/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/loop-lit/gsv2008.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:30:20,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:30:20,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:30:20,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:30:20,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:30:20,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:30:20,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:30:20,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:30:20,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:30:20,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:30:20,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:30:20,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:30:20,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:30:20,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:30:20,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:30:20,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:30:20,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:30:20,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:30:20,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:30:20,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:30:20,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:30:20,822 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:30:20,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:30:20,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:30:20,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:30:20,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:30:20,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:30:20,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:30:20,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:30:20,826 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:30:20,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:30:20,826 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:30:20,827 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:30:20,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:30:20,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:30:20,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:30:20,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:30:20,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:30:20,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:30:20,828 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:30:20,829 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:30:20,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:30:20,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:30:20,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:30:20,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:30:20,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:30:20,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:30:20,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:30:20,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:30:20,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:30:20,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:30:20,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:30:20,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:30:20,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:30:20,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:30:21,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:30:21,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:30:21,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:30:21,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:30:21,267 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:30:21,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2022-10-16 14:30:21,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd7df66b/cf769de7d5c046e0a58d2f20f7b30612/FLAG973af629d [2022-10-16 14:30:21,914 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:30:21,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2022-10-16 14:30:21,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd7df66b/cf769de7d5c046e0a58d2f20f7b30612/FLAG973af629d [2022-10-16 14:30:22,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd7df66b/cf769de7d5c046e0a58d2f20f7b30612 [2022-10-16 14:30:22,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:30:22,320 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:30:22,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:30:22,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:30:22,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:30:22,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c41c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22, skipping insertion in model container [2022-10-16 14:30:22,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:30:22,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:30:22,612 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/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2022-10-16 14:30:22,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:30:22,623 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:30:22,647 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/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2022-10-16 14:30:22,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:30:22,666 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:30:22,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22 WrapperNode [2022-10-16 14:30:22,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:30:22,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:30:22,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:30:22,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:30:22,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,711 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2022-10-16 14:30:22,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:30:22,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:30:22,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:30:22,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:30:22,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:30:22,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:30:22,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:30:22,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:30:22,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (1/1) ... [2022-10-16 14:30:22,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:30:22,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:22,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:30:22,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:30:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:30:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:30:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:30:22,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:30:22,923 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:30:22,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:30:23,069 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:30:23,076 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:30:23,077 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 14:30:23,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:23 BoogieIcfgContainer [2022-10-16 14:30:23,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:30:23,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:30:23,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:30:23,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:30:23,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:22" (1/3) ... [2022-10-16 14:30:23,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adf2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:23, skipping insertion in model container [2022-10-16 14:30:23,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:22" (2/3) ... [2022-10-16 14:30:23,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adf2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:23, skipping insertion in model container [2022-10-16 14:30:23,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:23" (3/3) ... [2022-10-16 14:30:23,090 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2022-10-16 14:30:23,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:30:23,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:30:23,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:30:23,180 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;@4c0b7aad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:30:23,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:30:23,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 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) [2022-10-16 14:30:23,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:30:23,193 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:23,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:30:23,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:23,201 INFO L85 PathProgramCache]: Analyzing trace with hash 889571305, now seen corresponding path program 1 times [2022-10-16 14:30:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:23,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158450717] [2022-10-16 14:30:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:23,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:23,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158450717] [2022-10-16 14:30:23,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158450717] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:23,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:23,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:30:23,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897773391] [2022-10-16 14:30:23,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:23,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:30:23,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:30:23,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:23,536 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:23,596 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-10-16 14:30:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:30:23,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-10-16 14:30:23,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:23,608 INFO L225 Difference]: With dead ends: 28 [2022-10-16 14:30:23,608 INFO L226 Difference]: Without dead ends: 16 [2022-10-16 14:30:23,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:23,616 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:23,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-16 14:30:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-10-16 14:30:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-10-16 14:30:23,660 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-10-16 14:30:23,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:23,661 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-10-16 14:30:23,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:23,661 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-10-16 14:30:23,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:30:23,662 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:23,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:23,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:30:23,663 