/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/array-fpi/ifncomp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:17:29,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:17:29,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:17:29,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 20:17:29,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:17:29,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:17:29,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:17:29,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:17:29,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:17:29,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:17:29,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:17:29,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:17:29,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:17:29,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:17:29,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:17:29,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:17:29,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:17:29,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:17:29,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:17:29,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:17:29,574 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 [2022-10-15 20:17:29,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:17:29,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:17:29,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:17:29,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:17:29,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:17:29,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:17:29,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:17:29,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:17:29,611 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:17:29,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:17:29,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:17:29,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:17:29,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:17:29,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:17:29,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:17:29,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:17:29,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:17:29,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:17:29,614 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:17:29,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:17:29,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:17:29,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:17:29,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:17:29,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:17:29,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:17:29,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:17:29,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:17:29,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:17:29,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:17:29,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:17:29,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:17:29,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:17:29,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:17:29,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:17:30,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:17:30,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:17:30,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:17:30,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:17:30,106 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:17:30,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifncomp.c [2022-10-15 20:17:30,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b9faead/fb978f9bcfad4189af52d5e3ab42c4c7/FLAG59ced49c4 [2022-10-15 20:17:31,002 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:17:31,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifncomp.c [2022-10-15 20:17:31,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b9faead/fb978f9bcfad4189af52d5e3ab42c4c7/FLAG59ced49c4 [2022-10-15 20:17:31,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b9faead/fb978f9bcfad4189af52d5e3ab42c4c7 [2022-10-15 20:17:31,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:17:31,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:17:31,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:17:31,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:17:31,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:17:31,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2be021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31, skipping insertion in model container [2022-10-15 20:17:31,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:17:31,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:17:31,547 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/array-fpi/ifncomp.c[590,603] [2022-10-15 20:17:31,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:17:31,604 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:17:31,631 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/array-fpi/ifncomp.c[590,603] [2022-10-15 20:17:31,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:17:31,706 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:17:31,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31 WrapperNode [2022-10-15 20:17:31,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:17:31,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:17:31,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:17:31,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:17:31,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,811 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 122 [2022-10-15 20:17:31,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:17:31,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:17:31,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:17:31,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:17:31,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:17:31,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:17:31,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:17:31,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:17:31,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (1/1) ... [2022-10-15 20:17:31,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:17:31,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:31,964 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) [2022-10-15 20:17:31,983 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 [2022-10-15 20:17:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:17:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:17:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:17:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 20:17:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:17:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:17:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:17:32,201 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:17:32,204 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:17:32,820 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:17:32,835 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:17:32,836 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 20:17:32,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:17:32 BoogieIcfgContainer [2022-10-15 20:17:32,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:17:32,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:17:32,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:17:32,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:17:32,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:17:31" (1/3) ... [2022-10-15 20:17:32,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2edc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:17:32, skipping insertion in model container [2022-10-15 20:17:32,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:31" (2/3) ... [2022-10-15 20:17:32,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2edc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:17:32, skipping insertion in model container [2022-10-15 20:17:32,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:17:32" (3/3) ... [2022-10-15 20:17:32,858 INFO L112 eAbstractionObserver]: Analyzing ICFG ifncomp.c [2022-10-15 20:17:32,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:17:32,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-10-15 20:17:33,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:17:33,032 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;@94e9546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:17:33,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-10-15 20:17:33,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 55 states have (on average 1.8) internal successors, (99), 85 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 20:17:33,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:33,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:33,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:33,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:33,054 INFO L85 PathProgramCache]: Analyzing trace with hash 177631247, now seen corresponding path program 1 times [2022-10-15 20:17:33,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:33,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660044199] [2022-10-15 20:17:33,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:33,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:33,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:33,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660044199] [2022-10-15 20:17:33,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660044199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:33,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:17:33,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:17:33,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125885361] [2022-10-15 20:17:33,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:33,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 20:17:33,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:33,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 20:17:33,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 20:17:33,354 INFO L87 Difference]: Start difference. First operand has 86 states, 55 states have (on average 1.8) internal successors, (99), 85 