/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:40:35,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:40:35,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:40:35,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 10:40:35,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:40:35,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:40:35,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:40:35,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:40:35,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:40:35,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:40:35,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:40:35,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:40:35,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:40:35,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:40:35,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:40:35,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:40:35,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:40:35,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:40:35,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:40:35,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:40:35,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:40:35,606 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:40:35,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:40:35,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:40:35,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:40:35,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:40:35,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:40:35,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:40:35,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:40:35,608 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:40:35,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:40:35,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:40:35,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:40:35,610 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:40:35,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:40:35,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:40:35,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:40:35,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:40:35,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:40:35,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:40:35,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:40:35,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:40:35,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:40:35,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:40:35,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:40:35,612 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:40:35,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:40:35,612 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:40:35,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:40:35,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:40:35,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:40:35,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:40:35,898 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:40:35,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2022-09-16 10:40:35,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac711287a/fd292670ffcd42318d2439f74706252e/FLAG17437ce28 [2022-09-16 10:40:36,452 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:40:36,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2022-09-16 10:40:36,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac711287a/fd292670ffcd42318d2439f74706252e/FLAG17437ce28 [2022-09-16 10:40:36,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac711287a/fd292670ffcd42318d2439f74706252e [2022-09-16 10:40:36,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:40:36,757 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:40:36,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:40:36,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:40:36,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:40:36,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:40:36" (1/1) ... [2022-09-16 10:40:36,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36347636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:36, skipping insertion in model container [2022-09-16 10:40:36,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:40:36" (1/1) ... [2022-09-16 10:40:36,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:40:36,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:40:37,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:40:37,412 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:40:37,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:40:37,538 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:40:37,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37 WrapperNode [2022-09-16 10:40:37,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:40:37,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:40:37,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:40:37,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:40:37,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,611 INFO L138 Inliner]: procedures = 369, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 133 [2022-09-16 10:40:37,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:40:37,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:40:37,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:40:37,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:40:37,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:40:37,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:40:37,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:40:37,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:40:37,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (1/1) ... [2022-09-16 10:40:37,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:40:37,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:37,683 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) [2022-09-16 10:40:37,700 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 [2022-09-16 10:40:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:40:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-09-16 10:40:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:40:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:40:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:40:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 10:40:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:40:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:40:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-16 10:40:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 10:40:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 10:40:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:40:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:40:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:40:37,736 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:40:37,856 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:40:37,858 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:40:38,147 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:40:38,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:40:38,157 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:40:38,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:40:38 BoogieIcfgContainer [2022-09-16 10:40:38,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:40:38,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:40:38,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:40:38,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:40:38,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:40:36" (1/3) ... [2022-09-16 10:40:38,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7972bca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:40:38, skipping insertion in model container [2022-09-16 10:40:38,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:40:37" (2/3) ... [2022-09-16 10:40:38,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7972bca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:40:38, skipping insertion in model container [2022-09-16 10:40:38,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:40:38" (3/3) ... [2022-09-16 10:40:38,180 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2022-09-16 10:40:38,187 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:40:38,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:40:38,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:40:38,197 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:40:38,277 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:40:38,303 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 160 transitions, 325 flow [2022-09-16 10:40:38,406 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2718 states, 2702 states have (on average 2.028497409326425) internal successors, (5481), 2717 states have internal predecessors, (5481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:40:38,433 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22ac99d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:40:38,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-09-16 10:40:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 2718 states, 2702 states have (on average 2.028497409326425) internal successors, (5481), 2717 states have internal predecessors, (5481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-09-16 