/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/05-lval_ls_04-fld_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:22:31,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:22:31,943 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 07:22:31,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:22:31,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:22:31,961 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:22:31,961 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:22:31,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:22:31,962 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:22:31,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:22:31,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:22:31,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:22:31,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:22:31,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:22:31,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:22:31,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:22:31,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:22:31,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:22:31,964 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:22:31,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:22:31,965 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:22:31,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:22:31,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:22:31,966 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:22:31,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:22:31,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:22:31,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:22:31,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:22:31,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:22:31,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:22:31,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:22:31,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:22:31,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:22:31,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:22:32,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:22:32,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:22:32,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:22:32,139 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:22:32,139 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:22:32,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i [2023-11-30 07:22:33,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:22:33,194 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:22:33,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i [2023-11-30 07:22:33,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a921071/fc87dd666d9b4e4e9e66d9faf6bead72/FLAGbfdab8436 [2023-11-30 07:22:33,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a921071/fc87dd666d9b4e4e9e66d9faf6bead72 [2023-11-30 07:22:33,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:22:33,217 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:22:33,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:22:33,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:22:33,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:22:33,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7177b51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33, skipping insertion in model container [2023-11-30 07:22:33,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:22:33,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:22:33,459 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:22:33,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:22:33,533 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:22:33,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33 WrapperNode [2023-11-30 07:22:33,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:22:33,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:22:33,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:22:33,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:22:33,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,578 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-11-30 07:22:33,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:22:33,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:22:33,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:22:33,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:22:33,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:22:33,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:22:33,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:22:33,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:22:33,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (1/1) ... [2023-11-30 07:22:33,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:22:33,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:33,634 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 07:22:33,654 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 07:22:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:22:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:22:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:22:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:22:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:22:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:22:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:22:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:22:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:22:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:22:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:22:33,666 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 07:22:33,752 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:22:33,754 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:22:33,846 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:22:33,879 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:22:33,879 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 07:22:33,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:22:33 BoogieIcfgContainer [2023-11-30 07:22:33,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:22:33,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:22:33,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:22:33,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:22:33,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:22:33" (1/3) ... [2023-11-30 07:22:33,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b4b608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:22:33, skipping insertion in model container [2023-11-30 07:22:33,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:22:33" (2/3) ... [2023-11-30 07:22:33,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b4b608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:22:33, skipping insertion in model container [2023-11-30 07:22:33,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:22:33" (3/3) ... [2023-11-30 07:22:33,887 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_04-fld_nr.i [2023-11-30 07:22:33,898 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:22:33,898 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-30 07:22:33,898 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:22:33,928 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 07:22:33,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 120 flow [2023-11-30 07:22:33,998 INFO L124 PetriNetUnfolderBase]: 0/57 cut-off events. [2023-11-30 07:22:33,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:22:34,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 0/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-30 07:22:34,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 58 transitions, 120 flow [2023-11-30 07:22:34,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 57 transitions, 117 flow [2023-11-30 07:22:34,010 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:22:34,016 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;@a7b3683, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:22:34,016 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-30 07:22:34,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:22:34,024 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2023-11-30 07:22:34,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:22:34,024 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:34,025 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] [2023-11-30 07:22:34,025 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:34,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:34,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2100087827, now seen corresponding path program 1 times [2023-11-30 07:22:34,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:34,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372918546] [2023-11-30 07:22:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:34,334 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 07:22:34,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:34,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372918546] [2023-11-30 07:22:34,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372918546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:34,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:34,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:34,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720216458] [2023-11-30 07:22:34,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:34,342 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:34,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:34,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:34,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:34,361 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 58 [2023-11-30 07:22:34,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 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 07:22:34,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:34,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 58 [2023-11-30 07:22:34,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:34,469 INFO L124 PetriNetUnfolderBase]: 34/194 cut-off events. [2023-11-30 07:22:34,469 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:22:34,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 194 events. 