transitions. [2023-11-30 08:13:51,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 255.15555555555557) internal successors, (11482), 45 states have internal predecessors, (11482), 0 states have call successors, (0), 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 08:13:51,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 301.0) internal successors, (13846), 46 states have internal predecessors, (13846), 0 states have call successors, (0), 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 08:13:51,592 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 301.0) internal successors, (13846), 46 states have internal predecessors, (13846), 0 states have call successors, (0), 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 08:13:51,593 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 98 predicate places. [2023-11-30 08:13:51,593 INFO L500 AbstractCegarLoop]: Abstraction has has 372 places, 478 transitions, 4907 flow [2023-11-30 08:13:51,595 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 255.15625) internal successors, (8165), 32 states have internal predecessors, (8165), 0 states have call successors, (0), 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 08:13:51,595 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:51,596 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, 1, 1, 1, 1, 1, 1, 1, 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 08:13:51,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-30 08:13:51,803 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 08:13:51,803 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:51,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:51,804 INFO L85 PathProgramCache]: Analyzing trace with hash -747885672, now seen corresponding path program 2 times [2023-11-30 08:13:51,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:51,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214935231] [2023-11-30 08:13:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:51,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:51,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:51,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124208641] [2023-11-30 08:13:51,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:51,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:51,884 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 08:13:51,889 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 08:13:52,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:52,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:52,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:52,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:52,326 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 08:13:52,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:52,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:52,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214935231] [2023-11-30 08:13:52,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:52,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124208641] [2023-11-30 08:13:52,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124208641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:52,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:52,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:52,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912881419] [2023-11-30 08:13:52,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:52,328 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:52,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:52,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:52,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:52,329 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 301 [2023-11-30 08:13:52,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 478 transitions, 4907 flow. Second operand has 4 states, 4 states have (on average 256.75) internal successors, (1027), 4 states have internal predecessors, (1027), 0 states have call successors, (0), 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 08:13:52,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:52,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 301 [2023-11-30 08:13:52,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:52,732 INFO L124 PetriNetUnfolderBase]: 95/1801 cut-off events. [2023-11-30 08:13:52,732 INFO L125 PetriNetUnfolderBase]: For 7050/7181 co-relation queries the response was YES. [2023-11-30 08:13:52,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5660 conditions, 1801 events. 95/1801 cut-off events. For 7050/7181 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3176 event pairs, 32 based on Foata normal form. 2/1679 useless extension candidates. Maximal degree in co-relation 3971. Up to 398 conditions per place. [2023-11-30 08:13:52,740 INFO L140 encePairwiseOnDemand]: 296/301 looper letters, 35 selfloop transitions, 4 changer transitions 2/493 dead transitions. [2023-11-30 08:13:52,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 493 transitions, 5335 flow [2023-11-30 08:13:52,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:13:52,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:13:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1060 transitions. [2023-11-30 08:13:52,742 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8803986710963455 [2023-11-30 08:13:52,742 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1060 transitions. [2023-11-30 08:13:52,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1060 transitions. [2023-11-30 08:13:52,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:52,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1060 transitions. [2023-11-30 08:13:52,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 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 08:13:52,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 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 08:13:52,745 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 0 states have call successors, (0), 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 08:13:52,745 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 100 predicate places. [2023-11-30 08:13:52,746 INFO L500 AbstractCegarLoop]: Abstraction has has 374 places, 493 transitions, 5335 flow [2023-11-30 08:13:52,746 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 256.75) internal successors, (1027), 4 states have internal predecessors, (1027), 0 states have call successors, (0), 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 08:13:52,746 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:52,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:52,752 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 08:13:52,952 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 08:13:52,952 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:52,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:52,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1709618703, now seen corresponding path program 1 times [2023-11-30 08:13:52,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:52,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127754324] [2023-11-30 08:13:52,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:52,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:53,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:53,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515884776] [2023-11-30 08:13:53,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:53,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:53,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:53,036 