10:40:38,447 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:38,448 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:40:38,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:38,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1719504666, now seen corresponding path program 1 times [2022-09-16 10:40:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:38,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768308219] [2022-09-16 10:40:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:38,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:38,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768308219] [2022-09-16 10:40:38,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768308219] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:38,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:38,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:40:38,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380671911] [2022-09-16 10:40:38,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:38,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-16 10:40:38,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:38,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-16 10:40:38,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 10:40:38,719 INFO L87 Difference]: Start difference. First operand has 2718 states, 2702 states have (on average 2.028497409326425) internal successors, (5481), 2717 states have internal predecessors, (5481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:38,778 INFO L93 Difference]: Finished difference Result 2718 states and 5386 transitions. [2022-09-16 10:40:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 10:40:38,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-09-16 10:40:38,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:38,823 INFO L225 Difference]: With dead ends: 2718 [2022-09-16 10:40:38,823 INFO L226 Difference]: Without dead ends: 2718 [2022-09-16 10:40:38,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 10:40:38,829 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:38,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:38,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2022-09-16 10:40:38,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 2718. [2022-09-16 10:40:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2702 states have (on average 1.993338267949667) internal successors, (5386), 2717 states have internal predecessors, (5386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 5386 transitions. [2022-09-16 10:40:38,971 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 5386 transitions. Word has length 35 [2022-09-16 10:40:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:38,971 INFO L495 AbstractCegarLoop]: Abstraction has 2718 states and 5386 transitions. [2022-09-16 10:40:38,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 5386 transitions. [2022-09-16 10:40:38,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-09-16 10:40:38,978 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:38,979 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:40:38,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:40:38,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:38,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:38,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1590421947, now seen corresponding path program 1 times [2022-09-16 10:40:38,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:38,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894819808] [2022-09-16 10:40:38,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:38,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:39,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:39,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894819808] [2022-09-16 10:40:39,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894819808] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:39,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:39,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:40:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974156451] [2022-09-16 10:40:39,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:39,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:40:39,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:39,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:40:39,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:40:39,077 INFO L87 Difference]: Start difference. First operand 2718 states and 5386 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:39,187 INFO L93 Difference]: Finished difference Result 4901 states and 9729 transitions. [2022-09-16 10:40:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:40:39,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-09-16 10:40:39,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:39,216 INFO L225 Difference]: With dead ends: 4901 [2022-09-16 10:40:39,217 INFO L226 Difference]: Without dead ends: 4901 [2022-09-16 10:40:39,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:40:39,220 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 114 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:39,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 328 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:40:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4901 states. [2022-09-16 10:40:39,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4901 to 2764. [2022-09-16 10:40:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2748 states have (on average 1.9934497816593886) internal successors, (5478), 2763 states have internal predecessors, (5478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 5478 transitions. [2022-09-16 10:40:39,316 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 5478 transitions. Word has length 35 [2022-09-16 10:40:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:39,319 INFO L495 AbstractCegarLoop]: Abstraction has 2764 states and 5478 transitions. [2022-09-16 10:40:39,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 5478 transitions. [2022-09-16 10:40:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-09-16 10:40:39,329 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:39,329 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:40:39,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:40:39,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:39,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:39,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2017749774, now seen corresponding path program 1 times [2022-09-16 10:40:39,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:39,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495500454] [2022-09-16 10:40:39,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:39,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:39,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:39,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495500454] [2022-09-16 10:40:39,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495500454] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:39,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:39,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:40:39,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149582679] [2022-09-16 10:40:39,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:39,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:40:39,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:39,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:40:39,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:40:39,423 INFO L87 Difference]: Start difference. First operand 2764 states and 5478 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:39,529 INFO L93 Difference]: Finished difference Result 4900 states and 9728 transitions. [2022-09-16 10:40:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:40:39,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-09-16 10:40:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:39,553 INFO L225 Difference]: With dead ends: 4900 [2022-09-16 10:40:39,553 INFO L226 Difference]: Without dead ends: 4900 [2022-09-16 10:40:39,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:40:39,556 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 97 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:39,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 510 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:40:39,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4900 states. [2022-09-16 10:40:39,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4900 to 2783. [2022-09-16 10:40:39,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2767 states have (on average 1.986628117094326) internal successors, (5497), 2782 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 5497 transitions. [2022-09-16 10:40:39,713 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 5497 transitions. Word has length 42 [2022-09-16 10:40:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:39,714 INFO L495 AbstractCegarLoop]: Abstraction has 2783 states and 5497 transitions. [2022-09-16 10:40:39,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 5497 transitions. [2022-09-16 10:40:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:40:39,717 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:39,718 