/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loops/n.c24.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:37:53,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:37:53,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:37:53,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:37:53,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:37:53,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:37:53,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:37:53,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:37:53,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:37:53,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:37:53,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:37:53,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:37:53,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:37:53,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:37:53,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:37:53,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:37:53,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:37:53,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:37:53,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:37:53,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:37:53,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:37:53,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:37:53,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:37:53,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:37:53,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:37:53,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:37:53,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:37:53,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:37:53,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:37:53,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:37:53,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:37:53,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:37:53,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:37:53,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:37:53,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:37:53,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:37:53,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:37:53,755 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:37:53,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:37:53,755 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:37:53,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:37:53,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:37:53,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:37:53,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:37:53,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:37:53,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:37:53,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:37:53,758 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:37:53,758 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:37:53,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:37:53,758 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:37:53,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:37:53,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:37:53,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:37:53,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:37:53,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:37:53,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:37:53,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:37:53,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:37:53,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:37:53,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:37:53,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:37:53,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:37:54,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:37:54,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:37:54,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:37:54,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:37:54,147 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:37:54,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/n.c24.i [2022-10-16 14:37:54,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66158146b/66f031b0c6774df39b5117f16f5a3635/FLAG4979a3264 [2022-10-16 14:37:54,904 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:37:54,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c24.i [2022-10-16 14:37:54,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66158146b/66f031b0c6774df39b5117f16f5a3635/FLAG4979a3264 [2022-10-16 14:37:55,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66158146b/66f031b0c6774df39b5117f16f5a3635 [2022-10-16 14:37:55,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:37:55,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:37:55,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:37:55,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:37:55,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:37:55,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2774783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55, skipping insertion in model container [2022-10-16 14:37:55,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:37:55,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:37:55,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c24.i[805,818] [2022-10-16 14:37:55,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:37:55,587 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:37:55,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c24.i[805,818] [2022-10-16 14:37:55,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:37:55,659 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:37:55,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55 WrapperNode [2022-10-16 14:37:55,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:37:55,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:37:55,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:37:55,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:37:55,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,759 INFO L138 Inliner]: procedures = 68, calls = 33, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 160 [2022-10-16 14:37:55,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:37:55,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:37:55,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:37:55,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:37:55,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:37:55,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:37:55,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:37:55,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:37:55,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (1/1) ... [2022-10-16 14:37:55,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:37:55,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:55,871 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) [2022-10-16 14:37:55,892 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 [2022-10-16 14:37:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:37:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 14:37:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:37:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:37:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:37:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:37:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:37:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 14:37:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:37:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:37:56,077 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:37:56,080 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:37:56,495 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:37:56,503 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:37:56,503 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 14:37:56,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:56 BoogieIcfgContainer [2022-10-16 14:37:56,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:37:56,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:37:56,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:37:56,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:37:56,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:37:55" (1/3) ... [2022-10-16 14:37:56,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d768b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:56, skipping insertion in model container [2022-10-16 14:37:56,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:55" (2/3) ... [2022-10-16 14:37:56,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d768b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:56, skipping insertion in model container [2022-10-16 14:37:56,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:56" (3/3) ... [2022-10-16 14:37:56,516 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c24.i [2022-10-16 14:37:56,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:37:56,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 14:37:56,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:37:56,610 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;@7d129f92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:37:56,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 14:37:56,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 44 states have (on average 1.75) internal successors, (77), 58 