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 08:13:53,039 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 08:13:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:13:53,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 2709 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-30 08:13:53,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:54,463 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 08:13:54,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:13:55,469 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 08:13:55,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:55,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127754324] [2023-11-30 08:13:55,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:55,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515884776] [2023-11-30 08:13:55,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515884776] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:13:55,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:13:55,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 61 [2023-11-30 08:13:55,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010763737] [2023-11-30 08:13:55,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:13:55,470 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-11-30 08:13:55,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:55,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-11-30 08:13:55,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=960, Invalid=2700, Unknown=0, NotChecked=0, Total=3660 [2023-11-30 08:13:55,478 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 301 [2023-11-30 08:13:55,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 493 transitions, 5335 flow. Second operand has 61 states, 61 states have (on average 255.39344262295083) internal successors, (15579), 61 states have internal predecessors, (15579), 0 states have call successors, (0), 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 08:13:55,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:55,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 301 [2023-11-30 08:13:55,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:13:58,067 INFO L124 PetriNetUnfolderBase]: 128/3226 cut-off events. [2023-11-30 08:13:58,068 INFO L125 PetriNetUnfolderBase]: For 10741/10896 co-relation queries the response was YES. [2023-11-30 08:13:58,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10622 conditions, 3226 events. 128/3226 cut-off events. For 10741/10896 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4148 event pairs, 53 based on Foata normal form. 0/3028 useless extension candidates. Maximal degree in co-relation 8299. Up to 728 conditions per place. [2023-11-30 08:13:58,090 INFO L140 encePairwiseOnDemand]: 295/301 looper letters, 360 selfloop transitions, 90 changer transitions 2/703 dead transitions. [2023-11-30 08:13:58,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 703 transitions, 10225 flow [2023-11-30 08:13:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-30 08:13:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2023-11-30 08:13:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 22949 transitions. [2023-11-30 08:13:58,105 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8471391657438169 [2023-11-30 08:13:58,105 INFO L72 ComplementDD]: Start complementDD. Operand 90 states and 22949 transitions. [2023-11-30 08:13:58,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 22949 transitions. [2023-11-30 08:13:58,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:13:58,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 90 states and 22949 transitions. [2023-11-30 08:13:58,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 91 states, 90 states have (on average 254.98888888888888) internal successors, (22949), 90 states have internal predecessors, (22949), 0 states have call successors, (0), 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 08:13:58,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 91 states, 91 states have (on average 301.0) internal successors, (27391), 91 states have internal predecessors, (27391), 0 states have call successors, (0), 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 08:13:58,164 INFO L81 ComplementDD]: Finished complementDD. Result has 91 states, 91 states have (on average 301.0) internal successors, (27391), 91 states have internal predecessors, (27391), 0 states have call successors, (0), 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 08:13:58,165 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 189 predicate places. [2023-11-30 08:13:58,165 INFO L500 AbstractCegarLoop]: Abstraction has has 463 places, 703 transitions, 10225 flow [2023-11-30 08:13:58,168 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 255.39344262295083) internal successors, (15579), 61 states have internal predecessors, (15579), 0 states have call successors, (0), 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 08:13:58,168 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:13:58,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:58,180 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 08:13:58,376 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 08:13:58,376 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:13:58,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:13:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1428631082, now seen corresponding path program 2 times [2023-11-30 08:13:58,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:13:58,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521687859] [2023-11-30 08:13:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:13:58,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:13:58,505 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:13:58,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648056786] [2023-11-30 08:13:58,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:13:58,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:13:58,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:13:58,506 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 08:13:58,530 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 08:13:59,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:13:59,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:13:59,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:13:59,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:13:59,154 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 08:13:59,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:13:59,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:13:59,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521687859] [2023-11-30 08:13:59,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:13:59,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648056786] [2023-11-30 08:13:59,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648056786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:13:59,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:13:59,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:13:59,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338832638] [2023-11-30 08:13:59,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:13:59,156 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:13:59,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:13:59,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:13:59,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:13:59,157 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 301 [2023-11-30 08:13:59,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 703 transitions, 10225 flow. Second operand has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 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 08:13:59,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:13:59,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 301 [2023-11-30 08:13:59,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:14:00,256 INFO L124 PetriNetUnfolderBase]: 116/3232 cut-off events. [2023-11-30 08:14:00,256 INFO L125 PetriNetUnfolderBase]: For 11373/11908 co-relation queries the response was YES. [2023-11-30 08:14:00,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10659 conditions, 3232 events. 