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-10-15 20:17:33,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:33,404 INFO L93 Difference]: Finished difference Result 167 states and 192 transitions. [2022-10-15 20:17:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 20:17:33,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2022-10-15 20:17:33,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:33,426 INFO L225 Difference]: With dead ends: 167 [2022-10-15 20:17:33,427 INFO L226 Difference]: Without dead ends: 80 [2022-10-15 20:17:33,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 20:17:33,442 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:33,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:17:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-15 20:17:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-10-15 20:17:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.6862745098039216) internal successors, (86), 79 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2022-10-15 20:17:33,523 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 8 [2022-10-15 20:17:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:33,528 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2022-10-15 20:17:33,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-10-15 20:17:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2022-10-15 20:17:33,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 20:17:33,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:33,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:33,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:17:33,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:33,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash 179478289, now seen corresponding path program 1 times [2022-10-15 20:17:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:33,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468864772] [2022-10-15 20:17:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:33,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:33,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:33,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468864772] [2022-10-15 20:17:33,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468864772] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:33,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:17:33,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:17:33,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295082619] [2022-10-15 20:17:33,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:33,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:17:33,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:33,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:17:33,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:17:33,770 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-10-15 20:17:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:34,109 INFO L93 Difference]: Finished difference Result 195 states and 216 transitions. [2022-10-15 20:17:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:17:34,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2022-10-15 20:17:34,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:34,113 INFO L225 Difference]: With dead ends: 195 [2022-10-15 20:17:34,113 INFO L226 Difference]: Without dead ends: 120 [2022-10-15 20:17:34,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:17:34,118 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 35 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:34,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 90 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:17:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-15 20:17:34,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2022-10-15 20:17:34,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.6129032258064515) internal successors, (100), 90 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) [2022-10-15 20:17:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2022-10-15 20:17:34,152 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 8 [2022-10-15 20:17:34,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:34,154 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2022-10-15 20:17:34,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-10-15 20:17:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2022-10-15 20:17:34,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:17:34,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:34,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:34,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:17:34,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1268858058, now seen corresponding path program 1 times [2022-10-15 20:17:34,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:34,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665037166] [2022-10-15 20:17:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:34,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665037166] [2022-10-15 20:17:34,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665037166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:34,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:17:34,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:17:34,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689504867] [2022-10-15 20:17:34,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:34,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:17:34,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:34,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:17:34,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:17:34,335 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:34,573 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2022-10-15 20:17:34,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:17:34,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-10-15 20:17:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:34,579 INFO L225 Difference]: With dead ends: 120 [2022-10-15 20:17:34,580 INFO L226 Difference]: Without dead ends: 118 [2022-10-15 20:17:34,581 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 [2022-10-15 20:17:34,587 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 33 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:34,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 147 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:17:34,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-15 20:17:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 94. [2022-10-15 20:17:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.5846153846153845) internal successors, (103), 93 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2022-10-15 20:17:34,616 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 9 [2022-10-15 20:17:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:34,617 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2022-10-15 20:17:34,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2022-10-15 20:17:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:17:34,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:34,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:34,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 20:17:34,623 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:34,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash -436409949, now seen corresponding path program 1 times [2022-10-15 20:17:34,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:34,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659637518] [2022-10-15 20:17:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:34,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:34,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:34,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659637518] [2022-10-15 20:17:34,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659637518] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:34,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:17:34,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:17:34,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118439884] [2022-10-15 20:17:34,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:34,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:17:34,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:17:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:17:34,804 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:35,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:35,074 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2022-10-15 20:17:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:17:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-10-15 20:17:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:35,080 INFO L225 Difference]: With dead ends: 183 [2022-10-15 20:17:35,081 INFO L226 Difference]: Without dead ends: 114 [2022-10-15 20:17:35,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:17:35,090 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 146 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:35,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 87 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:17:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-15 20:17:35,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2022-10-15 20:17:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.537313432835821) internal successors, (103), 95 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:35,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2022-10-15 20:17:35,124 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 11 [2022-10-15 20:17:35,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:35,125 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2022-10-15 20:17:35,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2022-10-15 20:17:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 20:17:35,128 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:35,128 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:35,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 20:17:35,129 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:35,133 INFO L85 PathProgramCache]: Analyzing trace with hash -337454983, now seen corresponding path program 1 times [2022-10-15 20:17:35,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:35,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333375500] [2022-10-15 