34/194 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 775 event pairs, 9 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 255. Up to 45 conditions per place. [2023-11-30 07:22:34,474 INFO L140 encePairwiseOnDemand]: 51/58 looper letters, 19 selfloop transitions, 5 changer transitions 10/76 dead transitions. [2023-11-30 07:22:34,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 223 flow [2023-11-30 07:22:34,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:34,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2023-11-30 07:22:34,487 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8724137931034482 [2023-11-30 07:22:34,488 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 253 transitions. [2023-11-30 07:22:34,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 253 transitions. [2023-11-30 07:22:34,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:34,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 253 transitions. [2023-11-30 07:22:34,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 0 states have call successors, (0), 0 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 07:22:34,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 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 07:22:34,500 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 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 07:22:34,505 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2023-11-30 07:22:34,505 INFO L500 AbstractCegarLoop]: Abstraction has has 65 places, 76 transitions, 223 flow [2023-11-30 07:22:34,506 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 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 07:22:34,506 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:34,506 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] [2023-11-30 07:22:34,506 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:22:34,506 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:34,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:34,507 INFO L85 PathProgramCache]: Analyzing trace with hash -799774755, now seen corresponding path program 1 times [2023-11-30 07:22:34,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:34,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142621113] [2023-11-30 07:22:34,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:34,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:34,621 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 07:22:34,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:34,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142621113] [2023-11-30 07:22:34,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142621113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:34,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:34,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:34,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122499903] [2023-11-30 07:22:34,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:34,623 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:22:34,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:34,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:22:34,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:22:34,624 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 58 [2023-11-30 07:22:34,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 76 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 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 07:22:34,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:34,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 58 [2023-11-30 07:22:34,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:34,710 INFO L124 PetriNetUnfolderBase]: 61/276 cut-off events. [2023-11-30 07:22:34,710 INFO L125 PetriNetUnfolderBase]: For 41/51 co-relation queries the response was YES. [2023-11-30 07:22:34,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 276 events. 61/276 cut-off events. For 41/51 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1316 event pairs, 14 based on Foata normal form. 4/271 useless extension candidates. Maximal degree in co-relation 503. Up to 81 conditions per place. [2023-11-30 07:22:34,712 INFO L140 encePairwiseOnDemand]: 51/58 looper letters, 23 selfloop transitions, 5 changer transitions 22/91 dead transitions. [2023-11-30 07:22:34,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 91 transitions, 365 flow [2023-11-30 07:22:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:22:34,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:22:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 245 transitions. [2023-11-30 07:22:34,720 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2023-11-30 07:22:34,720 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 245 transitions. [2023-11-30 07:22:34,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 245 transitions. [2023-11-30 07:22:34,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:34,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 245 transitions. [2023-11-30 07:22:34,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 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 07:22:34,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 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 07:22:34,722 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 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 07:22:34,723 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2023-11-30 07:22:34,723 INFO L500 AbstractCegarLoop]: Abstraction has has 69 places, 91 transitions, 365 flow [2023-11-30 07:22:34,723 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 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 07:22:34,723 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:34,723 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] [2023-11-30 07:22:34,724 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:22:34,724 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:34,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:34,724 INFO L85 PathProgramCache]: Analyzing trace with hash 544247131, now seen corresponding path program 1 times [2023-11-30 07:22:34,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:34,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258636961] [2023-11-30 07:22:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:34,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:34,838 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 07:22:34,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:34,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258636961] [2023-11-30 07:22:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258636961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:34,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:34,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:22:34,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718197213] [2023-11-30 07:22:34,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:34,841 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:22:34,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:34,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:22:34,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:22:34,843 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 58 [2023-11-30 07:22:34,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 91 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:34,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:34,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 58 [2023-11-30 07:22:34,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:34,890 INFO L124 PetriNetUnfolderBase]: 5/93 cut-off events. [2023-11-30 07:22:34,892 INFO L125 PetriNetUnfolderBase]: For 51/55 co-relation queries the response was YES. [2023-11-30 07:22:34,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 93 events. 5/93 cut-off events. For 51/55 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 159 event pairs, 3 based on Foata normal form. 12/97 useless extension candidates. Maximal degree in co-relation 145. Up to 27 conditions per place. [2023-11-30 07:22:34,894 INFO L140 encePairwiseOnDemand]: 54/58 looper letters, 14 selfloop transitions, 6 changer transitions 5/69 dead transitions. [2023-11-30 07:22:34,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 281 flow [2023-11-30 07:22:34,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:22:34,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:22:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2023-11-30 07:22:34,896 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8045977011494253 [2023-11-30 07:22:34,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2023-11-30 07:22:34,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2023-11-30 07:22:34,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:34,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2023-11-30 07:22:34,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 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 07:22:34,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 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 07:22:34,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 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 07:22:34,898 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2023-11-30 07:22:34,898 INFO L500 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 281 flow [2023-11-30 07:22:34,899 