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:40:39,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:40:39,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:39,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1883442586, now seen corresponding path program 1 times [2022-09-16 10:40:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:39,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851633497] [2022-09-16 10:40:39,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:39,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851633497] [2022-09-16 10:40:39,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851633497] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105230613] [2022-09-16 10:40:39,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:39,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:39,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:39,809 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) [2022-09-16 10:40:39,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:40:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:39,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-16 10:40:39,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:40:39,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:40:39,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105230613] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:39,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:40:39,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-09-16 10:40:39,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17320242] [2022-09-16 10:40:39,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:39,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:40:39,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:39,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:40:39,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:40:39,969 INFO L87 Difference]: Start difference. First operand 2783 states and 5497 transitions. Second operand has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:40,020 INFO L93 Difference]: Finished difference Result 5006 states and 10000 transitions. [2022-09-16 10:40:40,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:40:40,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-09-16 10:40:40,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:40,042 INFO L225 Difference]: With dead ends: 5006 [2022-09-16 10:40:40,042 INFO L226 Difference]: Without dead ends: 5006 [2022-09-16 10:40:40,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:40:40,046 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 92 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:40,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 343 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:40,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5006 states. [2022-09-16 10:40:40,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5006 to 3011. [2022-09-16 10:40:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 2995 states have (on average 1.9876460767946578) internal successors, (5953), 3010 states have internal predecessors, (5953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:40,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 5953 transitions. [2022-09-16 10:40:40,142 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 5953 transitions. Word has length 57 [2022-09-16 10:40:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:40,143 INFO L495 AbstractCegarLoop]: Abstraction has 3011 states and 5953 transitions. [2022-09-16 10:40:40,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 5953 transitions. [2022-09-16 10:40:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 10:40:40,147 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:40,147 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:40:40,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:40,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:40,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1742821583, now seen corresponding path program 1 times [2022-09-16 10:40:40,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:40,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100126252] [2022-09-16 10:40:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:40,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:40,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:40,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100126252] [2022-09-16 10:40:40,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100126252] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:40,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474085822] [2022-09-16 10:40:40,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:40,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:40,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:40,441 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) [2022-09-16 10:40:40,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:40:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:40,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-16 10:40:40,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:40,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:40:40,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:40:40,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474085822] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:40,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:40:40,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-09-16 10:40:40,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859767452] [2022-09-16 10:40:40,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:40,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:40:40,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:40:40,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:40:40,565 INFO L87 Difference]: Start difference. First operand 3011 states and 5953 transitions. Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:40,617 INFO L93 Difference]: Finished difference Result 5006 states and 9943 transitions. [2022-09-16 10:40:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:40:40,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-09-16 10:40:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:40,639 INFO L225 Difference]: With dead ends: 5006 [2022-09-16 10:40:40,639 INFO L226 Difference]: Without dead ends: 5006 [2022-09-16 10:40:40,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:40:40,640 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 92 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:40,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 342 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5006 states. [2022-09-16 10:40:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5006 to 3068. [2022-09-16 10:40:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3052 states have (on average 1.9878768020969855) internal successors, (6067), 3067 states have internal predecessors, (6067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:40,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 6067 transitions. [2022-09-16 10:40:40,726 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 6067 transitions. Word has length 58 [2022-09-16 10:40:40,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:40,726 INFO L495 AbstractCegarLoop]: Abstraction has 3068 states and 6067 transitions. [2022-09-16 10:40:40,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 6067 transitions. [2022-09-16 10:40:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:40:40,728 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:40,728 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:40:40,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:40,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:40,952 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:40,952 INFO L85 PathProgramCache]: Analyzing trace with hash -41584103, now seen corresponding path program 1 times [2022-09-16 10:40:40,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:40,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288537297] [2022-09-16 10:40:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:40,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:40:41,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:41,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288537297] [2022-09-16 10:40:41,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288537297] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:41,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:41,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:40:41,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581137076] [2022-09-16 10:40:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:41,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:40:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:41,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:40:41,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:40:41,037 INFO L87 Difference]: Start difference. First operand 3068 states and 6067 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:41,080 INFO L93 Difference]: Finished difference Result 3070 states and 6071 transitions. [2022-09-16 10:40:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:40:41,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-09-16 10:40:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:41,087 INFO L225 Difference]: With dead ends: 3070 [2022-09-16 10:40:41,088 INFO L226 Difference]: Without dead