116/3232 cut-off events. For 11373/11908 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4103 event pairs, 35 based on Foata normal form. 22/3084 useless extension candidates. Maximal degree in co-relation 8276. Up to 714 conditions per place. [2023-11-30 08:14:00,265 INFO L140 encePairwiseOnDemand]: 295/301 looper letters, 52 selfloop transitions, 4 changer transitions 2/720 dead transitions. [2023-11-30 08:14:00,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 720 transitions, 10757 flow [2023-11-30 08:14:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:14:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:14:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1325 transitions. [2023-11-30 08:14:00,267 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8803986710963455 [2023-11-30 08:14:00,267 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1325 transitions. [2023-11-30 08:14:00,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1325 transitions. [2023-11-30 08:14:00,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:14:00,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1325 transitions. [2023-11-30 08:14:00,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 265.0) internal successors, (1325), 5 states have internal predecessors, (1325), 0 states have call successors, (0), 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 08:14:00,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 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 08:14:00,269 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 0 states have call successors, (0), 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 08:14:00,270 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 192 predicate places. [2023-11-30 08:14:00,270 INFO L500 AbstractCegarLoop]: Abstraction has has 466 places, 720 transitions, 10757 flow [2023-11-30 08:14:00,270 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 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 08:14:00,270 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:14:00,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:14:00,280 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 08:14:00,476 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 08:14:00,476 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:14:00,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:14:00,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1202391257, now seen corresponding path program 1 times [2023-11-30 08:14:00,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:14:00,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997045283] [2023-11-30 08:14:00,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:00,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:14:00,694 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:14:00,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900764300] [2023-11-30 08:14:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:00,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:14:00,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:14:00,696 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 08:14:00,719 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 08:14:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:14:01,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 5236 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:14:01,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:14:02,883 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 08:14:02,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:14:03,913 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 08:14:03,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:14:03,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997045283] [2023-11-30 08:14:03,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:14:03,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900764300] [2023-11-30 08:14:03,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900764300] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:14:03,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:14:03,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-30 08:14:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85464793] [2023-11-30 08:14:03,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:14:03,916 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:14:03,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:14:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:14:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:14:03,917 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 301 [2023-11-30 08:14:03,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 720 transitions, 10757 flow. Second operand has 8 states, 8 states have (on average 251.875) internal successors, (2015), 8 states have internal predecessors, (2015), 0 states have call successors, (0), 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 08:14:03,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:14:03,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 301 [2023-11-30 08:14:03,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:14:06,466 INFO L124 PetriNetUnfolderBase]: 128/4551 cut-off events. [2023-11-30 08:14:06,466 INFO L125 PetriNetUnfolderBase]: For 15926/16329 co-relation queries the response was YES. [2023-11-30 08:14:06,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15915 conditions, 4551 events. 128/4551 cut-off events. For 15926/16329 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3530 event pairs, 19 based on Foata normal form. 0/4313 useless extension candidates. Maximal degree in co-relation 13213. Up to 1050 conditions per place. [2023-11-30 08:14:06,474 INFO L140 encePairwiseOnDemand]: 294/301 looper letters, 453 selfloop transitions, 9 changer transitions 2/878 dead transitions. [2023-11-30 08:14:06,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 878 transitions, 15307 flow [2023-11-30 08:14:06,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 08:14:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 08:14:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2292 transitions. [2023-11-30 08:14:06,476 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8460686600221484 [2023-11-30 08:14:06,476 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2292 transitions. [2023-11-30 08:14:06,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2292 transitions. [2023-11-30 08:14:06,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:14:06,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2292 transitions. [2023-11-30 08:14:06,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 254.66666666666666) internal successors, (2292), 9 states have internal predecessors, (2292), 0 states have call successors, (0), 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 08:14:06,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 301.0) internal