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:34,899 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:34,899 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 07:22:34,899 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:22:34,899 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:34,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash -94115138, now seen corresponding path program 1 times [2023-11-30 07:22:34,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:34,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619391506] [2023-11-30 07:22:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:34,991 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 07:22:34,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:34,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619391506] [2023-11-30 07:22:34,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619391506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:34,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:34,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:22:34,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724955184] [2023-11-30 07:22:34,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:34,995 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:34,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:34,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:34,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:34,998 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 58 [2023-11-30 07:22:34,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 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 07:22:34,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:34,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 58 [2023-11-30 07:22:34,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:35,084 INFO L124 PetriNetUnfolderBase]: 9/104 cut-off events. [2023-11-30 07:22:35,085 INFO L125 PetriNetUnfolderBase]: For 58/71 co-relation queries the response was YES. [2023-11-30 07:22:35,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 104 events. 9/104 cut-off events. For 58/71 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 262 event pairs, 9 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 212. Up to 32 conditions per place. [2023-11-30 07:22:35,086 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 21 selfloop transitions, 6 changer transitions 9/71 dead transitions. [2023-11-30 07:22:35,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 71 transitions, 369 flow [2023-11-30 07:22:35,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:22:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:22:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 289 transitions. [2023-11-30 07:22:35,088 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7118226600985221 [2023-11-30 07:22:35,088 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 289 transitions. [2023-11-30 07:22:35,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 289 transitions. [2023-11-30 07:22:35,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:35,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 289 transitions. [2023-11-30 07:22:35,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 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 07:22:35,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 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 07:22:35,091 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 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 07:22:35,092 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 15 predicate places. [2023-11-30 07:22:35,092 INFO L500 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 369 flow [2023-11-30 07:22:35,093 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 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 07:22:35,093 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:35,093 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 07:22:35,093 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:22:35,093 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:35,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1057837870, now seen corresponding path program 1 times [2023-11-30 07:22:35,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:35,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96073082] [2023-11-30 07:22:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:35,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:35,179 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 07:22:35,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:35,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96073082] [2023-11-30 07:22:35,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96073082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:35,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:35,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:22:35,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735603898] [2023-11-30 07:22:35,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:35,180 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:35,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:35,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:35,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:35,181 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 58 [2023-11-30 07:22:35,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 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 07:22:35,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:35,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 58 [2023-11-30 07:22:35,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:35,257 INFO L124 PetriNetUnfolderBase]: 8/102 cut-off events. [2023-11-30 07:22:35,257 INFO L125 PetriNetUnfolderBase]: For 102/127 co-relation queries the response was YES. [2023-11-30 07:22:35,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 102 events. 8/102 cut-off events. For 102/127 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 247 event pairs, 5 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 252. Up to 31 conditions per place. [2023-11-30 07:22:35,258 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 21 selfloop transitions, 6 changer transitions 9/71 dead transitions. [2023-11-30 07:22:35,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 71 transitions, 441 flow [2023-11-30 07:22:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:22:35,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:22:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 289 transitions. [2023-11-30 07:22:35,259 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7118226600985221 [2023-11-30 07:22:35,259 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 289 transitions. [2023-11-30 07:22:35,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 289 transitions. [2023-11-30 07:22:35,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:35,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 289 transitions. [2023-11-30 07:22:35,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 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 07:22:35,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 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 07:22:35,261 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 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 07:22:35,262 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 20 predicate places. [2023-11-30 07:22:35,263 INFO L500 AbstractCegarLoop]: Abstraction has has 81 places, 71 transitions, 441 flow [2023-11-30 07:22:35,263 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 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 07:22:35,263 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:35,263 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] [2023-11-30 07:22:35,263 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:22:35,263 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:35,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash 944035220, now seen corresponding path program 1 times [2023-11-30 07:22:35,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:35,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509702700] [2023-11-30 07:22:35,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:35,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:35,338 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 07:22:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509702700] [2023-11-30 07:22:35,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509702700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:35,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:35,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:22:35,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550796771] [2023-11-30 07:22:35,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:35,339 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:35,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:35,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:35,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:35,340 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 58 [2023-11-30 07:22:35,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 71 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 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 07:22:35,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:35,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 58 [2023-11-30 07:22:35,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:35,403 INFO L124 PetriNetUnfolderBase]: 8/101 cut-off events. [2023-11-30 07:22:35,403 INFO L125 PetriNetUnfolderBase]: For 162/201 co-relation queries the response was YES. [2023-11-30 07:22:35,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 101 events. 