/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-cav19/array_tiling_poly6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 09:54:59,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 09:54:59,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 09:54:59,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 09:54:59,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 09:54:59,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 09:54:59,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 09:54:59,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 09:54:59,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 09:54:59,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 09:54:59,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 09:54:59,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 09:54:59,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 09:54:59,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 09:54:59,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 09:54:59,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 09:54:59,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 09:54:59,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 09:54:59,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 09:54:59,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 09:54:59,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 09:54:59,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 09:54:59,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 09:54:59,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 09:54:59,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 09:54:59,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 09:54:59,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 09:54:59,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 09:54:59,749 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 09:54:59,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 09:54:59,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 09:54:59,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 09:54:59,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 09:54:59,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 09:54:59,805 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 09:54:59,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 09:54:59,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 09:54:59,809 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 09:54:59,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 09:54:59,810 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 09:54:59,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 09:54:59,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 09:54:59,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 09:54:59,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 09:54:59,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 09:54:59,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 09:54:59,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 09:54:59,812 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 09:54:59,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 09:54:59,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 09:54:59,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 09:54:59,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 09:54:59,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 09:54:59,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 09:54:59,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 09:54:59,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:54:59,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 09:54:59,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 09:54:59,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 09:54:59,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 09:54:59,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 09:54:59,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 09:54:59,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 09:55:00,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 09:55:00,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 09:55:00,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 09:55:00,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 09:55:00,264 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 09:55:00,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_tiling_poly6.c [2022-10-16 09:55:00,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c7713d8/ba09a950147b4edfbcdd9892926026af/FLAG9700ca1d9 [2022-10-16 09:55:00,986 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 09:55:00,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_tiling_poly6.c [2022-10-16 09:55:00,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c7713d8/ba09a950147b4edfbcdd9892926026af/FLAG9700ca1d9 [2022-10-16 09:55:01,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c7713d8/ba09a950147b4edfbcdd9892926026af [2022-10-16 09:55:01,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 09:55:01,380 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 09:55:01,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 09:55:01,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 09:55:01,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 09:55:01,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bab83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01, skipping insertion in model container [2022-10-16 09:55:01,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 09:55:01,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 09:55:01,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_tiling_poly6.c[409,422] [2022-10-16 09:55:01,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:55:01,592 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 09:55:01,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_tiling_poly6.c[409,422] [2022-10-16 09:55:01,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:55:01,633 INFO L208 MainTranslator]: Completed translation [2022-10-16 09:55:01,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01 WrapperNode [2022-10-16 09:55:01,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 09:55:01,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 09:55:01,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 09:55:01,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 09:55:01,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,675 INFO L138 Inliner]: procedures = 15, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2022-10-16 09:55:01,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 09:55:01,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 09:55:01,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 09:55:01,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 09:55:01,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,702 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 09:55:01,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 09:55:01,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 09:55:01,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 09:55:01,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (1/1) ... [2022-10-16 09:55:01,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:55:01,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:01,741 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 09:55:01,748 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 09:55:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 09:55:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 09:55:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 09:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 09:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 09:55:01,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 09:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 09:55:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 09:55:01,871 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 09:55:01,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 09:55:02,135 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 09:55:02,144 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 09:55:02,145 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 09:55:02,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:02 BoogieIcfgContainer [2022-10-16 09:55:02,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 09:55:02,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 09:55:02,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 09:55:02,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 09:55:02,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:55:01" (1/3) ... [2022-10-16 09:55:02,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b491e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:02, skipping insertion in model container [2022-10-16 09:55:02,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:01" (2/3) ... [2022-10-16 09:55:02,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b491e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:02, skipping insertion in model container [2022-10-16 09:55:02,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:02" (3/3) ... [2022-10-16 09:55:02,159 INFO L112 eAbstractionObserver]: Analyzing ICFG array_tiling_poly6.c [2022-10-16 09:55:02,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 09:55:02,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 09:55:02,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 09:55:02,279 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;@2c2d305, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 09:55:02,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 09:55:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 50 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 09:55:02,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:02,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 09:55:02,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:02,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash 889508872, now seen corresponding path program 1 times [2022-10-16 09:55:02,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:02,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856090919] [2022-10-16 09:55:02,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:02,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:02,486 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 