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:56,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 14:37:56,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:56,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 14:37:56,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:37:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:56,630 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-10-16 14:37:56,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:56,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840413140] [2022-10-16 14:37:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:56,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:56,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:56,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:56,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840413140] [2022-10-16 14:37:56,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840413140] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:56,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:56,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:37:56,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806091617] [2022-10-16 14:37:56,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:56,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:37:56,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:56,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:37:56,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:37:56,964 INFO L87 Difference]: Start difference. First operand has 59 states, 44 states have (on average 1.75) internal successors, (77), 58 states have internal predecessors, (77), 0 states have call successors, (0), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:57,114 INFO L93 Difference]: Finished difference Result 155 states and 214 transitions. [2022-10-16 14:37:57,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:37:57,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-10-16 14:37:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:57,129 INFO L225 Difference]: With dead ends: 155 [2022-10-16 14:37:57,129 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 14:37:57,133 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 [2022-10-16 14:37:57,137 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 50 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:57,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 100 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:57,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 14:37:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2022-10-16 14:37:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 73 states have (on average 1.5068493150684932) internal successors, (110), 86 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2022-10-16 14:37:57,193 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 4 [2022-10-16 14:37:57,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:57,194 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2022-10-16 14:37:57,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2022-10-16 14:37:57,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:37:57,195 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:57,195 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 14:37:57,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:37:57,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:37:57,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:57,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2022-10-16 14:37:57,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:57,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671077875] [2022-10-16 14:37:57,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:57,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:57,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:57,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:57,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671077875] [2022-10-16 14:37:57,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671077875] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:57,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:57,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:37:57,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594668298] [2022-10-16 14:37:57,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:57,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:37:57,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:57,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:37:57,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:37:57,325 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:57,411 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2022-10-16 14:37:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:37:57,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-10-16 14:37:57,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:57,413 INFO L225 Difference]: With dead ends: 87 [2022-10-16 14:37:57,414 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 14:37:57,414 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 [2022-10-16 14:37:57,419 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 50 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:57,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 38 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 14:37:57,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-10-16 14:37:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 81 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 105 transitions. [2022-10-16 14:37:57,455 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 105 transitions. Word has length 7 [2022-10-16 14:37:57,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:57,455 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 105 transitions. [2022-10-16 14:37:57,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,456 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 105 transitions. [2022-10-16 14:37:57,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:37:57,457 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:57,457 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 14:37:57,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:37:57,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:37:57,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2022-10-16 14:37:57,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:57,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123035366] [2022-10-16 14:37:57,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:57,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:57,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:57,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123035366] [2022-10-16 14:37:57,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123035366] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:57,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566476172] [2022-10-16 14:37:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:57,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:57,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:57,682 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) [2022-10-16 14:37:57,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:37:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:57,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:37:57,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:57,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:57,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566476172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:57,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:57,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 14:37:57,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481212605] [2022-10-16 14:37:57,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:57,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:57,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:57,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:37:57,826 INFO L87 Difference]: Start difference. First operand 82 states and 105 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:57,911 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2022-10-16 14:37:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:57,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-10-16 14:37:57,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:57,913 INFO L225 Difference]: With dead ends: 86 [2022-10-16 14:37:57,913 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 14:37:57,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:37:57,916 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 90 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:57,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 103 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 14:37:57,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 43. [2022-10-16 14:37:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.358974358974359) internal successors, (53), 42 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-10-16 14:37:57,927 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 8 [2022-10-16 14:37:57,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:57,928 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-10-16 14:37:57,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-10-16 14:37:57,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:37:57,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:57,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:57,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:58,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:58,144 