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:23,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1806906729, now seen corresponding path program 1 times [2022-10-16 14:30:23,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:23,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506057546] [2022-10-16 14:30:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:23,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:23,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:23,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506057546] [2022-10-16 14:30:23,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506057546] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:23,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:23,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:30:23,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144151996] [2022-10-16 14:30:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:23,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:30:23,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:23,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:30:23,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:30:23,795 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:23,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:23,862 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-10-16 14:30:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:30:23,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:30:23,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:23,864 INFO L225 Difference]: With dead ends: 17 [2022-10-16 14:30:23,864 INFO L226 Difference]: Without dead ends: 16 [2022-10-16 14:30:23,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:30:23,867 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:23,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-16 14:30:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-16 14:30:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-16 14:30:23,873 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-10-16 14:30:23,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:23,874 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-16 14:30:23,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-16 14:30:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:30:23,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:23,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:23,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:30:23,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:23,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:23,876 INFO L85 PathProgramCache]: Analyzing trace with hash 179533803, now seen corresponding path program 1 times [2022-10-16 14:30:23,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:23,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129816327] [2022-10-16 14:30:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:23,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:23,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:23,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129816327] [2022-10-16 14:30:23,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129816327] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:23,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:23,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:30:23,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248117650] [2022-10-16 14:30:23,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:23,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:30:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:23,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:30:23,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:23,974 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.0) 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) [2022-10-16 14:30:23,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:23,999 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-10-16 14:30:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:30:24,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2022-10-16 14:30:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:24,000 INFO L225 Difference]: With dead ends: 19 [2022-10-16 14:30:24,001 INFO L226 Difference]: Without dead ends: 18 [2022-10-16 14:30:24,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:24,003 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:24,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-16 14:30:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-10-16 14:30:24,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-10-16 14:30:24,014 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-10-16 14:30:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:24,014 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-10-16 14:30:24,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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) [2022-10-16 14:30:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-10-16 14:30:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:30:24,015 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:24,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:24,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:30:24,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:24,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1270580651, now seen corresponding path program 1 times [2022-10-16 14:30:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:24,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554407048] [2022-10-16 14:30:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:24,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:24,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:24,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554407048] [2022-10-16 14:30:24,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554407048] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:24,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:24,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:30:24,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905067729] [2022-10-16 14:30:24,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:24,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:30:24,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:24,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:30:24,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:24,072 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-10-16 14:30:24,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:24,087 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-10-16 14:30:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:30:24,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2022-10-16 14:30:24,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:24,088 INFO L225 Difference]: With dead ends: 17 [2022-10-16 14:30:24,088 INFO L226 Difference]: Without dead ends: 16 [2022-10-16 14:30:24,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:24,091 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:24,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:24,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-16 14:30:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-16 14:30:24,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-16 14:30:24,097 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-10-16 14:30:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:24,097 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-16 14:30:24,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-10-16 14:30:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-16 14:30:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:30:24,099 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:24,099 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:24,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:30:24,099 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:24,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1257295021, now seen corresponding path program 1 times [2022-10-16 14:30:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:24,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425055188] [2022-10-16 14:30:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:24,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:24,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:24,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425055188] [2022-10-16 14:30:24,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425055188] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:24,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773016826] [2022-10-16 14:30:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:24,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:24,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:24,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:24,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:30:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:24,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:30:24,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:24,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:24,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773016826] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:24,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:24,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 14:30:24,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135001415] [2022-10-16 14:30:24,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:24,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:30:24,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:24,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:30:24,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:30:24,511 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:24,793 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-10-16 14:30:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:30:24,795 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 [2022-10-16 14:30:24,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:24,798 INFO L225 Difference]: With dead ends: 34 [2022-10-16 14:30:24,798 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 14:30:24,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:30:24,807 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 37 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:24,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 10 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:24,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 14:30:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-10-16 14:30:24,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-10-16 14:30:24,831 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 11 [2022-10-16 14:30:24,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:24,836 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-10-16 14:30:24,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:24,837 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-10-16 