09:55:02,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:02,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856090919] [2022-10-16 09:55:02,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856090919] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:02,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:02,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 09:55:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893246751] [2022-10-16 09:55:02,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:02,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 09:55:02,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:02,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 09:55:02,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 09:55:02,536 INFO L87 Difference]: Start difference. First operand has 51 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 50 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 09:55:02,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:02,559 INFO L93 Difference]: Finished difference Result 97 states and 112 transitions. [2022-10-16 09:55:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 09:55:02,562 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 09:55:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:02,572 INFO L225 Difference]: With dead ends: 97 [2022-10-16 09:55:02,573 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 09:55:02,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 09:55:02,582 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:02,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:02,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 09:55:02,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 09:55:02,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 43 states have internal predecessors, (46), 0 states have call successors, (0), 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 09:55:02,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2022-10-16 09:55:02,626 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 6 [2022-10-16 09:55:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:02,626 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2022-10-16 09:55:02,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 09:55:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2022-10-16 09:55:02,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 09:55:02,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:02,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 09:55:02,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 09:55:02,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:02,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash 889568454, now seen corresponding path program 1 times [2022-10-16 09:55:02,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:02,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334725935] [2022-10-16 09:55:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:02,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:02,725 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 09:55:02,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:02,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334725935] [2022-10-16 09:55:02,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334725935] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:02,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:02,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 09:55:02,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403382782] [2022-10-16 09:55:02,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:02,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 09:55:02,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:02,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 09:55:02,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 09:55:02,731 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. 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 09:55:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:02,868 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2022-10-16 09:55:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 09:55:02,869 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 09:55:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:02,871 INFO L225 Difference]: With dead ends: 84 [2022-10-16 09:55:02,872 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 09:55:02,872 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 09:55:02,874 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:02,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 39 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 09:55:02,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 52. [2022-10-16 09:55:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 38 states have (on average 1.4736842105263157) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 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 09:55:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-10-16 09:55:02,887 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 6 [2022-10-16 09:55:02,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:02,888 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-10-16 09:55:02,888 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 09:55:02,888 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-10-16 09:55:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 09:55:02,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:02,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:02,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 09:55:02,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:02,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1937620512, now seen corresponding path program 1 times [2022-10-16 09:55:02,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:02,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544276823] [2022-10-16 09:55:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:02,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:02,916 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:02,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154330075] [2022-10-16 09:55:02,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:02,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:02,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:02,919 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 09:55:02,945 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 09:55:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:02,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 09:55:02,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:03,063 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 09:55:03,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:03,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:03,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544276823] [2022-10-16 09:55:03,064 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:55:03,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154330075] [2022-10-16 09:55:03,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154330075] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:03,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:03,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 09:55:03,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595155288] [2022-10-16 09:55:03,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:03,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 09:55:03,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:03,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 09:55:03,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 09:55:03,068 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 09:55:03,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:03,245 INFO L93 Difference]: Finished difference Result 104 states and 110 transitions. [2022-10-16 09:55:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 09:55:03,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-10-16 09:55:03,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:03,248 INFO L225 Difference]: With dead ends: 104 [2022-10-16 09:55:03,248 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 09:55:03,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 09:55:03,250 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 37 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:03,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 63 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 09:55:03,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 52. [2022-10-16 09:55:03,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 51 states have internal predecessors, (54), 0 states have call successors, (0), 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 09:55:03,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2022-10-16 09:55:03,261 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 10 [2022-10-16 09:55:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:03,262 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2022-10-16 09:55:03,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 09:55:03,262 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-10-16 09:55:03,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 09:55:03,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:03,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:03,306 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 09:55:03,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:03,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:03,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1477969325, now seen corresponding path program 1 times [2022-10-16 09:55:03,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:03,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830446975] [2022-10-16 09:55:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:03,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:03,518 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:03,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506196546] [2022-10-16 09:55:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:03,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:03,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:03,525 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 09:55:03,543 