20:17:35,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:35,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:35,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:35,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333375500] [2022-10-15 20:17:35,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333375500] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:35,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064432074] [2022-10-15 20:17:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:35,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:35,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:35,337 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) [2022-10-15 20:17:35,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:17:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:35,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:17:35,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:35,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:17:35,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064432074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:35,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:17:35,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-15 20:17:35,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429534836] [2022-10-15 20:17:35,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:35,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:17:35,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:35,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:17:35,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:17:35,533 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:35,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:35,687 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2022-10-15 20:17:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:17:35,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-10-15 20:17:35,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:35,691 INFO L225 Difference]: With dead ends: 106 [2022-10-15 20:17:35,691 INFO L226 Difference]: Without dead ends: 105 [2022-10-15 20:17:35,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:17:35,696 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 43 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:35,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 124 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:17:35,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-15 20:17:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 95. [2022-10-15 20:17:35,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 94 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2022-10-15 20:17:35,707 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 13 [2022-10-15 20:17:35,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:35,708 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2022-10-15 20:17:35,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2022-10-15 20:17:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:17:35,709 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:35,710 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:35,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 20:17:35,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:35,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:35,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:35,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1871169820, now seen corresponding path program 1 times [2022-10-15 20:17:35,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:35,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054890339] [2022-10-15 20:17:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:35,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:36,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:36,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:36,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054890339] [2022-10-15 20:17:36,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054890339] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47501738] [2022-10-15 20:17:36,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:36,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:36,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:36,061 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) [2022-10-15 20:17:36,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:17:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:36,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:17:36,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:36,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:17:36,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47501738] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:36,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:17:36,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-15 20:17:36,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566493676] [2022-10-15 20:17:36,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:36,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 20:17:36,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:36,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 20:17:36,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:17:36,207 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:36,369 INFO L93 Difference]: Finished difference Result 199 states and 214 transitions. [2022-10-15 20:17:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:17:36,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-10-15 20:17:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:36,371 INFO L225 Difference]: With dead ends: 199 [2022-10-15 20:17:36,371 INFO L226 Difference]: Without dead ends: 111 [2022-10-15 20:17:36,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:17:36,374 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 47 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:36,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:17:36,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-10-15 20:17:36,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 92. [2022-10-15 20:17:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 91 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:36,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2022-10-15 20:17:36,384 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 14 [2022-10-15 20:17:36,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:36,384 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2022-10-15 20:17:36,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:36,385 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2022-10-15 20:17:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:17:36,386 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:36,386 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:36,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:36,600 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,SelfDestructingSolverStorable5 [2022-10-15 20:17:36,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:36,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:36,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2123277787, now seen corresponding path program 1 times [2022-10-15 20:17:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:36,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992307275] [2022-10-15 20:17:36,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:36,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:37,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:37,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992307275] [2022-10-15 20:17:37,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992307275] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:37,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065563457] [2022-10-15 20:17:37,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:37,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:37,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:37,324 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) [2022-10-15 20:17:37,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:17:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:37,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 20:17:37,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:37,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-15 20:17:37,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-15 20:17:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:37,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:17:37,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2022-10-15 20:17:37,900 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-15 20:17:37,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 40 [2022-10-15 20:17:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:37,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065563457] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:17:37,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:17:37,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-15 20:17:37,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171731221] [2022-10-15 20:17:37,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:17:37,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 20:17:37,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:37,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 20:17:37,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-10-15 20:17:37,955 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 16 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:38,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:38,844 INFO L93 Difference]: Finished difference Result 143 states and 151 transitions. [2022-10-15 20:17:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:17:38,845 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 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 15 [2022-10-15 20:17:38,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:38,846 INFO L225 Difference]: With dead ends: 143 [2022-10-15 20:17:38,846 INFO L226 Difference]: Without dead ends: 142 [2022-10-15 20:17:38,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2022-10-15 20:17:38,848 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:38,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 310 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 20:17:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-15 20:17:38,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 107. [2022-10-15 