ends: 3070 [2022-09-16 10:40:41,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:40:41,088 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 99 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:41,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 453 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2022-09-16 10:40:41,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 3067. [2022-09-16 10:40:41,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3052 states have (on average 1.9875491480996068) internal successors, (6066), 3066 states have internal predecessors, (6066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 6066 transitions. [2022-09-16 10:40:41,157 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 6066 transitions. Word has length 64 [2022-09-16 10:40:41,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:41,158 INFO L495 AbstractCegarLoop]: Abstraction has 3067 states and 6066 transitions. [2022-09-16 10:40:41,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 6066 transitions. [2022-09-16 10:40:41,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-09-16 10:40:41,159 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:41,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:40:41,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:40:41,159 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:41,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:41,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1289106837, now seen corresponding path program 1 times [2022-09-16 10:40:41,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:41,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198720232] [2022-09-16 10:40:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:41,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:41,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:41,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198720232] [2022-09-16 10:40:41,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198720232] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:41,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613448341] [2022-09-16 10:40:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:41,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:41,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:41,260 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) [2022-09-16 10:40:41,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:40:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:41,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:40:41,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:41,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:40:41,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613448341] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:41,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:40:41,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:40:41,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777290694] [2022-09-16 10:40:41,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:41,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:40:41,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:40:41,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:40:41,493 INFO L87 Difference]: Start difference. First operand 3067 states and 6066 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:41,602 INFO L93 Difference]: Finished difference Result 5403 states and 10736 transitions. [2022-09-16 10:40:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:40:41,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-09-16 10:40:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:41,618 INFO L225 Difference]: With dead ends: 5403 [2022-09-16 10:40:41,618 INFO L226 Difference]: Without dead ends: 5403 [2022-09-16 10:40:41,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:40:41,619 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 222 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:41,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 508 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:40:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5403 states. [2022-09-16 10:40:41,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5403 to 3047. [2022-09-16 10:40:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3047 states, 3033 states have (on average 1.9934058687767886) internal successors, (6046), 3046 states have internal predecessors, (6046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 6046 transitions. [2022-09-16 10:40:41,700 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 6046 transitions. Word has length 65 [2022-09-16 10:40:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:41,701 INFO L495 AbstractCegarLoop]: Abstraction has 3047 states and 6046 transitions. [2022-09-16 10:40:41,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 6046 transitions. [2022-09-16 10:40:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-09-16 10:40:41,704 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:41,704 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:41,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:41,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:41,924 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:41,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:41,924 INFO L85 PathProgramCache]: Analyzing trace with hash 596043265, now seen corresponding path program 1 times [2022-09-16 10:40:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:41,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933814363] [2022-09-16 10:40:41,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:41,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:42,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933814363] [2022-09-16 10:40:42,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933814363] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933240272] [2022-09-16 10:40:42,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:42,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:42,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:42,002 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) [2022-09-16 10:40:42,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:40:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:42,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:40:42,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:42,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:40:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:42,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933240272] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:40:42,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:40:42,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-16 10:40:42,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146931217] [2022-09-16 10:40:42,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:40:42,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 10:40:42,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:42,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 10:40:42,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:40:42,256 INFO L87 Difference]: Start difference. First operand 3047 states and 6046 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:42,390 INFO L93 Difference]: Finished difference Result 5426 states and 10759 transitions. [2022-09-16 10:40:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 10:40:42,391 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-09-16 10:40:42,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:42,401 INFO L225 Difference]: With dead ends: 5426 [2022-09-16 10:40:42,402 INFO L226 Difference]: Without dead ends: 5426 [2022-09-16 10:40:42,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:40:42,403 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 434 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:42,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 752 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:40:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2022-09-16 10:40:42,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 3091. [2022-09-16 10:40:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3091 states, 3077 states have (on average 1.9792005199870004) internal successors, (6090), 3090 states have internal predecessors, (6090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 6090 transitions. [2022-09-16 10:40:42,494 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 6090 transitions. Word has length 88 [2022-09-16 10:40:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:42,494 INFO L495 AbstractCegarLoop]: Abstraction has 3091 states and 6090 transitions. [2022-09-16 10:40:42,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 6090 transitions. [2022-09-16 10:40:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-09-16 10:40:42,497 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:42,497 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:42,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:42,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:42,721 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:42,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:42,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1848644439, now seen corresponding path program 2 times [2022-09-16 10:40:42,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:42,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921466847] [2022-09-16 