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 09:55:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:03,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 09:55:03,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:03,621 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 09:55:03,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:03,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:03,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830446975] [2022-10-16 09:55:03,623 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:55:03,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506196546] [2022-10-16 09:55:03,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506196546] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:03,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:03,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:03,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890791060] [2022-10-16 09:55:03,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:03,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:03,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:03,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:03,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:03,635 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:03,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:03,784 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2022-10-16 09:55:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 09:55:03,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 09:55:03,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:03,788 INFO L225 Difference]: With dead ends: 76 [2022-10-16 09:55:03,788 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 09:55:03,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 09:55:03,792 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:03,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 61 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:03,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 09:55:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2022-10-16 09:55:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:03,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-10-16 09:55:03,813 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 13 [2022-10-16 09:55:03,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:03,814 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-10-16 09:55:03,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:03,814 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-10-16 09:55:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 09:55:03,815 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:03,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:03,849 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 09:55:04,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 09:55:04,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:04,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1427591246, now seen corresponding path program 1 times [2022-10-16 09:55:04,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:04,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919154370] [2022-10-16 09:55:04,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:04,035 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:04,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085217960] [2022-10-16 09:55:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:04,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:04,038 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 09:55:04,055 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 09:55:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:04,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 09:55:04,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:04,133 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 09:55:04,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:04,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:04,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919154370] [2022-10-16 09:55:04,134 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:55:04,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085217960] [2022-10-16 09:55:04,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085217960] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:04,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:04,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400845740] [2022-10-16 09:55:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:04,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:04,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:04,138 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:04,209 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2022-10-16 09:55:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:04,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 09:55:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:04,211 INFO L225 Difference]: With dead ends: 73 [2022-10-16 09:55:04,211 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 09:55:04,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 09:55:04,213 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:04,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 45 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 09:55:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2022-10-16 09:55:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 51 states have internal predecessors, (54), 0 states have call successors, (0), 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 09:55:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2022-10-16 09:55:04,222 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 14 [2022-10-16 09:55:04,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:04,222 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2022-10-16 09:55:04,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:04,223 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-10-16 09:55:04,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 09:55:04,224 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:04,224 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:04,261 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 09:55:04,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:04,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:04,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:04,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1820621488, now seen corresponding path program 1 times [2022-10-16 09:55:04,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:04,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964157989] [2022-10-16 09:55:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:04,466 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:04,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948018569] [2022-10-16 09:55:04,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:04,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:04,475 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 09:55:04,491 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 09:55:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:04,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 09:55:04,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:04,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:04,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:04,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964157989] [2022-10-16 09:55:04,565 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:55:04,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948018569] [2022-10-16 09:55:04,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948018569] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:04,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:04,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:04,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506378783] [2022-10-16 09:55:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:04,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:04,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:04,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:04,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:04,572 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:04,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:04,644 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2022-10-16 09:55:04,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:04,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 09:55:04,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:04,649 INFO L225 Difference]: With dead ends: 60 [2022-10-16 09:55:04,649 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 09:55:04,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 09:55:04,652 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 30 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:04,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 44 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:04,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 09:55:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2022-10-16 09:55:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 50 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:04,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2022-10-16 09:55:04,677 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 16 [2022-10-16 09:55:04,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:04,677 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2022-10-16 09:55:04,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2022-10-16 09:55:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 09:55:04,680 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:04,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:04,713 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 09:55:04,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:04,881 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:04,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1565562130, now seen corresponding path program 1 times [2022-10-16 09:55:04,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:04,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124817065] [2022-10-16 