20:17:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 81 states have (on average 1.4444444444444444) internal successors, (117), 106 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2022-10-15 20:17:38,887 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 15 [2022-10-15 20:17:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:38,888 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2022-10-15 20:17:38,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2022-10-15 20:17:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:17:38,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:38,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:38,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:39,093 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 [2022-10-15 20:17:39,094 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:39,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1357207355, now seen corresponding path program 1 times [2022-10-15 20:17:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:39,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497655521] [2022-10-15 20:17:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:39,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:39,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:39,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:39,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497655521] [2022-10-15 20:17:39,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497655521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:39,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:17:39,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:17:39,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629336276] [2022-10-15 20:17:39,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:39,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:17:39,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:39,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:17:39,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:17:39,160 INFO L87 Difference]: Start difference. First operand 107 states and 117 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) [2022-10-15 20:17:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:39,274 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2022-10-15 20:17:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:17:39,274 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 16 [2022-10-15 20:17:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:39,276 INFO L225 Difference]: With dead ends: 125 [2022-10-15 20:17:39,276 INFO L226 Difference]: Without dead ends: 123 [2022-10-15 20:17:39,276 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 [2022-10-15 20:17:39,277 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 27 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:39,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 148 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:17:39,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-15 20:17:39,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 110. [2022-10-15 20:17:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 109 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2022-10-15 20:17:39,286 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 16 [2022-10-15 20:17:39,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:39,286 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2022-10-15 20:17:39,287 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) [2022-10-15 20:17:39,287 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2022-10-15 20:17:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:17:39,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:39,288 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:39,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 20:17:39,288 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:39,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1397102022, now seen corresponding path program 1 times [2022-10-15 20:17:39,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:39,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900933674] [2022-10-15 20:17:39,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:39,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:39,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:39,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900933674] [2022-10-15 20:17:39,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900933674] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:39,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195407200] [2022-10-15 20:17:39,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:39,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:39,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:39,716 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) [2022-10-15 20:17:39,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:17:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:39,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 20:17:39,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:39,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-15 20:17:39,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-15 20:17:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:39,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:17:40,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2022-10-15 20:17:40,210 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-15 20:17:40,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 46 [2022-10-15 20:17:40,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:40,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195407200] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:17:40,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:17:40,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-15 20:17:40,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384242313] [2022-10-15 20:17:40,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:17:40,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 20:17:40,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 20:17:40,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-10-15 20:17:40,250 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 16 states, 15 states have (on average 2.533333333333333) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:41,290 INFO L93 Difference]: Finished difference Result 130 states and 138 transitions. [2022-10-15 20:17:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 20:17:41,291 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.533333333333333) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 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 [2022-10-15 20:17:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:41,292 INFO L225 Difference]: With dead ends: 130 [2022-10-15 20:17:41,292 INFO L226 Difference]: Without dead ends: 129 [2022-10-15 20:17:41,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2022-10-15 20:17:41,294 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 71 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:41,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 269 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 20:17:41,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-15 20:17:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 109. [2022-10-15 20:17:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 84 states have (on average 1.4047619047619047) internal successors, (118), 108 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:41,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2022-10-15 20:17:41,302 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 16 [2022-10-15 20:17:41,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:41,303 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2022-10-15 20:17:41,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.533333333333333) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:41,303 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2022-10-15 20:17:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 20:17:41,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:41,304 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:41,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:41,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:41,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:41,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1709718360, now seen corresponding path program 1 times [2022-10-15 20:17:41,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:41,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77676936] [2022-10-15 20:17:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:41,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:41,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:41,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77676936] [2022-10-15 20:17:41,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77676936] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:41,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978030481] [2022-10-15 20:17:41,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:41,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:41,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:41,609 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) [2022-10-15 20:17:41,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:17:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:41,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:17:41,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:41,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:17:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:41,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978030481] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:17:41,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:17:41,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 20:17:41,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907381157] [2022-10-15 20:17:41,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:17:41,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 20:17:41,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:41,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 20:17:41,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:17:41,770 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:42,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:42,028 