14:30:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:30:24,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:24,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:24,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:25,049 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 [2022-10-16 14:30:25,050 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:25,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:25,051 INFO L85 PathProgramCache]: Analyzing trace with hash 321440037, now seen corresponding path program 1 times [2022-10-16 14:30:25,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:25,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844316541] [2022-10-16 14:30:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:25,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:25,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:25,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844316541] [2022-10-16 14:30:25,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844316541] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:25,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823648050] [2022-10-16 14:30:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:25,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:25,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:25,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:25,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:30:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:25,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:30:25,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:25,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:25,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823648050] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:25,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:25,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-16 14:30:25,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863993338] [2022-10-16 14:30:25,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:25,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:30:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:30:25,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:30:25,401 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:25,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:25,503 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-10-16 14:30:25,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:30:25,504 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 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 12 [2022-10-16 14:30:25,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:25,505 INFO L225 Difference]: With dead ends: 32 [2022-10-16 14:30:25,505 INFO L226 Difference]: Without dead ends: 31 [2022-10-16 14:30:25,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:30:25,507 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:25,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:25,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-16 14:30:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-10-16 14:30:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:25,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-10-16 14:30:25,515 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 12 [2022-10-16 14:30:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:25,516 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-10-16 14:30:25,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:25,516 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-10-16 14:30:25,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:30:25,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:25,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:30:25,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:25,732 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 [2022-10-16 14:30:25,733 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:25,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:25,734 INFO L85 PathProgramCache]: Analyzing trace with hash -625003925, now seen corresponding path program 1 times [2022-10-16 14:30:25,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:25,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40016569] [2022-10-16 14:30:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:25,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:25,873 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:25,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:25,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40016569] [2022-10-16 14:30:25,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40016569] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:25,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689428007] [2022-10-16 14:30:25,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:25,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:25,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:25,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:25,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:30:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:25,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:30:25,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:25,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:26,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689428007] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:26,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:26,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-10-16 14:30:26,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406999276] [2022-10-16 14:30:26,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:26,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:30:26,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:26,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:30:26,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:30:26,053 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 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) [2022-10-16 14:30:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:26,339 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-10-16 14:30:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 14:30:26,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 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 18 [2022-10-16 14:30:26,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:26,341 INFO L225 Difference]: With dead ends: 67 [2022-10-16 14:30:26,341 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 14:30:26,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:30:26,343 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 46 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:26,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 17 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 14:30:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2022-10-16 14:30:26,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 55 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2022-10-16 14:30:26,355 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 18 [2022-10-16 14:30:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:26,355 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2022-10-16 14:30:26,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 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) [2022-10-16 14:30:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2022-10-16 14:30:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 14:30:26,357 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:26,357 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:30:26,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:26,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:26,572 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:26,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:26,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1045996311, now seen corresponding path program 2 times [2022-10-16 14:30:26,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:26,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206691515] [2022-10-16 14:30:26,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:26,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:26,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206691515] [2022-10-16 14:30:26,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206691515] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008192312] [2022-10-16 14:30:26,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:30:26,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:26,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:26,764 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:26,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:30:26,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:30:26,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:26,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:30:26,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:27,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:27,426 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:27,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008192312] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:27,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:27,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-10-16 14:30:27,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161749616] [2022-10-16 14:30:27,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:27,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 14:30:27,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:27,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 14:30:27,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:30:27,429 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:28,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:28,559 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2022-10-16 14:30:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:30:28,560 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 states have internal predecessors, (76), 0 states have call successors, (0), 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 26 [2022-10-16 14:30:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:28,561 INFO L225 Difference]: With dead ends: 79 [2022-10-16 14:30:28,561 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 14:30:28,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1099, Invalid=3323, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 14:30:28,564 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 199 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:28,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 19 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:30:28,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 14:30:28,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2022-10-16 14:30:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 68 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:28,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2022-10-16 14:30:28,577 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 26 [2022-10-16 14:30:28,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:28,577 