8/101 cut-off events. For 162/201 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 239 event pairs, 5 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 295. Up to 31 conditions per place. [2023-11-30 07:22:35,405 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 12 selfloop transitions, 4 changer transitions 22/70 dead transitions. [2023-11-30 07:22:35,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 70 transitions, 503 flow [2023-11-30 07:22:35,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:22:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:22:35,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2023-11-30 07:22:35,406 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6819923371647509 [2023-11-30 07:22:35,407 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2023-11-30 07:22:35,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2023-11-30 07:22:35,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:35,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2023-11-30 07:22:35,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 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 07:22:35,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 0 states have call successors, (0), 0 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 07:22:35,409 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 0 states have call successors, (0), 0 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 07:22:35,411 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2023-11-30 07:22:35,411 INFO L500 AbstractCegarLoop]: Abstraction has has 88 places, 70 transitions, 503 flow [2023-11-30 07:22:35,411 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 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 07:22:35,411 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:35,411 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] [2023-11-30 07:22:35,411 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:22:35,411 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:35,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:35,412 INFO L85 PathProgramCache]: Analyzing trace with hash -698293359, now seen corresponding path program 1 times [2023-11-30 07:22:35,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:35,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372480556] [2023-11-30 07:22:35,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:35,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:35,476 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 07:22:35,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372480556] [2023-11-30 07:22:35,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372480556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:35,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:35,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:22:35,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559026808] [2023-11-30 07:22:35,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:35,480 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:22:35,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:35,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:22:35,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:22:35,481 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 58 [2023-11-30 07:22:35,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 70 transitions, 503 flow. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 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 07:22:35,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:35,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 58 [2023-11-30 07:22:35,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:35,538 INFO L124 PetriNetUnfolderBase]: 7/98 cut-off events. [2023-11-30 07:22:35,538 INFO L125 PetriNetUnfolderBase]: For 241/306 co-relation queries the response was YES. [2023-11-30 07:22:35,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 98 events. 7/98 cut-off events. For 241/306 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 204 event pairs, 3 based on Foata normal form. 2/98 useless extension candidates. Maximal degree in co-relation 324. Up to 29 conditions per place. [2023-11-30 07:22:35,539 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2023-11-30 07:22:35,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 71 transitions, 585 flow [2023-11-30 07:22:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:22:35,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:22:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 358 transitions. [2023-11-30 07:22:35,540 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.685823754789272 [2023-11-30 07:22:35,540 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 358 transitions. [2023-11-30 07:22:35,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 358 transitions. [2023-11-30 07:22:35,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:35,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 358 transitions. [2023-11-30 07:22:35,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.77777777777778) internal successors, (358), 9 states have internal predecessors, (358), 0 states have call successors, (0), 0 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 07:22:35,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 0 states have call successors, (0), 0 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 07:22:35,542 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 0 states have call successors, (0), 0 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 07:22:35,543 INFO L307 CegarLoopForPetriNet]: 61 programPoint places, 34 predicate places. [2023-11-30 07:22:35,543 INFO L500 AbstractCegarLoop]: Abstraction has has 95 places, 71 transitions, 585 flow [2023-11-30 07:22:35,543 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 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 07:22:35,548 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/05-lval_ls_04-fld_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 07:22:35,572 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-30 07:22:35,572 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-30 07:22:35,572 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-30 07:22:35,572 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-30 07:22:35,572 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-30 07:22:35,572 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-30 07:22:35,573 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-30 07:22:35,573 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:22:35,573 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:35,576 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:22:35,576 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:22:35,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:22:35 BasicIcfg [2023-11-30 07:22:35,581 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:22:35,581 INFO L158 Benchmark]: Toolchain (without parser) took 2364.28ms. Allocated memory is still 513.8MB. Free memory was 463.2MB in the beginning and 292.1MB in the end (delta: 171.1MB). Peak memory consumption was 174.0MB. Max. memory is 16.0GB. [2023-11-30 07:22:35,581 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 367.0MB. Free memory is still 320.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:22:35,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.85ms. Allocated memory is still 513.8MB. Free memory was 463.2MB in the beginning and 444.1MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-30 07:22:35,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.98ms. Allocated memory is still 513.8MB. Free memory was 444.1MB in the beginning and 442.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:22:35,582 INFO L158 Benchmark]: Boogie Preprocessor took 17.00ms. Allocated memory is still 513.8MB. Free memory was 442.3MB in the beginning and 440.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:22:35,582 INFO L158 Benchmark]: RCFGBuilder took 284.22ms. Allocated memory is still 513.8MB. Free memory was 440.5MB in the beginning and 426.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 07:22:35,582 INFO L158 Benchmark]: TraceAbstraction took 1698.96ms. Allocated memory is still 513.8MB. Free memory was 426.4MB in the beginning and 292.1MB in the end (delta: 134.3MB). Peak memory consumption was 136.3MB. Max. memory is 16.0GB. [2023-11-30 07:22:35,583 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 367.0MB. Free memory is still 320.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 317.85ms. Allocated memory is still 513.8MB. Free memory was 463.2MB in the beginning and 444.1MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.98ms. Allocated memory is still 513.8MB. Free memory was 444.1MB in the beginning and 442.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.00ms. Allocated memory is still 513.8MB. Free memory was 442.3MB in the beginning and 440.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 284.22ms. Allocated memory is still 513.8MB. Free memory was 440.5MB in the beginning and 426.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1698.96ms. Allocated memory is still 513.8MB. Free memory was 426.4MB in the beginning and 292.1MB in the end (delta: 134.3MB). Peak memory consumption was 136.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 686]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 686]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 7 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: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 368 IncrementalHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 60 mSDtfsCounter, 368 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=585occurred in iteration=7, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 663 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:22:35,595 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 Received shutdown request...