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2022-10-15 20:17:42,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 20:17:42,029 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 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 18 [2022-10-15 20:17:42,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:42,031 INFO L225 Difference]: With dead ends: 140 [2022-10-15 20:17:42,031 INFO L226 Difference]: Without dead ends: 139 [2022-10-15 20:17:42,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-15 20:17:42,033 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 123 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:42,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 155 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:17:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-10-15 20:17:42,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 121. [2022-10-15 20:17:42,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 120 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:42,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2022-10-15 20:17:42,043 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 18 [2022-10-15 20:17:42,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:42,043 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2022-10-15 20:17:42,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:42,044 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2022-10-15 20:17:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 20:17:42,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:42,045 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:42,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:42,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-15 20:17:42,261 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:42,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:42,262 INFO L85 PathProgramCache]: Analyzing trace with hash 601011110, now seen corresponding path program 1 times [2022-10-15 20:17:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:42,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897643385] [2022-10-15 20:17:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:42,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:42,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:42,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897643385] [2022-10-15 20:17:42,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897643385] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:42,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127504324] [2022-10-15 20:17:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:42,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:42,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:42,350 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) [2022-10-15 20:17:42,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:17:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:42,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:17:42,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:42,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:17:42,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127504324] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:42,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:17:42,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-15 20:17:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859951439] [2022-10-15 20:17:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:42,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:17:42,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:42,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:17:42,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:17:42,441 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:42,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:42,543 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2022-10-15 20:17:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:17:42,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-10-15 20:17:42,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:42,547 INFO L225 Difference]: With dead ends: 126 [2022-10-15 20:17:42,547 INFO L226 Difference]: Without dead ends: 124 [2022-10-15 20:17:42,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:17:42,549 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 44 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:42,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 106 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:17:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-15 20:17:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2022-10-15 20:17:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.34375) internal successors, (129), 118 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2022-10-15 20:17:42,561 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 20 [2022-10-15 20:17:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:42,563 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2022-10-15 20:17:42,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2022-10-15 20:17:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 20:17:42,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:42,570 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:42,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:42,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:42,786 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:42,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:42,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1451475318, now seen corresponding path program 1 times [2022-10-15 20:17:42,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:42,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727016251] [2022-10-15 20:17:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:42,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:42,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:42,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:42,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727016251] [2022-10-15 20:17:42,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727016251] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:42,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631973102] [2022-10-15 20:17:42,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:42,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:42,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:42,853 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) [2022-10-15 20:17:42,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:17:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:42,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:17:42,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:42,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:17:42,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631973102] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:42,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:17:42,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-15 20:17:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119231001] [2022-10-15 20:17:42,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:42,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 20:17:42,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 20:17:42,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:17:42,956 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:43,089 INFO L93 Difference]: Finished difference Result 198 states and 215 transitions. [2022-10-15 20:17:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:17:43,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-10-15 20:17:43,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:43,091 INFO L225 Difference]: With dead ends: 198 [2022-10-15 20:17:43,091 INFO L226 Difference]: Without dead ends: 129 [2022-10-15 20:17:43,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:17:43,093 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 49 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:43,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 124 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:17:43,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-15 20:17:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 115. [2022-10-15 20:17:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.305263157894737) internal successors, (124), 114 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 124 transitions. [2022-10-15 20:17:43,102 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 124 transitions. Word has length 21 [2022-10-15 20:17:43,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:43,102 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 124 transitions. [2022-10-15 20:17:43,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 124 transitions. [2022-10-15 20:17:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 20:17:43,104 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:43,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:43,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:43,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:43,318 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:43,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:43,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1032665039, now seen corresponding path program 1 times [2022-10-15 20:17:43,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:43,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384714420] [2022-10-15 20:17:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:43,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:17:43,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:43,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384714420] [2022-10-15 20:17:43,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384714420] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:43,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:17:43,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:17:43,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261340515] [2022-10-15 20:17:43,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:43,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:17:43,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:43,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:17:43,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:17:43,385 INFO L87 Difference]: Start difference. First