successors, (3010), 10 states have internal predecessors, (3010), 0 states have call successors, (0), 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 08:14:06,480 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 301.0) internal successors, (3010), 10 states have internal predecessors, (3010), 0 states have call successors, (0), 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 08:14:06,481 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 200 predicate places. [2023-11-30 08:14:06,481 INFO L500 AbstractCegarLoop]: Abstraction has has 474 places, 878 transitions, 15307 flow [2023-11-30 08:14:06,481 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 251.875) internal successors, (2015), 8 states have internal predecessors, (2015), 0 states have call successors, (0), 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 08:14:06,481 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:14:06,482 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:14:06,495 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 08:14:06,688 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 08:14:06,688 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:14:06,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:14:06,688 INFO L85 PathProgramCache]: Analyzing trace with hash 810060844, now seen corresponding path program 1 times [2023-11-30 08:14:06,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:14:06,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455389241] [2023-11-30 08:14:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:06,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:14:06,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:14:06,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582872959] [2023-11-30 08:14:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:06,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:14:06,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:14:06,835 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 08:14:06,840 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 08:14:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:14:11,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 5334 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 08:14:11,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:14:12,433 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 08:14:12,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:14:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:14:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455389241] [2023-11-30 08:14:12,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:14:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582872959] [2023-11-30 08:14:12,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582872959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:14:12,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:14:12,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 08:14:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781283274] [2023-11-30 08:14:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:14:12,434 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 08:14:12,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:14:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 08:14:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-30 08:14:12,436 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 301 [2023-11-30 08:14:12,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 878 transitions, 15307 flow. Second operand has 9 states, 9 states have (on average 241.33333333333334) internal successors, (2172), 9 states have internal predecessors, (2172), 0 states have call successors, (0), 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 08:14:12,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:14:12,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 301 [2023-11-30 08:14:12,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:14:15,158 INFO L124 PetriNetUnfolderBase]: 130/4472 cut-off events. [2023-11-30 08:14:15,158 INFO L125 PetriNetUnfolderBase]: For 19362/19997 co-relation queries the response was YES. [2023-11-30 08:14:15,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16278 conditions, 4472 events. 130/4472 cut-off events. For 19362/19997 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3497 event pairs, 24 based on Foata normal form. 0/4291 useless extension candidates. Maximal degree in co-relation 13459. Up to 992 conditions per place. [2023-11-30 08:14:15,168 INFO L140 encePairwiseOnDemand]: 289/301 looper letters, 643 selfloop transitions, 131 changer transitions 2/1006 dead transitions. [2023-11-30 08:14:15,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 1006 transitions, 18499 flow [2023-11-30 08:14:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 08:14:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 08:14:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2912 transitions. [2023-11-30 08:14:15,174 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8062015503875969 [2023-11-30 08:14:15,174 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2912 transitions. [2023-11-30 08:14:15,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2912 transitions. [2023-11-30 08:14:15,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:14:15,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2912 transitions. [2023-11-30 08:14:15,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 242.66666666666666) internal successors, (2912), 12 states have internal predecessors, (2912), 0 states have call successors, (0), 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 08:14:15,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 301.0) internal successors, (3913), 13 states have internal predecessors, (3913), 0 states have call successors, (0), 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 08:14:15,179 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 301.0) internal successors, (3913), 13 states have internal predecessors, (3913), 0 states have call successors, (0), 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 08:14:15,179 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 210 predicate places. [2023-11-30 08:14:15,179 INFO L500 AbstractCegarLoop]: Abstraction has has 484 places, 1006 transitions, 18499 flow [2023-11-30 08:14:15,180 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 241.33333333333334) internal successors, (2172), 9 states have internal predecessors, (2172), 0 states have call successors, (0), 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 08:14:15,180 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:14:15,180 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:14:15,240 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 08:14:15,396 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 08:14:15,396 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:14:15,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:14:15,397 INFO L85 PathProgramCache]: Analyzing trace with hash -657917018, now seen corresponding path program 1 times [2023-11-30 08:14:15,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:14:15,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707437095] [2023-11-30 08:14:15,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:15,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:14:15,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:14:15,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970499389] [2023-11-30 