10:40:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:42,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-09-16 10:40:42,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:42,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921466847] [2022-09-16 10:40:42,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921466847] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:42,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:42,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:40:42,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091028195] [2022-09-16 10:40:42,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:42,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:40:42,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:42,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:40:42,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:40:42,828 INFO L87 Difference]: Start difference. First operand 3091 states and 6090 transitions. Second operand has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:42,892 INFO L93 Difference]: Finished difference Result 4972 states and 9852 transitions. [2022-09-16 10:40:42,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:40:42,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2022-09-16 10:40:42,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:42,902 INFO L225 Difference]: With dead ends: 4972 [2022-09-16 10:40:42,902 INFO L226 Difference]: Without dead ends: 4972 [2022-09-16 10:40:42,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:40:42,903 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 173 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:42,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 644 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:42,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4972 states. [2022-09-16 10:40:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4972 to 4858. [2022-09-16 10:40:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4844 states have (on average 1.9867877786952932) internal successors, (9624), 4857 states have internal predecessors, (9624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 9624 transitions. [2022-09-16 10:40:43,012 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 9624 transitions. Word has length 132 [2022-09-16 10:40:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:43,013 INFO L495 AbstractCegarLoop]: Abstraction has 4858 states and 9624 transitions. [2022-09-16 10:40:43,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 9624 transitions. [2022-09-16 10:40:43,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-09-16 10:40:43,016 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:43,016 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:43,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:40:43,016 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:43,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:43,017 INFO L85 PathProgramCache]: Analyzing trace with hash -743071587, now seen corresponding path program 1 times [2022-09-16 10:40:43,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:43,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777628871] [2022-09-16 10:40:43,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:43,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-09-16 10:40:43,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:43,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777628871] [2022-09-16 10:40:43,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777628871] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:43,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:43,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:40:43,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521241201] [2022-09-16 10:40:43,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:43,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:40:43,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:43,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:40:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:40:43,111 INFO L87 Difference]: Start difference. First operand 4858 states and 9624 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:43,182 INFO L93 Difference]: Finished difference Result 8473 states and 16853 transitions. [2022-09-16 10:40:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:40:43,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2022-09-16 10:40:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:43,201 INFO L225 Difference]: With dead ends: 8473 [2022-09-16 10:40:43,202 INFO L226 Difference]: Without dead ends: 8473 [2022-09-16 10:40:43,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:40:43,202 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 169 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:43,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 600 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2022-09-16 10:40:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 8305. [2022-09-16 10:40:43,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8305 states, 8291 states have (on average 1.992160173682306) internal successors, (16517), 8304 states have internal predecessors, (16517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8305 states to 8305 states and 16517 transitions. [2022-09-16 10:40:43,409 INFO L78 Accepts]: Start accepts. Automaton has 8305 states and 16517 transitions. Word has length 138 [2022-09-16 10:40:43,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:43,409 INFO L495 AbstractCegarLoop]: Abstraction has 8305 states and 16517 transitions. [2022-09-16 10:40:43,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,410 INFO L276 IsEmpty]: Start isEmpty. Operand 8305 states and 16517 transitions. [2022-09-16 10:40:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-09-16 10:40:43,412 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:43,412 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:43,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:40:43,413 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1526322342, now seen corresponding path program 1 times [2022-09-16 10:40:43,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:43,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304067646] [2022-09-16 10:40:43,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:43,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-09-16 10:40:43,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:43,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304067646] [2022-09-16 10:40:43,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304067646] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:43,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:43,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:40:43,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294898049] [2022-09-16 10:40:43,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:43,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:40:43,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:43,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:40:43,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:40:43,476 INFO L87 Difference]: Start difference. First operand 8305 states and 16517 transitions. Second operand has 3 states, 2 states have (on average 47.5) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:43,514 INFO L93 Difference]: Finished difference Result 8207 states and 16321 transitions. [2022-09-16 10:40:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:40:43,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 47.5) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-09-16 10:40:43,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:43,534 INFO L225 Difference]: With dead ends: 8207 [2022-09-16 10:40:43,534 INFO L226 Difference]: Without dead ends: 8207 [2022-09-16 10:40:43,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:40:43,535 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 92 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:43,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 308 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:43,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8207 states. [2022-09-16 10:40:43,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8207 to 8207. [2022-09-16 10:40:43,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8207 states, 8196 states have (on average 1.9913372376769156) internal successors, (16321), 8206 states have internal predecessors, (16321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8207 states to 8207 states and 16321 transitions. [2022-09-16 10:40:43,688 INFO L78 Accepts]: Start accepts. Automaton has 8207 states and 16321 transitions. Word has length 139 [2022-09-16 10:40:43,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:43,688 INFO L495 AbstractCegarLoop]: Abstraction has 8207 states and 16321 transitions. [2022-09-16 10:40:43,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 47.5) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8207 states and 16321 transitions. [2022-09-16 10:40:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-09-16 10:40:43,691 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:43,691 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-09-16 10:40:43,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:40:43,692 