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2022-10-16 14:30:28,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:28,578 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2022-10-16 14:30:28,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:30:28,579 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:28,579 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:30:28,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:28,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:28,793 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:28,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:28,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1933852777, now seen corresponding path program 2 times [2022-10-16 14:30:28,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:28,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284089678] [2022-10-16 14:30:28,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:28,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:29,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:29,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284089678] [2022-10-16 14:30:29,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284089678] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:29,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881728752] [2022-10-16 14:30:29,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:30:29,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:29,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:29,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:29,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:30:29,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:30:29,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:29,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:30:29,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:29,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:29,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881728752] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:29,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:29,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2022-10-16 14:30:29,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723282297] [2022-10-16 14:30:29,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:29,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-16 14:30:29,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-16 14:30:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=709, Unknown=0, NotChecked=0, Total=930 [2022-10-16 14:30:29,612 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:30,036 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-10-16 14:30:30,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 14:30:30,037 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 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 27 [2022-10-16 14:30:30,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:30,038 INFO L225 Difference]: With dead ends: 70 [2022-10-16 14:30:30,038 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:30:30,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1201, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 14:30:30,040 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 134 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:30,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 18 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:30:30,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:30:30,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-10-16 14:30:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 68 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2022-10-16 14:30:30,051 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 27 [2022-10-16 14:30:30,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:30,051 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2022-10-16 14:30:30,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:30,052 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2022-10-16 14:30:30,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:30:30,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:30,053 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 1, 1, 1, 1, 1] [2022-10-16 14:30:30,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:30,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:30,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:30,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash -849972817, now seen corresponding path program 2 times [2022-10-16 14:30:30,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:30,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049810842] [2022-10-16 14:30:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:30,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:30,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:30,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049810842] [2022-10-16 14:30:30,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049810842] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:30,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213816050] [2022-10-16 14:30:30,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:30:30,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:30,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:30,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:30:30,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:30:30,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:30,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:30:30,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:31,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:31,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213816050] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:31,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:31,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 41 [2022-10-16 14:30:31,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667716147] [2022-10-16 14:30:31,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:31,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 14:30:31,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 14:30:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1422, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:30:31,502 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:33,369 INFO L93 Difference]: Finished difference Result 200 states and 220 transitions. [2022-10-16 14:30:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-10-16 14:30:33,370 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 0 states have call successors, (0), 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 53 [2022-10-16 14:30:33,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:33,371 INFO L225 Difference]: With dead ends: 200 [2022-10-16 14:30:33,372 INFO L226 Difference]: Without dead ends: 199 [2022-10-16 14:30:33,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1506, Invalid=6150, Unknown=0, NotChecked=0, Total=7656 [2022-10-16 14:30:33,377 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 188 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:33,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 44 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:30:33,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-16 14:30:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 161. [2022-10-16 14:30:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.259493670886076) internal successors, (199), 160 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:33,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 199 transitions. [2022-10-16 14:30:33,396 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 199 transitions. Word has length 53 [2022-10-16 14:30:33,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:33,397 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 199 transitions. [2022-10-16 14:30:33,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 199 transitions. [2022-10-16 14:30:33,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:30:33,398 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:33,399 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2022-10-16 14:30:33,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:33,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:33,614 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:33,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1953579241, now seen corresponding path program 3 times [2022-10-16 14:30:33,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:33,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070981799] [2022-10-16 14:30:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:33,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:34,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:34,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070981799] [2022-10-16 14:30:34,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070981799] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:34,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071710605] [2022-10-16 14:30:34,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:30:34,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:34,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:34,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:34,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:30:34,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:30:34,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:34,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:30:34,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:35,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:35,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071710605] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:35,824 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:35,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 66 [2022-10-16 14:30:35,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894455798] [2022-10-16 14:30:35,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:35,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 14:30:35,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:35,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 14:30:35,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=887, Invalid=3535, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 14:30:35,829 INFO L87 Difference]: Start difference. First operand 161 states and 199 transitions. Second operand has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:38,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:38,758 INFO L93 Difference]: Finished difference Result 171 states and 199 transitions. [2022-10-16 14:30:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:30:38,758 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 14:30:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:38,761 INFO L225 Difference]: With dead ends: 171 [2022-10-16 14:30:38,762 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 14:30:38,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3438 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2692, Invalid=8020, Unknown=0, NotChecked=0, Total=10712 [2022-10-16 14:30:38,766 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 605 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:38,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 27 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 14:30:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 14:30:38,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 161. [2022-10-16 14:30:38,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.1835443037974684) internal successors, (187), 160 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 187 transitions. [2022-10-16 14:30:38,786 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 187 transitions. Word has length 57 [2022-10-16 14:30:38,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:38,786 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 187 transitions. [2022-10-16 14:30:38,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 187 transitions. [2022-10-16 14:30:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 14:30:38,788 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:38,788 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1] [2022-10-16 14:30:38,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:39,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:39,003 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:39,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1957361943, now seen corresponding path program 3 times [2022-10-16 14:30:39,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:39,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609221809] [2022-10-16 14:30:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:39,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:39,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:39,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609221809] [2022-10-16 14:30:39,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609221809] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:39,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558270993] [2022-10-16 14:30:39,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:30:39,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:39,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:39,779 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:39,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:30:39,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:30:39,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:39,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:30:39,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-10-16 14:30:39,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:30:39,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558270993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:39,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:30:39,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [27] total 30 [2022-10-16 14:30:39,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091814677] [2022-10-16 14:30:39,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:39,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:30:39,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:39,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:30:39,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2022-10-16 14:30:39,896 INFO L87 Difference]: Start difference. First operand 161 states and 187 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2022-10-16 14:30:39,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:39,937 INFO L93 Difference]: Finished difference Result 161 states and 187 transitions. [2022-10-16 14:30:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:30:39,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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 66 [2022-10-16 14:30:39,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:39,941 INFO L225 Difference]: With dead ends: 161 [2022-10-16 14:30:39,941 INFO L226 Difference]: Without dead ends: 160 [2022-10-16 14:30:39,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:30:39,942 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:39,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:39,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-16 14:30:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-10-16 14:30:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0632911392405062) internal successors, (168), 159 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2022-10-16 14:30:39,975 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 66 [2022-10-16 14:30:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:39,977 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2022-10-16 14:30:39,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2022-10-16 14:30:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2022-10-16 14:30:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 14:30:39,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:39,986 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2022-10-16 14:30:40,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:40,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 14:30:40,202 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:30:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:40,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1337958889, now seen corresponding path program 4 times [2022-10-16 14:30:40,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:40,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814022722] [2022-10-16 14:30:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:40,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:42,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:42,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:42,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814022722] [2022-10-16 14:30:42,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814022722] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:42,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458814305] [2022-10-16 14:30:42,130 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:30:42,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:42,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:42,132 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:42,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:30:42,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:30:42,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:42,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 14:30:42,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:45,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:48,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:48,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458814305] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:48,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:48,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 138 [2022-10-16 14:30:48,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096206016] [2022-10-16 14:30:48,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:48,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2022-10-16 14:30:48,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:48,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2022-10-16 14:30:48,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3515, Invalid=15667, Unknown=0, NotChecked=0, Total=19182 [2022-10-16 14:30:48,847 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:31:01,631 INFO L93 Difference]: Finished difference Result 241 states and 278 transitions. [2022-10-16 14:31:01,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-10-16 14:31:01,632 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-10-16 14:31:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:31:01,633 INFO L225 Difference]: With dead ends: 241 [2022-10-16 14:31:01,634 INFO L226 Difference]: Without dead ends: 240 [2022-10-16 14:31:01,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13871 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=9639, Invalid=31773, Unknown=0, NotChecked=0, Total=41412 [2022-10-16 14:31:01,640 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2065 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5444 mSolverCounterSat, 1960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 7404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 5444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:31:01,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 54 Invalid, 7404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1960 Valid, 5444 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-16 14:31:01,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-10-16 14:31:01,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-10-16 14:31:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.0717299578059072) internal successors, (254), 238 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 254 transitions. [2022-10-16 14:31:01,662 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 254 transitions. Word has length 117 [2022-10-16 14:31:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:31:01,662 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 254 transitions. [2022-10-16 14:31:01,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 254 transitions. [2022-10-16 14:31:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-16 14:31:01,665 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:31:01,665 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-16 14:31:01,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:31:01,875 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,SelfDestructingSolverStorable12 [2022-10-16 14:31:01,876 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:31:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:31:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1070548331, now seen corresponding path program 3 times [2022-10-16 14:31:01,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:31:01,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787193360] [2022-10-16 14:31:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:31:01,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:31:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:31:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 0 proven. 2295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:04,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:31:04,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787193360] [2022-10-16 14:31:04,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787193360] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:31:04,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959753674] [2022-10-16 14:31:04,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:31:04,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:31:04,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:31:04,902 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) [2022-10-16 14:31:04,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:31:04,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-16 14:31:04,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:31:04,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:31:04,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:31:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 441 proven. 