08:14:15,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:15,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:14:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:14:15,631 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 08:14:15,652 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 08:14:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:14:17,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 5335 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-30 08:14:17,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:14:18,983 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 08:14:18,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:14:20,057 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 08:14:20,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:14:20,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707437095] [2023-11-30 08:14:20,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:14:20,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970499389] [2023-11-30 08:14:20,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970499389] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:14:20,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:14:20,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-30 08:14:20,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131353967] [2023-11-30 08:14:20,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:14:20,059 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-30 08:14:20,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:14:20,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-30 08:14:20,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-30 08:14:20,061 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 301 [2023-11-30 08:14:20,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1006 transitions, 18499 flow. Second operand has 14 states, 14 states have (on average 242.64285714285714) internal successors, (3397), 14 states have internal predecessors, (3397), 0 states have call successors, (0), 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 08:14:20,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:14:20,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 301 [2023-11-30 08:14:20,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:14:23,357 INFO L124 PetriNetUnfolderBase]: 127/4511 cut-off events. [2023-11-30 08:14:23,357 INFO L125 PetriNetUnfolderBase]: For 22361/22984 co-relation queries the response was YES. [2023-11-30 08:14:23,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16982 conditions, 4511 events. 127/4511 cut-off events. For 22361/22984 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3883 event pairs, 33 based on Foata normal form. 0/4357 useless extension candidates. Maximal degree in co-relation 14003. Up to 959 conditions per place. [2023-11-30 08:14:23,370 INFO L140 encePairwiseOnDemand]: 286/301 looper letters, 733 selfloop transitions, 195 changer transitions 2/1160 dead transitions. [2023-11-30 08:14:23,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 1160 transitions, 23017 flow [2023-11-30 08:14:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-30 08:14:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-30 08:14:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5802 transitions. [2023-11-30 08:14:23,373 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.803156146179402 [2023-11-30 08:14:23,373 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5802 transitions. [2023-11-30 08:14:23,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5802 transitions. [2023-11-30 08:14:23,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:14:23,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5802 transitions. [2023-11-30 08:14:23,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 241.75) internal successors, (5802), 24 states have internal predecessors, (5802), 0 states have call successors, (0), 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 08:14:23,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 301.0) internal successors, (7525), 25 states have internal predecessors, (7525), 0 states have call successors, (0), 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 08:14:23,384 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 301.0) internal successors, (7525), 25 states have internal predecessors, (7525), 0 states have call successors, (0), 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 08:14:23,384 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 232 predicate places. [2023-11-30 08:14:23,385 INFO L500 AbstractCegarLoop]: Abstraction has has 506 places, 1160 transitions, 23017 flow [2023-11-30 08:14:23,385 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 242.64285714285714) internal successors, (3397), 14 states have internal predecessors, (3397), 0 states have call successors, (0), 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 08:14:23,385 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:14:23,386 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:14:23,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-30 08:14:23,600 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 08:14:23,600 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:14:23,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:14:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash -439457281, now seen corresponding path program 2 times [2023-11-30 08:14:23,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:14:23,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364729108] [2023-11-30 08:14:23,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:14:23,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:14:24,025 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:14:24,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694144851] [2023-11-30 08:14:24,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:14:24,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:14:24,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:14:24,026 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 08:14:24,037 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 08:15:22,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 08:15:22,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:15:22,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 10563 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-30 08:15:22,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:15:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 77880 backedges. 42103 proven. 47 refuted. 0 times theorem prover too weak. 35730 trivial. 0 not checked. [2023-11-30 08:15:24,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:15:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 77880 backedges. 41861 proven. 289 refuted. 0 times theorem prover too weak. 35730 trivial. 