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:37:58,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1009755470, now seen corresponding path program 1 times [2022-10-16 14:37:58,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:58,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670215724] [2022-10-16 14:37:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:58,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:58,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:58,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670215724] [2022-10-16 14:37:58,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670215724] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:58,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648108938] [2022-10-16 14:37:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:58,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:58,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:58,303 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) [2022-10-16 14:37:58,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:37:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:58,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:37:58,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:58,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:58,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:58,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648108938] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:58,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:58,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 14:37:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766443136] [2022-10-16 14:37:58,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:58,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:37:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:58,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:37:58,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:37:58,456 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:58,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:58,581 INFO L93 Difference]: Finished difference Result 198 states and 247 transitions. [2022-10-16 14:37:58,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:37:58,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 16 [2022-10-16 14:37:58,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:58,584 INFO L225 Difference]: With dead ends: 198 [2022-10-16 14:37:58,585 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 14:37:58,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:37:58,587 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 320 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:58,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 138 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 14:37:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 52. [2022-10-16 14:37:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 51 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2022-10-16 14:37:58,617 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 16 [2022-10-16 14:37:58,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:58,617 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2022-10-16 14:37:58,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2022-10-16 14:37:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 14:37:58,619 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:58,619 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:58,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:58,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 14:37:58,833 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:37:58,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash 308851384, now seen corresponding path program 2 times [2022-10-16 14:37:58,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:58,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365503174] [2022-10-16 14:37:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:58,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:37:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:58,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365503174] [2022-10-16 14:37:58,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365503174] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:58,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:58,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:58,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170380626] [2022-10-16 14:37:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:58,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:58,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:58,988 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:59,029 INFO L93 Difference]: Finished difference Result 88 states and 107 transitions. [2022-10-16 14:37:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 25 [2022-10-16 14:37:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:59,032 INFO L225 Difference]: With dead ends: 88 [2022-10-16 14:37:59,032 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 14:37:59,032 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 [2022-10-16 14:37:59,034 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 38 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:59,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 143 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 14:37:59,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2022-10-16 14:37:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 78 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 100 transitions. [2022-10-16 14:37:59,052 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 100 transitions. Word has length 25 [2022-10-16 14:37:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:59,052 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 100 transitions. [2022-10-16 14:37:59,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2022-10-16 14:37:59,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:37:59,054 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:59,054 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:59,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:37:59,055 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:37:59,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:59,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1167141284, now seen corresponding path program 1 times [2022-10-16 14:37:59,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:59,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835943522] [2022-10-16 14:37:59,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:59,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:37:59,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:59,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835943522] [2022-10-16 14:37:59,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835943522] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:59,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:59,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937010181] [2022-10-16 14:37:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:59,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:59,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:59,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:59,177 INFO L87 Difference]: Start difference. First operand 79 states and 100 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:59,218 INFO L93 Difference]: Finished difference Result 142 states and 183 transitions. [2022-10-16 14:37:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:59,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 28 [2022-10-16 14:37:59,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:59,221 INFO L225 Difference]: With dead ends: 142 [2022-10-16 14:37:59,221 INFO L226 Difference]: Without dead ends: 140 [2022-10-16 14:37:59,221 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 [2022-10-16 14:37:59,222 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 39 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:59,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 172 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:59,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-10-16 14:37:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 109. [2022-10-16 14:37:59,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 105 states have (on average 1.3142857142857143) internal successors, (138), 108 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) [2022-10-16 14:37:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 138 transitions. [2022-10-16 14:37:59,242 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 138 transitions. Word has length 28 [2022-10-16 14:37:59,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:59,242 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 138 transitions. [2022-10-16 14:37:59,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:59,243 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 138 transitions. [2022-10-16 14:37:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 14:37:59,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:59,244 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:59,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:37:59,245 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:37:59,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:59,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1209567153, now