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:43,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash -71351951, now seen corresponding path program 1 times [2022-09-16 10:40:43,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:43,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046802209] [2022-09-16 10:40:43,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:43,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-09-16 10:40:43,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:43,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046802209] [2022-09-16 10:40:43,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046802209] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:43,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618334457] [2022-09-16 10:40:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:43,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:43,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:43,764 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) [2022-09-16 10:40:43,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:40:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:43,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-16 10:40:43,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:44,098 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 10:40:44,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:40:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 10:40:44,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618334457] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:40:44,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:40:44,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2022-09-16 10:40:44,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322326298] [2022-09-16 10:40:44,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:40:44,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 10:40:44,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:44,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 10:40:44,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-09-16 10:40:44,264 INFO L87 Difference]: Start difference. First operand 8207 states and 16321 transitions. Second operand has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:44,937 INFO L93 Difference]: Finished difference Result 12437 states and 24785 transitions. [2022-09-16 10:40:44,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-09-16 10:40:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-09-16 10:40:44,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:44,964 INFO L225 Difference]: With dead ends: 12437 [2022-09-16 10:40:44,964 INFO L226 Difference]: Without dead ends: 12437 [2022-09-16 10:40:44,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1289, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:40:44,965 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1370 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:44,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 2422 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12437 states. [2022-09-16 10:40:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12437 to 8981. [2022-09-16 10:40:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8981 states, 8970 states have (on average 1.9924191750278706) internal successors, (17872), 8980 states have internal predecessors, (17872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8981 states to 8981 states and 17872 transitions. [2022-09-16 10:40:45,135 INFO L78 Accepts]: Start accepts. Automaton has 8981 states and 17872 transitions. Word has length 140 [2022-09-16 10:40:45,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:45,136 INFO L495 AbstractCegarLoop]: Abstraction has 8981 states and 17872 transitions. [2022-09-16 10:40:45,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,136 INFO L276 IsEmpty]: Start isEmpty. Operand 8981 states and 17872 transitions. [2022-09-16 10:40:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-09-16 10:40:45,145 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:45,145 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-09-16 10:40:45,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:45,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-09-16 10:40:45,360 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:45,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:45,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2068295955, now seen corresponding path program 1 times [2022-09-16 10:40:45,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:45,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459732876] [2022-09-16 10:40:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:45,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:45,493 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2022-09-16 10:40:45,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:45,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459732876] [2022-09-16 10:40:45,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459732876] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:45,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:45,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:40:45,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770312553] [2022-09-16 10:40:45,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:45,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:40:45,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:45,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:40:45,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:40:45,494 INFO L87 Difference]: Start difference. First operand 8981 states and 17872 transitions. Second operand has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:45,546 INFO L93 Difference]: Finished difference Result 8883 states and 17676 transitions. [2022-09-16 10:40:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:40:45,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2022-09-16 10:40:45,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:45,565 INFO L225 Difference]: With dead ends: 8883 [2022-09-16 10:40:45,565 INFO L226 Difference]: Without dead ends: 8883 [2022-09-16 10:40:45,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:40:45,566 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 176 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:45,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 608 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2022-09-16 10:40:45,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 8883. [2022-09-16 10:40:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8875 states have (on average 1.9916619718309858) internal successors, (17676), 8882 states have internal predecessors, (17676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 17676 transitions. [2022-09-16 10:40:45,741 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 17676 transitions. Word has length 258 [2022-09-16 10:40:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:45,742 INFO L495 AbstractCegarLoop]: Abstraction has 8883 states and 17676 transitions. [2022-09-16 10:40:45,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,742 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 17676 transitions. [2022-09-16 10:40:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-09-16 10:40:45,751 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:45,751 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:40:45,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 10:40:45,751 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:45,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 307335263, now seen corresponding path program 1 times [2022-09-16 10:40:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:45,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320048612] [2022-09-16 10:40:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:45,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-09-16 10:40:46,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:46,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320048612] [2022-09-16 10:40:46,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320048612] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:46,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734216512] [2022-09-16 10:40:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:46,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:46,008 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) [2022-09-16 10:40:46,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:40:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:46,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 16 conjunts are in the unsatisfiable core [2022-09-16 10:40:46,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-09-16 10:40:46,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:40:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-09-16 10:40:46,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734216512] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:40:46,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:40:46,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-09-16 10:40:46,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720073246] [2022-09-16 10:40:46,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:40:46,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 