0 not checked. [2023-11-30 08:15:27,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:15:27,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364729108] [2023-11-30 08:15:27,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:15:27,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694144851] [2023-11-30 08:15:27,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694144851] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:15:27,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:15:27,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-30 08:15:27,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621468995] [2023-11-30 08:15:27,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:15:27,575 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 08:15:27,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:15:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 08:15:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-11-30 08:15:27,578 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 301 [2023-11-30 08:15:27,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 1160 transitions, 23017 flow. Second operand has 23 states, 23 states have (on average 243.1304347826087) internal successors, (5592), 23 states have internal predecessors, (5592), 0 states have call successors, (0), 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 08:15:27,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:15:27,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 301 [2023-11-30 08:15:27,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:15:33,807 INFO L124 PetriNetUnfolderBase]: 120/4378 cut-off events. [2023-11-30 08:15:33,808 INFO L125 PetriNetUnfolderBase]: For 24269/24508 co-relation queries the response was YES. [2023-11-30 08:15:33,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17397 conditions, 4378 events. 120/4378 cut-off events. For 24269/24508 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3208 event pairs, 16 based on Foata normal form. 0/4272 useless extension candidates. Maximal degree in co-relation 14524. Up to 923 conditions per place. [2023-11-30 08:15:33,817 INFO L140 encePairwiseOnDemand]: 287/301 looper letters, 648 selfloop transitions, 256 changer transitions 2/1136 dead transitions. [2023-11-30 08:15:33,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 1136 transitions, 24041 flow [2023-11-30 08:15:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-30 08:15:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-11-30 08:15:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 8923 transitions. [2023-11-30 08:15:33,822 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8012031965520338 [2023-11-30 08:15:33,823 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 8923 transitions. [2023-11-30 08:15:33,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 8923 transitions. [2023-11-30 08:15:33,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:15:33,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 8923 transitions. [2023-11-30 08:15:33,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 241.16216216216216) internal successors, (8923), 37 states have internal predecessors, (8923), 0 states have call successors, (0), 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 08:15:33,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 301.0) internal successors, (11438), 38 states have internal predecessors, (11438), 0 states have call successors, (0), 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 08:15:33,839 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 301.0) internal successors, (11438), 38 states have internal predecessors, (11438), 0 states have call successors, (0), 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 08:15:33,839 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 267 predicate places. [2023-11-30 08:15:33,839 INFO L500 AbstractCegarLoop]: Abstraction has has 541 places, 1136 transitions, 24041 flow [2023-11-30 08:15:33,840 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 243.1304347826087) internal successors, (5592), 23 states have internal predecessors, (5592), 0 states have call successors, (0), 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 08:15:33,840 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:15:33,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:15:34,064 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 08:15:34,130 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 08:15:34,130 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 08:15:34,130 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:15:34,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:15:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash -842290359, now seen corresponding path program 1 times [2023-11-30 08:15:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:15:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205497158] [2023-11-30 08:15:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:15:34,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:15:34,506 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:15:34,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1501662034] [2023-11-30 08:15:34,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:15:34,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:15:34,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:15:34,507 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 08:15:34,507 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 08:15:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:15:38,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 15357 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 08:15:38,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:15:40,820 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 08:15:40,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:15:43,564 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 08:15:43,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:15:43,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205497158] [2023-11-30 08:15:43,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:15:43,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501662034] [2023-11-30 08:15:43,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501662034] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:15:43,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:15:43,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-30 08:15:43,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011219165] [2023-11-30 08:15:43,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:15:43,568 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 08:15:43,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:15:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 08:15:43,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-30 08:15:43,570 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 301 [2023-11-30 08:15:43,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 1136 transitions, 24041 flow. Second operand has 16 states, 16 states have (on average 252.9375) internal successors, (4047), 16 states have internal predecessors, (4047), 0 states have call successors, (0), 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 08:15:43,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:15:43,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 301 [2023-11-30 08:15:43,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:15:58,318 INFO L124 PetriNetUnfolderBase]: 122/9299 cut-off events. [2023-11-30 08:15:58,318 INFO L125 PetriNetUnfolderBase]: For 39993/40561 co-relation queries the response was YES. [2023-11-30 08:15:58,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37587 conditions, 9299 events. 