seen corresponding path program 1 times [2022-10-16 14:37:59,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:59,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767204537] [2022-10-16 14:37:59,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:59,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:59,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:59,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767204537] [2022-10-16 14:37:59,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767204537] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:59,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595321965] [2022-10-16 14:37:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:59,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:59,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:59,395 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) [2022-10-16 14:37:59,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:37:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:59,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:37:59,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:59,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:59,640 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:59,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595321965] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:59,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:59,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-10-16 14:37:59,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098832843] [2022-10-16 14:37:59,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:59,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:37:59,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:59,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:37:59,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:37:59,644 INFO L87 Difference]: Start difference. First operand 109 states and 138 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:00,065 INFO L93 Difference]: Finished difference Result 1059 states and 1374 transitions. [2022-10-16 14:38:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:38:00,065 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 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 32 [2022-10-16 14:38:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:00,071 INFO L225 Difference]: With dead ends: 1059 [2022-10-16 14:38:00,071 INFO L226 Difference]: Without dead ends: 965 [2022-10-16 14:38:00,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:38:00,074 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 866 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:00,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 338 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:38:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2022-10-16 14:38:00,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 127. [2022-10-16 14:38:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 126 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 156 transitions. [2022-10-16 14:38:00,106 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 156 transitions. Word has length 32 [2022-10-16 14:38:00,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:00,106 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 156 transitions. [2022-10-16 14:38:00,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:00,107 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 156 transitions. [2022-10-16 14:38:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 14:38:00,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:00,110 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:00,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:00,326 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 [2022-10-16 14:38:00,327 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:38:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1428316401, now seen corresponding path program 2 times [2022-10-16 14:38:00,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:00,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640622270] [2022-10-16 14:38:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:00,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:00,678 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:38:00,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:00,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640622270] [2022-10-16 14:38:00,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640622270] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:00,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262880229] [2022-10-16 14:38:00,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:38:00,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:00,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:00,683 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) [2022-10-16 14:38:00,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:38:00,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:38:00,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:00,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:38:00,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:00,827 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-10-16 14:38:00,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-10-16 14:38:00,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262880229] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:00,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:00,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-10-16 14:38:00,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232461000] [2022-10-16 14:38:00,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:00,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:38:00,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:00,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:38:00,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:38:00,874 INFO L87 Difference]: Start difference. First operand 127 states and 156 transitions. Second operand has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:02,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:02,027 INFO L93 Difference]: Finished difference Result 1294 states and 1672 transitions. [2022-10-16 14:38:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 14:38:02,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 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 50 [2022-10-16 14:38:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:02,035 INFO L225 Difference]: With dead ends: 1294 [2022-10-16 14:38:02,035 INFO L226 Difference]: Without dead ends: 1200 [2022-10-16 14:38:02,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=820, Invalid=1730, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:38:02,039 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2476 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2476 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:02,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2476 Valid, 343 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:38:02,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-10-16 14:38:02,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 129. [2022-10-16 14:38:02,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 126 states have (on average 1.253968253968254) internal successors, (158), 128 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:02,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 158 transitions. [2022-10-16 14:38:02,079 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 158 transitions. Word has length 50 [2022-10-16 14:38:02,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:02,079 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 158 transitions. [2022-10-16 14:38:02,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 158 transitions. [2022-10-16 14:38:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 14:38:02,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:02,082 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:02,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:02,297 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 [2022-10-16 14:38:02,297 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:38:02,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:02,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1156275051, now seen corresponding path program 1 times [2022-10-16 14:38:02,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:02,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164027625] [2022-10-16 14:38:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:02,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:38:02,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:02,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164027625] [2022-10-16 14:38:02,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164027625] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:02,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725107948] [2022-10-16 14:38:02,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:02,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:02,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:02,648 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) [2022-10-16 14:38:02,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:38:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:02,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:38:02,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:02,842 