18 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2022-10-16 14:31:05,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:31:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 441 proven. 18 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2022-10-16 14:31:05,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959753674] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:31:05,764 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:31:05,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 7, 7] total 75 [2022-10-16 14:31:05,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671755804] [2022-10-16 14:31:05,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:31:05,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-10-16 14:31:05,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:31:05,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-10-16 14:31:05,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=5239, Unknown=0, NotChecked=0, Total=5700 [2022-10-16 14:31:05,767 INFO L87 Difference]: Start difference. First operand 239 states and 254 transitions. Second operand has 76 states, 75 states have (on average 2.6666666666666665) internal successors, (200), 76 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:18,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:31:18,523 INFO L93 Difference]: Finished difference Result 239 states and 254 transitions. [2022-10-16 14:31:18,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-10-16 14:31:18,524 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 2.6666666666666665) internal successors, (200), 76 states have internal predecessors, (200), 0 states have call successors, (0), 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 158 [2022-10-16 14:31:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:31:18,527 INFO L225 Difference]: With dead ends: 239 [2022-10-16 14:31:18,527 INFO L226 Difference]: Without dead ends: 238 [2022-10-16 14:31:18,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5972 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=5886, Invalid=23184, Unknown=0, NotChecked=0, Total=29070 [2022-10-16 14:31:18,531 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1008 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:31:18,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 51 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 14:31:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-10-16 14:31:18,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-10-16 14:31:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.0042194092827004) internal successors, (238), 237 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:18,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 238 transitions. [2022-10-16 14:31:18,582 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 238 transitions. Word has length 158 [2022-10-16 14:31:18,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:31:18,583 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 238 transitions. [2022-10-16 14:31:18,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 2.6666666666666665) internal successors, (200), 76 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 238 transitions. [2022-10-16 14:31:18,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-16 14:31:18,588 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:31:18,589 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1] [2022-10-16 14:31:18,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:31:18,803 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,SelfDestructingSolverStorable13 [2022-10-16 14:31:18,803 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:31:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:31:18,804 INFO L85 PathProgramCache]: Analyzing trace with hash 688776169, now seen corresponding path program 5 times [2022-10-16 14:31:18,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:31:18,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878179159] [2022-10-16 14:31:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:31:18,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:31:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:31:25,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:25,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:31:25,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878179159] [2022-10-16 14:31:25,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878179159] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:31:25,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074160970] [2022-10-16 14:31:25,450 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:31:25,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:31:25,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:31:25,454 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) [2022-10-16 14:31:25,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:31:25,660 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-10-16 14:31:25,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:31:25,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 95 conjunts are in the unsatisfiable core [2022-10-16 14:31:25,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:31:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:37,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:31:52,601 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:52,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074160970] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:31:52,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:31:52,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 282 [2022-10-16 14:31:52,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563972696] [2022-10-16 14:31:52,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:31:52,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 283 states [2022-10-16 14:31:52,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:31:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 283 interpolants. [2022-10-16 14:31:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13955, Invalid=65851, Unknown=0, NotChecked=0, Total=79806 [2022-10-16 14:31:52,614 INFO L87 Difference]: Start difference. First operand 238 states and 238 transitions. Second operand has 283 states, 282 states have (on average 2.5106382978723403) internal successors, (708), 283 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:33:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:33:04,289 INFO L93 Difference]: Finished difference Result 479 states and 526 transitions. [2022-10-16 14:33:04,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-10-16 14:33:04,290 INFO L78 Accepts]: Start accepts. Automaton has has 283 states, 282 states have (on average 2.5106382978723403) internal successors, (708), 283 states have internal predecessors, (708), 0 states have call successors, (0), 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 237 [2022-10-16 14:33:04,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:33:04,293 INFO L225 Difference]: With dead ends: 479 [2022-10-16 14:33:04,293 INFO L226 Difference]: Without dead ends: 478 [2022-10-16 14:33:04,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 417 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60201 ImplicationChecksByTransitivity, 86.5s TimeCoverageRelationStatistics Valid=39793, Invalid=135349, Unknown=0, NotChecked=0, Total=175142 [2022-10-16 14:33:04,304 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8634 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 20539 mSolverCounterSat, 5686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8634 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 26225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5686 IncrementalHoareTripleChecker+Valid, 20539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:33:04,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8634 Valid, 99 Invalid, 26225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5686 Valid, 20539 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-10-16 14:33:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-10-16 14:33:04,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2022-10-16 14:33:04,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 1.0020964360587001) internal successors, (478), 477 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:33:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 478 transitions. [2022-10-16 14:33:04,357 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 478 transitions. Word has length 237 [2022-10-16 14:33:04,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:33:04,357 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 478 transitions. [2022-10-16 14:33:04,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 283 states, 282 states have (on average 2.5106382978723403) internal successors, (708), 283 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:33:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 478 transitions. [2022-10-16 14:33:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-10-16 14:33:04,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:33:04,368 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1] [2022-10-16 14:33:04,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:33:04,584 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,SelfDestructingSolverStorable14 [2022-10-16 14:33:04,585 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:33:04,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:33:04,586 INFO L85 PathProgramCache]: Analyzing trace with hash -311400471, now seen corresponding path program 6 times [2022-10-16 14:33:04,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:33:04,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015344951] [2022-10-16 14:33:04,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:33:04,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:33:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:33:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:33:32,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:33:32,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015344951] [2022-10-16 14:33:32,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015344951] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:33:32,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80722751] [2022-10-16 14:33:32,483 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:33:32,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:33:32,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:33:32,484 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) [2022-10-16 14:33:32,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:33:33,012 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-10-16 14:33:33,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:33:33,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 191 conjunts are in the unsatisfiable core [2022-10-16 14:33:33,030 INFO L286 TraceCheckSpWp]: Computing forward predicates...