10:40:46,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:46,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 10:40:46,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:40:46,839 INFO L87 Difference]: Start difference. First operand 8883 states and 17676 transitions. Second operand has 23 states, 23 states have (on average 12.695652173913043) internal successors, (292), 23 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:47,219 INFO L93 Difference]: Finished difference Result 9038 states and 17921 transitions. [2022-09-16 10:40:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 10:40:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.695652173913043) internal successors, (292), 23 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2022-09-16 10:40:47,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:47,236 INFO L225 Difference]: With dead ends: 9038 [2022-09-16 10:40:47,237 INFO L226 Difference]: Without dead ends: 9038 [2022-09-16 10:40:47,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 501 SyntacticMatches, 11 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:40:47,238 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 601 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:47,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1626 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:40:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9038 states. [2022-09-16 10:40:47,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9038 to 8949. [2022-09-16 10:40:47,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8941 states have (on average 1.9843417962196623) internal successors, (17742), 8948 states have internal predecessors, (17742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 17742 transitions. [2022-09-16 10:40:47,443 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 17742 transitions. Word has length 259 [2022-09-16 10:40:47,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:47,443 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 17742 transitions. [2022-09-16 10:40:47,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.695652173913043) internal successors, (292), 23 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 17742 transitions. [2022-09-16 10:40:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-09-16 10:40:47,454 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:47,454 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:40:47,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:47,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:47,668 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash -88995554, now seen corresponding path program 2 times [2022-09-16 10:40:47,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:47,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920717175] [2022-09-16 10:40:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:47,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:47,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2022-09-16 10:40:47,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:47,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920717175] [2022-09-16 10:40:47,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920717175] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:47,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376417118] [2022-09-16 10:40:47,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:40:47,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:47,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:47,852 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) [2022-09-16 10:40:47,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:40:48,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:40:48,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:40:48,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:40:48,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2022-09-16 10:40:48,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:40:48,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376417118] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:48,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:40:48,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:40:48,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033985066] [2022-09-16 10:40:48,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:48,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:40:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:40:48,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:40:48,357 INFO L87 Difference]: Start difference. First operand 8949 states and 17742 transitions. Second operand has 5 states, 4 states have (on average 31.75) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:48,410 INFO L93 Difference]: Finished difference Result 8753 states and 17350 transitions. [2022-09-16 10:40:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:40:48,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 31.75) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2022-09-16 10:40:48,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:48,429 INFO L225 Difference]: With dead ends: 8753 [2022-09-16 10:40:48,429 INFO L226 Difference]: Without dead ends: 8165 [2022-09-16 10:40:48,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:40:48,430 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 176 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:48,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 547 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:48,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8165 states. [2022-09-16 10:40:48,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 4343. [2022-09-16 10:40:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 4341 states have (on average 1.9440221147201107) internal successors, (8439), 4342 states have internal predecessors, (8439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 8439 transitions. [2022-09-16 10:40:48,519 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 8439 transitions. Word has length 325 [2022-09-16 10:40:48,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:48,519 INFO L495 AbstractCegarLoop]: Abstraction has 4343 states and 8439 transitions. [2022-09-16 10:40:48,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 31.75) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 8439 transitions. [2022-09-16 10:40:48,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-09-16 10:40:48,529 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:48,529 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-09-16 10:40:48,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:48,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:48,747 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:48,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:48,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1888405954, now seen corresponding path program 1 times [2022-09-16 10:40:48,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:48,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338635954] [2022-09-16 10:40:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:48,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 1001 trivial. 0 not checked. [2022-09-16 10:40:48,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:48,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338635954] [2022-09-16 10:40:48,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338635954] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:48,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:48,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:40:48,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699569526] [2022-09-16 10:40:48,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:48,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:40:48,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:48,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:40:48,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:40:48,946 INFO L87 Difference]: Start difference. First operand 4343 states and 8439 transitions. Second operand has 4 states, 3 states have (on average 46.0) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:48,991 INFO L93 Difference]: Finished difference Result 4298 states and 8349 transitions. [2022-09-16 10:40:48,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:40:48,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 46.0) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 336 [2022-09-16 10:40:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:49,000 INFO L225 Difference]: With dead ends: 4298 [2022-09-16 10:40:49,000 INFO L226 Difference]: Without dead ends: 4298 [2022-09-16 10:40:49,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:40:49,001 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 159 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:49,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 497 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2022-09-16 10:40:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 4298. [2022-09-16 10:40:49,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4297 states have (on average 1.94298347684431) internal successors, (8349), 4297 states have internal predecessors, (8349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:49,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 8349 transitions. [2022-09-16 10:40:49,069 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 8349 