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:38:02,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:38:03,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725107948] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:03,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:03,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-10-16 14:38:03,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658901601] [2022-10-16 14:38:03,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:03,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 14:38:03,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:03,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 14:38:03,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:38:03,129 INFO L87 Difference]: Start difference. First operand 129 states and 158 transitions. Second operand has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 27 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:04,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:04,355 INFO L93 Difference]: Finished difference Result 2378 states and 3092 transitions. [2022-10-16 14:38:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 14:38:04,355 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 27 states have internal predecessors, (87), 0 states have call successors, (0), 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 54 [2022-10-16 14:38:04,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:04,369 INFO L225 Difference]: With dead ends: 2378 [2022-10-16 14:38:04,369 INFO L226 Difference]: Without dead ends: 2285 [2022-10-16 14:38:04,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:38:04,373 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 3703 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:04,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 807 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:38:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2022-10-16 14:38:04,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 168. [2022-10-16 14:38:04,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 165 states have (on average 1.1939393939393939) internal successors, (197), 167 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:04,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 197 transitions. [2022-10-16 14:38:04,425 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 197 transitions. Word has length 54 [2022-10-16 14:38:04,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:04,426 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 197 transitions. [2022-10-16 14:38:04,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 27 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:04,426 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 197 transitions. [2022-10-16 14:38:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 14:38:04,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:04,432 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:04,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:04,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:04,649 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:38:04,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash -218588239, now seen corresponding path program 2 times [2022-10-16 14:38:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:04,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422111887] [2022-10-16 14:38:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:04,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:38:05,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:05,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422111887] [2022-10-16 14:38:05,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422111887] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:05,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198371460] [2022-10-16 14:38:05,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:38:05,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:05,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:05,712 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) [2022-10-16 14:38:05,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:38:05,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:38:05,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:05,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 14:38:05,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:38:05,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:38:06,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198371460] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:06,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:06,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 14:38:06,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593509352] [2022-10-16 14:38:06,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:06,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 14:38:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 14:38:06,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:38:06,938 INFO L87 Difference]: Start difference. First operand 168 states and 197 transitions. Second operand has 53 states, 53 states have (on average 3.1132075471698113) internal successors, (165), 53 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:11,063 INFO L93 Difference]: Finished difference Result 4848 states and 6303 transitions. [2022-10-16 14:38:11,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 14:38:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.1132075471698113) internal successors, (165), 53 states have internal predecessors, (165), 0 states have call successors, (0), 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 93 [2022-10-16 14:38:11,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:11,090 INFO L225 Difference]: With dead ends: 4848 [2022-10-16 14:38:11,090 INFO L226 Difference]: Without dead ends: 4755 [2022-10-16 14:38:11,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:38:11,094 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 8277 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8277 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:11,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8277 Valid, 1608 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 14:38:11,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2022-10-16 14:38:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 246. [2022-10-16 14:38:11,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 243 states have (on average 1.131687242798354) internal successors, (275), 245 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 275 transitions. [2022-10-16 14:38:11,224 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 275 transitions. Word has length 93 [2022-10-16 14:38:11,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:11,225 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 275 transitions. [2022-10-16 14:38:11,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.1132075471698113) internal successors, (165), 53 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 275 transitions. [2022-10-16 14:38:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-16 14:38:11,232 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:11,233 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:11,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 14:38:11,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:11,434 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:38:11,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:11,436 INFO L85 PathProgramCache]: Analyzing trace with hash -406956431, now seen corresponding path program 3 times [2022-10-16 14:38:11,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:11,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852258374] [2022-10-16 14:38:11,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:11,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3732 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:38:15,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:15,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852258374] [2022-10-16 14:38:15,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852258374] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:15,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019000124] [2022-10-16 14:38:15,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:38:15,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:15,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:15,134 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) [2022-10-16 14:38:15,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:38:15,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:38:15,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:15,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:38:15,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:15,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3732 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3725 trivial. 