operand 115 states and 124 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:43,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:43,486 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2022-10-15 20:17:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:17:43,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-10-15 20:17:43,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:43,487 INFO L225 Difference]: With dead ends: 129 [2022-10-15 20:17:43,488 INFO L226 Difference]: Without dead ends: 127 [2022-10-15 20:17:43,488 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 [2022-10-15 20:17:43,489 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 25 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:43,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 134 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:17:43,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-15 20:17:43,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 118. [2022-10-15 20:17:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 117 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 127 transitions. [2022-10-15 20:17:43,500 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 127 transitions. Word has length 23 [2022-10-15 20:17:43,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:43,500 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 127 transitions. [2022-10-15 20:17:43,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:43,500 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 127 transitions. [2022-10-15 20:17:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:17:43,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:43,503 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:43,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 20:17:43,503 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:43,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:43,504 INFO L85 PathProgramCache]: Analyzing trace with hash -829444182, now seen corresponding path program 1 times [2022-10-15 20:17:43,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:43,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598239624] [2022-10-15 20:17:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:43,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:43,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:43,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:43,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598239624] [2022-10-15 20:17:43,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598239624] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:43,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50352399] [2022-10-15 20:17:43,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:43,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:43,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:43,678 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) [2022-10-15 20:17:43,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:17:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:43,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:17:43,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:43,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:43,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:17:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:43,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50352399] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:17:43,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:17:43,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-15 20:17:43,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583137048] [2022-10-15 20:17:43,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:17:43,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 20:17:43,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:43,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 20:17:43,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-15 20:17:43,937 INFO L87 Difference]: Start difference. First operand 118 states and 127 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:44,385 INFO L93 Difference]: Finished difference Result 255 states and 275 transitions. [2022-10-15 20:17:44,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 20:17:44,386 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 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 24 [2022-10-15 20:17:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:44,388 INFO L225 Difference]: With dead ends: 255 [2022-10-15 20:17:44,389 INFO L226 Difference]: Without dead ends: 189 [2022-10-15 20:17:44,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-15 20:17:44,391 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 244 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:44,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 308 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:17:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-15 20:17:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 162. [2022-10-15 20:17:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 142 states have (on average 1.295774647887324) internal successors, (184), 161 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 184 transitions. [2022-10-15 20:17:44,405 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 184 transitions. Word has length 24 [2022-10-15 20:17:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:44,406 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 184 transitions. [2022-10-15 20:17:44,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 184 transitions. [2022-10-15 20:17:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 20:17:44,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:44,407 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:44,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-15 20:17:44,617 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,SelfDestructingSolverStorable13 [2022-10-15 20:17:44,618 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:44,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:44,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1717427805, now seen corresponding path program 1 times [2022-10-15 20:17:44,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:44,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140486086] [2022-10-15 20:17:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:44,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:17:44,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:44,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140486086] [2022-10-15 20:17:44,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140486086] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:44,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11946169] [2022-10-15 20:17:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:44,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:44,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:44,739 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) [2022-10-15 20:17:44,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:17:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:44,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:17:44,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:17:44,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:17:44,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11946169] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:17:44,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:17:44,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-15 20:17:44,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81719318] [2022-10-15 20:17:44,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:17:44,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 20:17:44,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 20:17:44,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:17:44,850 INFO L87 Difference]: Start difference. First operand 162 states and 184 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:44,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:44,967 INFO L93 Difference]: Finished difference Result 256 states and 298 transitions. [2022-10-15 20:17:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:17:44,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 [2022-10-15 20:17:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:44,969 INFO L225 Difference]: With dead ends: 256 [2022-10-15 20:17:44,969 INFO L226 Difference]: Without dead ends: 173 [2022-10-15 20:17:44,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:17:44,971 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:44,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 111 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:17:44,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-10-15 20:17:44,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2022-10-15 20:17:44,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 140 states have (on average 1.2428571428571429) internal successors, (174), 156 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 174 transitions. [2022-10-15 20:17:44,982 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 174 transitions. Word has length 28 [2022-10-15 20:17:44,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:44,982 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 174 transitions. [2022-10-15 20:17:44,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 174 transitions. [2022-10-15 20:17:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-15 20:17:44,983 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:44,984 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:45,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:45,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-15 20:17:45,198 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2053786656, now seen corresponding path program 1 times [2022-10-15 20:17:45,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:45,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889111849] [2022-10-15 20:17:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:45,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:45,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:45,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:45,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889111849] [2022-10-15 