transitions. Word has length 336 [2022-09-16 10:40:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:49,069 INFO L495 AbstractCegarLoop]: Abstraction has 4298 states and 8349 transitions. [2022-09-16 10:40:49,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 46.0) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 8349 transitions. [2022-09-16 10:40:49,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-09-16 10:40:49,079 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:49,080 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:40:49,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 10:40:49,080 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:49,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:49,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1588957915, now seen corresponding path program 1 times [2022-09-16 10:40:49,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:49,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871029904] [2022-09-16 10:40:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:49,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2022-09-16 10:40:49,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:49,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871029904] [2022-09-16 10:40:49,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871029904] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:49,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308620198] [2022-09-16 10:40:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:49,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:49,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:49,251 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) [2022-09-16 10:40:49,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:40:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:49,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:40:49,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2022-09-16 10:40:49,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:40:49,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308620198] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:49,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:40:49,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:40:49,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944020719] [2022-09-16 10:40:49,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:49,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:40:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:40:49,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:40:49,766 INFO L87 Difference]: Start difference. First operand 4298 states and 8349 transitions. Second operand has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:49,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:49,854 INFO L93 Difference]: Finished difference Result 4343 states and 8439 transitions. [2022-09-16 10:40:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:40:49,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2022-09-16 10:40:49,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:49,855 INFO L225 Difference]: With dead ends: 4343 [2022-09-16 10:40:49,855 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:40:49,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:40:49,856 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 210 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:49,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 732 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:40:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:40:49,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:40:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:49,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:40:49,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 337 [2022-09-16 10:40:49,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:49,857 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:40:49,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:49,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:40:49,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:40:49,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-09-16 10:40:49,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-09-16 10:40:49,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-09-16 10:40:49,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-09-16 10:40:49,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-09-16 10:40:49,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-09-16 10:40:49,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-09-16 10:40:49,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-09-16 10:40:49,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-09-16 10:40:49,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-09-16 10:40:49,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-09-16 10:40:49,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-09-16 10:40:49,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-09-16 10:40:49,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:50,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 10:40:50,090 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:50,093 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:40:50,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:40:50,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:40:50 BasicIcfg [2022-09-16 10:40:50,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:40:50,095 INFO L158 Benchmark]: Toolchain (without parser) took 13338.66ms. Allocated memory was 196.1MB in the beginning and 615.5MB in the end (delta: 419.4MB). Free memory was 164.6MB in the beginning and 337.5MB in the end (delta: -172.9MB). Peak memory consumption was 246.4MB. Max. memory is 8.0GB. [2022-09-16 10:40:50,096 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 196.1MB. Free memory is still 152.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:40:50,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 780.57ms. Allocated memory was 196.1MB in the beginning and 308.3MB in the end (delta: 112.2MB). Free memory was 164.3MB in the beginning and 249.5MB in the end (delta: -85.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-09-16 10:40:50,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.29ms. Allocated memory is still 308.3MB. Free memory was 249.5MB in the beginning and 246.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:40:50,096 INFO L158 Benchmark]: Boogie Preprocessor took 42.38ms. Allocated memory is still 308.3MB. Free memory was 246.7MB in the beginning and 244.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:40:50,096 INFO L158 Benchmark]: RCFGBuilder took 503.11ms. Allocated memory is still 308.3MB. Free memory was 244.7MB in the beginning and 225.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-09-16 10:40:50,097 INFO L158 Benchmark]: TraceAbstraction took 11920.72ms. Allocated memory was 308.3MB in the beginning and 615.5MB in the end (delta: 307.2MB). Free memory was 276.7MB in the beginning and 337.5MB in the end (delta: -60.8MB). Peak memory consumption was 246.9MB. Max. memory is 8.0GB. [2022-09-16 10:40:50,098 INFO L339 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 196.1MB. Free memory is still 152.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 780.57ms. Allocated memory was 196.1MB in the beginning and 308.3MB in the end (delta: 112.2MB). Free memory was 164.3MB in the beginning and 249.5MB in the end (delta: -85.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.29ms. Allocated memory is still 308.3MB. Free memory was 249.5MB in the beginning and 246.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.38ms. Allocated memory is still 308.3MB. Free memory was 246.7MB in the beginning and 244.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 503.11ms. Allocated memory is still 308.3MB. Free memory was 244.7MB in the beginning and 225.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 11920.72ms. Allocated memory was 308.3MB in the beginning and 615.5MB in the end (delta: 307.2MB). Free memory was 276.7MB in the beginning and 337.5MB in the end (delta: -60.8MB). Peak memory consumption was 246.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: 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, 204 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 17, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4276 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4276 mSDsluCounter, 11375 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7691 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1382 IncrementalHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 3710 mSDtfsCounter, 1382 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1942 GetRequests, 1787 SyntacticMatches, 11 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8981occurred in iteration=12, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 17 MinimizatonAttempts, 20530 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 3837 NumberOfCodeBlocks, 3837 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 4296 ConstructedInterpolants, 0 QuantifiedInterpolants, 7022 SizeOfPredicates, 30 NumberOfNonLiveVariables, 4758 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 28 InterpolantComputations, 14 PerfectInterpolantSequences, 6062/7715 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:40:50,132 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...