0 not checked. [2022-10-16 14:38:15,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:38:15,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019000124] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:38:15,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:38:15,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [53] total 55 [2022-10-16 14:38:15,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224755658] [2022-10-16 14:38:15,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:38:15,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:38:15,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:15,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:38:15,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1382, Invalid=1588, Unknown=0, NotChecked=0, Total=2970 [2022-10-16 14:38:15,316 INFO L87 Difference]: Start difference. First operand 246 states and 275 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:15,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:15,400 INFO L93 Difference]: Finished difference Result 249 states and 278 transitions. [2022-10-16 14:38:15,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:38:15,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 171 [2022-10-16 14:38:15,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:15,402 INFO L225 Difference]: With dead ends: 249 [2022-10-16 14:38:15,403 INFO L226 Difference]: Without dead ends: 248 [2022-10-16 14:38:15,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1386, Invalid=1694, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 14:38:15,405 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 37 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:15,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 103 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:38:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-10-16 14:38:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 203. [2022-10-16 14:38:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 201 states have (on average 1.0796019900497513) internal successors, (217), 202 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2022-10-16 14:38:15,449 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 171 [2022-10-16 14:38:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:15,449 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2022-10-16 14:38:15,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2022-10-16 14:38:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-16 14:38:15,451 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:15,451 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:15,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:15,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:15,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:38:15,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1947375707, now seen corresponding path program 1 times [2022-10-16 14:38:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:15,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248057724] [2022-10-16 14:38:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3730 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:38:18,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:18,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248057724] [2022-10-16 14:38:18,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248057724] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:18,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719115304] [2022-10-16 14:38:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:18,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:18,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:18,868 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) [2022-10-16 14:38:18,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:38:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:19,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 52 conjunts are in the unsatisfiable core [2022-10-16 14:38:19,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3730 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:38:19,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3730 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:38:22,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719115304] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:22,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:22,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 105 [2022-10-16 14:38:22,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201032014] [2022-10-16 14:38:22,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:22,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-10-16 14:38:22,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-10-16 14:38:22,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2022-10-16 14:38:22,862 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand has 105 states, 105 states have (on average 3.085714285714286) internal successors, (324), 105 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:48,152 INFO L93 Difference]: Finished difference Result 5359 states and 6751 transitions. [2022-10-16 14:38:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-16 14:38:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 3.085714285714286) internal successors, (324), 105 states have internal predecessors, (324), 0 states have call successors, (0), 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 172 [2022-10-16 14:38:48,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:48,176 INFO L225 Difference]: With dead ends: 5359 [2022-10-16 14:38:48,176 INFO L226 Difference]: Without dead ends: 5309 [2022-10-16 14:38:48,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2022-10-16 14:38:48,181 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 16374 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16374 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:48,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16374 Valid, 3202 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 14:38:48,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2022-10-16 14:38:48,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 359. [2022-10-16 14:38:48,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 357 states have (on average 1.0448179271708684) internal successors, (373), 358 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:48,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 373 transitions. [2022-10-16 14:38:48,274 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 373 transitions. Word has length 172 [2022-10-16 14:38:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:48,275 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 373 transitions. [2022-10-16 14:38:48,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 3.085714285714286) internal successors, (324), 105 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:38:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 373 transitions. [2022-10-16 14:38:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-10-16 14:38:48,281 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:48,281 INFO L195 NwaCegarLoop]: trace histogram [102, 102, 102, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:48,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:48,495 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,SelfDestructingSolverStorable11 [2022-10-16 14:38:48,496 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:38:48,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:48,497 INFO L85 PathProgramCache]: Analyzing trace with hash -440974629, now seen corresponding path program 2 times [2022-10-16 14:38:48,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:48,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071798809] [2022-10-16 14:38:48,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:48,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 15560 backedges. 0 proven. 15555 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:38:58,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:58,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071798809] [2022-10-16 14:38:58,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071798809] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:58,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869459109] [2022-10-16 14:38:58,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:38:58,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:58,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:58,976 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:58,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:38:59,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:38:59,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:59,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 104 conjunts are in the unsatisfiable core [2022-10-16 14:38:59,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15560 backedges. 0 proven. 15555 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:38:59,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 15560 backedges. 0 proven. 15555 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:39:13,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869459109] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:13,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:13,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105, 105] total 209 [2022-10-16 14:39:13,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403688801] [2022-10-16 14:39:13,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:13,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2022-10-16 14:39:13,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2022-10-16 14:39:13,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21736, Invalid=21736, Unknown=0, NotChecked=0, Total=43472 [2022-10-16 14:39:13,890 INFO L87 Difference]: Start difference. First operand 359 states and 373 transitions. Second operand has 209 states, 209 states have (on average 3.0430622009569377) internal successors, (636), 209 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)