122/9299 cut-off events. For 39993/40561 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2684 event pairs, 8 based on Foata normal form. 0/9201 useless extension candidates. Maximal degree in co-relation 34605. Up to 1986 conditions per place. [2023-11-30 08:15:58,333 INFO L140 encePairwiseOnDemand]: 295/301 looper letters, 739 selfloop transitions, 21 changer transitions 2/1544 dead transitions. [2023-11-30 08:15:58,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 1544 transitions, 37825 flow [2023-11-30 08:15:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 08:15:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 08:15:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5312 transitions. [2023-11-30 08:15:58,336 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8403733586457839 [2023-11-30 08:15:58,336 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5312 transitions. [2023-11-30 08:15:58,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5312 transitions. [2023-11-30 08:15:58,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:15:58,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5312 transitions. [2023-11-30 08:15:58,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 252.95238095238096) internal successors, (5312), 21 states have internal predecessors, (5312), 0 states have call successors, (0), 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 08:15:58,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 301.0) internal successors, (6622), 22 states have internal predecessors, (6622), 0 states have call successors, (0), 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 08:15:58,344 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 301.0) internal successors, (6622), 22 states have internal predecessors, (6622), 0 states have call successors, (0), 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 08:15:58,344 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 287 predicate places. [2023-11-30 08:15:58,344 INFO L500 AbstractCegarLoop]: Abstraction has has 561 places, 1544 transitions, 37825 flow [2023-11-30 08:15:58,345 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 252.9375) internal successors, (4047), 16 states have internal predecessors, (4047), 0 states have call successors, (0), 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 08:15:58,345 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:15:58,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:15:58,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-30 08:15:58,560 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 08:15:58,560 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:15:58,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:15:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1267521225, now seen corresponding path program 2 times [2023-11-30 08:15:58,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:15:58,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191073939] [2023-11-30 08:15:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:15:58,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:15:59,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:15:59,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403710334] [2023-11-30 08:15:59,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:15:59,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:15:59,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:15:59,370 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 08:15:59,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-30 08:16:06,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 08:16:06,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:16:06,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 35601 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 08:16:07,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:16:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 901584 backedges. 0 proven. 776524 refuted. 0 times theorem prover too weak. 125060 trivial. 0 not checked. [2023-11-30 08:16:13,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:16:19,788 INFO L134 CoverageAnalysis]: Checked inductivity of 901584 backedges. 0 proven. 776524 refuted. 0 times theorem prover too weak. 125060 trivial. 0 not checked. [2023-11-30 08:16:19,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:16:19,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191073939] [2023-11-30 08:16:19,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:16:19,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403710334] [2023-11-30 08:16:19,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403710334] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:16:19,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:16:19,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2023-11-30 08:16:19,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691413634] [2023-11-30 08:16:19,791 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:16:19,794 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-30 08:16:19,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:16:19,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-30 08:16:19,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-11-30 08:16:19,797 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 301 [2023-11-30 08:16:19,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 1544 transitions, 37825 flow. Second operand has 21 states, 21 states have (on average 253.47619047619048) internal successors, (5323), 21 states have internal predecessors, (5323), 0 states have call successors, (0), 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 08:16:19,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:16:19,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 301 [2023-11-30 08:16:19,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:16:52,583 INFO L124 PetriNetUnfolderBase]: 122/13207 cut-off events. [2023-11-30 08:16:52,583 INFO L125 PetriNetUnfolderBase]: For 53114/53727 co-relation queries the response was YES. [2023-11-30 08:16:52,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53746 conditions, 13207 events. 122/13207 cut-off events. For 53114/53727 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3823 event pairs, 43 based on Foata normal form. 0/13081 useless extension candidates. Maximal degree in co-relation 50659. Up to 2771 conditions per place. [2023-11-30 08:16:52,608 INFO L140 encePairwiseOnDemand]: 295/301 looper letters, 1036 selfloop transitions, 30 changer transitions 2/1850 dead transitions. [2023-11-30 08:16:52,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 1850 transitions, 49767 flow [2023-11-30 08:16:52,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-30 08:16:52,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-30 08:16:52,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7579 transitions. [2023-11-30 08:16:52,612 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.839313399778516 [2023-11-30 08:16:52,612 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7579 transitions. [2023-11-30 08:16:52,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7579 transitions. [2023-11-30 08:16:52,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:16:52,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7579 transitions. [2023-11-30 08:16:52,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 252.63333333333333) internal successors, (7579), 30 states have internal predecessors, (7579), 0 states have call successors, (0), 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 08:16:52,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 301.0) internal successors, (9331), 31 states have internal predecessors, (9331), 0 states have call successors, (0), 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 08:16:52,624 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 301.0) internal successors, (9331), 31 states have internal predecessors, (9331), 0 states have call successors, (0), 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 08:16:52,624 INFO L307 CegarLoopForPetriNet]: 274 programPoint places, 316 predicate places. [2023-11-30 08:16:52,625 INFO L500 AbstractCegarLoop]: Abstraction has has 590 places, 1850 transitions, 49767 flow [2023-11-30 