20:17:45,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889111849] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:45,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005681000] [2022-10-15 20:17:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:45,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:45,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:45,354 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:17:45,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 20:17:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:45,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:17:45,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:45,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:45,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:17:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:17:45,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005681000] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:17:45,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:17:45,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-15 20:17:45,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341064090] [2022-10-15 20:17:45,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:17:45,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 20:17:45,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:17:45,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 20:17:45,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-15 20:17:45,645 INFO L87 Difference]: Start difference. First operand 157 states and 174 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:17:46,050 INFO L93 Difference]: Finished difference Result 209 states and 218 transitions. [2022-10-15 20:17:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 20:17:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 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 31 [2022-10-15 20:17:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:17:46,052 INFO L225 Difference]: With dead ends: 209 [2022-10-15 20:17:46,052 INFO L226 Difference]: Without dead ends: 170 [2022-10-15 20:17:46,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-15 20:17:46,054 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 166 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:17:46,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 332 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:17:46,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-15 20:17:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 148. [2022-10-15 20:17:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 131 states have (on average 1.2290076335877862) internal successors, (161), 147 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 161 transitions. [2022-10-15 20:17:46,065 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 161 transitions. Word has length 31 [2022-10-15 20:17:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:17:46,065 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 161 transitions. [2022-10-15 20:17:46,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:17:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 161 transitions. [2022-10-15 20:17:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-15 20:17:46,067 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:17:46,067 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:17:46,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 20:17:46,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 20:17:46,280 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:17:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:17:46,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1915178996, now seen corresponding path program 1 times [2022-10-15 20:17:46,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:17:46,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933611402] [2022-10-15 20:17:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:46,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:17:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:47,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:17:47,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933611402] [2022-10-15 20:17:47,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933611402] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:17:47,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616113407] [2022-10-15 20:17:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:17:47,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:17:47,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:17:47,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:17:47,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 20:17:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:17:47,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-15 20:17:47,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:17:47,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-15 20:17:47,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-15 20:17:48,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 20:17:48,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2022-10-15 20:17:48,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 20:17:48,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-10-15 20:17:48,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2022-10-15 20:17:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:17:48,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:17:50,290 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (* .cse5 8)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse3 (<= .cse5 2147483647))) (and (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_360 Int)) (or (not (<= v_ArrVal_360 1)) (< (let ((.cse0 (store .cse2 |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_360))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse0 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse1)))) 9223372036854775808))) (not .cse3)) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_360 Int)) (or (not (<= v_ArrVal_360 1)) (< (let ((.cse4 (store .cse2 |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_360))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse4 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse1 (- 34359738368))))) 9223372036854775808))) .cse3)))) is different from false [2022-10-15 20:17:51,789 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_360 Int)) (or (not (<= v_ArrVal_360 1)) (< (+ v_ArrVal_360 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_360)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775808))) is different from false [2022-10-15 20:18:01,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 95 [2022-10-15 20:18:01,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2022-10-15 20:18:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2022-10-15 20:18:01,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616113407] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:18:01,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:18:01,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 35 [2022-10-15 20:18:01,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301820873] [2022-10-15 20:18:01,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:18:01,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-15 20:18:01,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:18:01,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-15 20:18:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=988, Unknown=6, NotChecked=130, Total=1260 [2022-10-15 20:18:01,435 INFO L87 Difference]: Start difference. First operand 148 states and 161 transitions. Second operand has 36 states, 35 states have (on average 2.6) internal successors, (91), 36 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:18:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:18:10,379 INFO L93 Difference]: Finished difference Result 230 states and 250 transitions. [2022-10-15 20:18:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-15 20:18:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.6) internal successors, (91), 36 states have internal predecessors, (91), 0 states have call successors, (0), 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 33 [2022-10-15 20:18:10,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:18:10,382 INFO L225 Difference]: With dead ends: 230 [2022-10-15 20:18:10,382 INFO L226 Difference]: Without dead ends: 229 [2022-10-15 20:18:10,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=468, Invalid=3074, Unknown=6, NotChecked=234, Total=3782 [2022-10-15 20:18:10,385 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 213 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 654 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:18:10,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 621 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1055 Invalid, 0 Unknown, 654 Unchecked, 1.4s Time] [2022-10-15 20:18:10,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-10-15 20:18:10,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 177. [2022-10-15 20:18:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 160 states have (on average 1.2125) internal successors, (194), 176 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:18:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 194 transitions. [2022-10-15 20:18:10,400 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 194 transitions. Word has length 33 [2022-10-15 20:18:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:18:10,400 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 194 transitions. [2022-10-15 20:18:10,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.6) internal successors, (91), 36 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:18:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 194 transitions. [2022-10-15 20:18:10,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-15 20:18:10,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:18:10,402 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:18:10,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 20:18:10,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-15 20:18:10,616 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:18:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:18:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1531687013, now seen corresponding path program 1 times [2022-10-15 20:18:10,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:18:10,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638982145] [2022-10-15 