08:16:52,625 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 253.47619047619048) internal successors, (5323), 21 states have internal predecessors, (5323), 0 states have call successors, (0), 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 08:16:52,625 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:16:52,628 INFO L232 CegarLoopForPetriNet]: trace histogram [300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:16:52,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-30 08:16:52,844 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 08:16:52,844 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-30 08:16:52,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:16:52,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1497620635, now seen corresponding path program 3 times [2023-11-30 08:16:52,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:16:52,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830213148] [2023-11-30 08:16:52,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:16:52,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:16:54,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:16:54,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053315743] [2023-11-30 08:16:54,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 08:16:54,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:16:54,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:16:54,056 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:16:54,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process Received shutdown request... [2023-11-30 08:28:06,086 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 08:28:06,086 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 08:28:07,118 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 08:28:07,287 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forcibly destroying the process [2023-11-30 08:28:07,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-11-30 08:28:07,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 137 [2023-11-30 08:28:07,325 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2023-11-30 08:28:07,325 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-30 08:28:07,325 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2023-11-30 08:28:07,326 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2023-11-30 08:28:07,327 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2023-11-30 08:28:07,328 INFO L457 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:28:07,331 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:28:07,331 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:28:07,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:28:07 BasicIcfg [2023-11-30 08:28:07,333 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:28:07,334 INFO L158 Benchmark]: Toolchain (without parser) took 865131.14ms. Allocated memory was 576.7MB in the beginning and 3.5GB in the end (delta: 2.9GB). Free memory was 532.2MB in the beginning and 1.9GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.0GB. [2023-11-30 08:28:07,334 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 383.8MB. Free memory was 333.9MB in the beginning and 333.7MB in the end (delta: 140.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:28:07,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.73ms. Allocated memory is still 576.7MB. Free memory was 531.9MB in the beginning and 500.0MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-11-30 08:28:07,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.70ms. Allocated memory is still 576.7MB. Free memory was 500.0MB in the beginning and 496.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:28:07,334 INFO L158 Benchmark]: Boogie Preprocessor took 24.78ms. Allocated memory is still 576.7MB. Free memory was 496.9MB in the beginning and 494.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:28:07,334 INFO L158 Benchmark]: RCFGBuilder took 556.45ms. Allocated memory is still 576.7MB. Free memory was 494.1MB in the beginning and 527.8MB in the end (delta: -33.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.0GB. [2023-11-30 08:28:07,335 INFO L158 Benchmark]: TraceAbstraction took 864044.73ms. Allocated memory was 576.7MB in the beginning and 3.5GB in the end (delta: 2.9GB). Free memory was 526.8MB in the beginning and 1.9GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.0GB. [2023-11-30 08:28:07,335 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 383.8MB. Free memory was 333.9MB in the beginning and 333.7MB in the end (delta: 140.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 464.73ms. Allocated memory is still 576.7MB. Free memory was 531.9MB in the beginning and 500.0MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.70ms. Allocated memory is still 576.7MB. Free memory was 500.0MB in the beginning and 496.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.78ms. Allocated memory is still 576.7MB. Free memory was 496.9MB in the beginning and 494.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 556.45ms. Allocated memory is still 576.7MB. Free memory was 494.1MB in the beginning and 527.8MB in the end (delta: -33.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.0GB. * TraceAbstraction took 864044.73ms. Allocated memory was 576.7MB in the beginning and 3.5GB in the end (delta: 2.9GB). Free memory was 526.8MB in the beginning and 1.9GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1082]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1076]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1076]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1073]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1073]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1082]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1083]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1082]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1083]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1076]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1076]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1065]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1065]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 12544 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 368 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: 863.9s, OverallIterations: 20, TraceHistogramMax: 300, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 69.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1506 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1506 mSDsluCounter, 471 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 316 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3333 IncrementalHoareTripleChecker+Invalid, 3364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 155 mSDtfsCounter, 3333 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42898 GetRequests, 42470 SyntacticMatches, 15 SemanticMatches, 413 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5292 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49767occurred in iteration=19, InterpolantAutomatonStates: 346, 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: 4.7s SsaConstructionTime, 68.2s SatisfiabilityAnalysisTime, 33.2s InterpolantComputationTime, 23413 NumberOfCodeBlocks, 21124 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 42736 ConstructedInterpolants, 90 QuantifiedInterpolants, 128572 SizeOfPredicates, 101 NumberOfNonLiveVariables, 84161 ConjunctsInSsa, 149 ConjunctsInUnsatCore, 29 InterpolantComputations, 9 PerfectInterpolantSequences, 626568/2415360 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