20:18:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:18:10,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:18:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:18:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:18:12,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:18:12,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638982145] [2022-10-15 20:18:12,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638982145] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:18:12,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751456680] [2022-10-15 20:18:12,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:18:12,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:18:12,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:18:12,314 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:18:12,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 20:18:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:18:12,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-15 20:18:12,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:18:12,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-15 20:18:12,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 65 [2022-10-15 20:18:12,694 INFO L356 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-10-15 20:18:12,694 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 113 [2022-10-15 20:18:12,730 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-15 20:18:13,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 76 [2022-10-15 20:18:13,108 INFO L356 Elim1Store]: treesize reduction 141, result has 0.7 percent of original size [2022-10-15 20:18:13,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 125 [2022-10-15 20:18:13,575 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-15 20:18:13,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 17 [2022-10-15 20:18:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:18:13,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:18:14,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 74 [2022-10-15 20:18:14,943 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-15 20:18:14,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 70 [2022-10-15 20:18:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:18:15,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751456680] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:18:15,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:18:15,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 15] total 40 [2022-10-15 20:18:15,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798997326] [2022-10-15 20:18:15,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:18:15,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-15 20:18:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:18:15,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-15 20:18:15,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1433, Unknown=0, NotChecked=0, Total=1640 [2022-10-15 20:18:15,011 INFO L87 Difference]: Start difference. First operand 177 states and 194 transitions. Second operand has 41 states, 40 states have (on average 2.25) internal successors, (90), 41 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:18:16,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:18:16,905 INFO L93 Difference]: Finished difference Result 223 states and 248 transitions. [2022-10-15 20:18:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-15 20:18:16,906 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.25) internal successors, (90), 41 states have internal predecessors, (90), 0 states have call successors, (0), 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 33 [2022-10-15 20:18:16,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:18:16,908 INFO L225 Difference]: With dead ends: 223 [2022-10-15 20:18:16,908 INFO L226 Difference]: Without dead ends: 222 [2022-10-15 20:18:16,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=340, Invalid=2312, Unknown=0, NotChecked=0, Total=2652 [2022-10-15 20:18:16,911 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 135 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 197 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 20:18:16,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 599 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 823 Invalid, 0 Unknown, 197 Unchecked, 0.9s Time] [2022-10-15 20:18:16,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-10-15 20:18:16,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 201. [2022-10-15 20:18:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 184 states have (on average 1.2065217391304348) internal successors, (222), 200 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:18:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 222 transitions. [2022-10-15 20:18:16,924 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 222 transitions. Word has length 33 [2022-10-15 20:18:16,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:18:16,925 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 222 transitions. [2022-10-15 20:18:16,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.25) internal successors, (90), 41 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:18:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 222 transitions. [2022-10-15 20:18:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 20:18:16,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:18:16,926 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:18:16,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 20:18:17,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-15 20:18:17,135 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-15 20:18:17,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:18:17,136 INFO L85 PathProgramCache]: Analyzing trace with hash 758993368, now seen corresponding path program 1 times [2022-10-15 20:18:17,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:18:17,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470029023] [2022-10-15 20:18:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:18:17,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:18:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:18:18,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:18:18,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:18:18,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470029023] [2022-10-15 20:18:18,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470029023] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:18:18,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445219294] [2022-10-15 20:18:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:18:18,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:18:18,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:18:18,589 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:18:18,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 20:18:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:18:18,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-15 20:18:18,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:18:18,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-15 20:18:18,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-15 20:18:18,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 20:18:18,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-15 20:18:19,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 20:18:19,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-15 20:18:19,410 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2022-10-15 20:18:19,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:18:19,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:18:21,012 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (* .cse5 8)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse3 (<= .cse5 2147483647))) (and (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_435 Int)) (or (not (<= 1 v_ArrVal_435)) (< 0 (let ((.cse0 (store .cse2 |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_435))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 (select .cse0 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse1))))))) (not .cse3)) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_435 Int)) (or (not (<= 1 v_ArrVal_435)) (< 0 (let ((.cse4 (store .cse2 |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_435))) (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse4 (+ |ULTIMATE.start_main_~b~0#1.offset| .cse1 (- 34359738368)))))))) .cse3)))) is different from false [2022-10-15 20:18:23,258 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (* .cse5 8)) (.cse3 (<= .cse5 2147483647))) (and (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_433 Int) (v_ArrVal_435 Int)) (or (not (<= 1 v_ArrVal_435)) (< 0 (+ v_ArrVal_435 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_433)))) (store .cse0 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_435))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< (+ v_ArrVal_433 9223372036854775808) 0))) (not .cse3)) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_433 Int) (v_ArrVal_435 Int)) (or (not (<= 1 v_ArrVal_435)) (< (+ v_ArrVal_433 9223372036854775808) 0) (< 0 (+ v_ArrVal_435 9223372036854775809 (select (select (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_433)))) (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_435))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse3)))) is different from false [2022-10-15 20:18:25,539 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_#t~post8#1| 1) 4294967296))) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (* 8 .cse5)) (.cse0 (<= .cse5 2147483647))) (and (or .cse0 (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_433 Int) (v_ArrVal_435 Int)) (or (not (<= 1 v_ArrVal_435)) (< 0 (+ v_ArrVal_435 9223372036854775809 (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse3) v_ArrVal_433)))) (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_435))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< (+ v_ArrVal_433 9223372036854775808) 0)))) (or (forall ((|ULTIMATE.start_main_~b~0#1.offset| Int) (v_ArrVal_433 Int) (v_ArrVal_435 Int)) (or (not (<= 1 v_ArrVal_435)) (< 0 (+ v_ArrVal_435 9223372036854775809 (select (select (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3) v_ArrVal_433)))) (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_435))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< (+ v_ArrVal_433 9223372036854775808) 0))) (not .cse0))))) is different from false