09:55:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:04,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:04,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595606231] [2022-10-16 09:55:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:04,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:04,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:04,927 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 09:55:04,940 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 09:55:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:04,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 09:55:04,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:05,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:05,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:05,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124817065] [2022-10-16 09:55:05,058 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:55:05,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595606231] [2022-10-16 09:55:05,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595606231] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:05,059 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:55:05,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 09:55:05,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167711254] [2022-10-16 09:55:05,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:05,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 09:55:05,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:05,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 09:55:05,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 09:55:05,061 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 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 09:55:05,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:05,224 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2022-10-16 09:55:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 09:55:05,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 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 18 [2022-10-16 09:55:05,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:05,225 INFO L225 Difference]: With dead ends: 82 [2022-10-16 09:55:05,225 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 09:55:05,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-10-16 09:55:05,226 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 112 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:05,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 62 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:05,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 09:55:05,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 46. [2022-10-16 09:55:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 38 states have (on average 1.263157894736842) internal successors, (48), 45 states have internal predecessors, (48), 0 states have call successors, (0), 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 09:55:05,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2022-10-16 09:55:05,232 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 18 [2022-10-16 09:55:05,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:05,232 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2022-10-16 09:55:05,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 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 09:55:05,232 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2022-10-16 09:55:05,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 09:55:05,233 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:05,233 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:05,271 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 09:55:05,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:05,434 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:05,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:05,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1266655092, now seen corresponding path program 1 times [2022-10-16 09:55:05,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:05,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693353451] [2022-10-16 09:55:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:05,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:05,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:05,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871273030] [2022-10-16 09:55:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:05,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:05,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:05,459 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 09:55:05,464 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 09:55:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:05,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 09:55:05,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:05,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:05,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:05,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:05,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693353451] [2022-10-16 09:55:05,714 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:55:05,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871273030] [2022-10-16 09:55:05,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871273030] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:05,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:55:05,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 09:55:05,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061381722] [2022-10-16 09:55:05,716 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:05,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 09:55:05,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:05,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 09:55:05,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 09:55:05,718 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:55:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:06,012 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2022-10-16 09:55:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 09:55:06,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 09:55:06,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:06,013 INFO L225 Difference]: With dead ends: 87 [2022-10-16 09:55:06,013 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 09:55:06,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-10-16 09:55:06,015 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 66 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:06,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 66 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:55:06,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 09:55:06,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2022-10-16 09:55:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 58 states have (on average 1.206896551724138) internal successors, (70), 65 states have internal predecessors, (70), 0 states have call successors, (0), 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 09:55:06,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2022-10-16 09:55:06,022 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 20 [2022-10-16 09:55:06,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:06,023 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2022-10-16 09:55:06,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:55:06,023 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2022-10-16 09:55:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 09:55:06,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:06,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:06,057 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 09:55:06,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:06,237 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:06,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1228667594, now seen corresponding path program 1 times [2022-10-16 09:55:06,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:06,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517450764] [2022-10-16 09:55:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:06,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:06,268 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:06,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851064388] [2022-10-16 09:55:06,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:06,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:06,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:06,270 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 09:55:06,276 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 09:55:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:06,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 09:55:06,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:06,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:06,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:06,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:06,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517450764] [2022-10-16 09:55:06,483 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:55:06,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851064388] [2022-10-16 09:55:06,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851064388] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:06,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:55:06,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-10-16 09:55:06,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142289242] [2022-10-16 09:55:06,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:06,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 09:55:06,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:06,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 09:55:06,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 09:55:06,486 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 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 09:55:06,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:06,700 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2022-10-16 09:55:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 09:55:06,701 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 09:55:06,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:06,702 INFO L225 Difference]: With dead ends: 109 [2022-10-16 09:55:06,703 INFO L226 Difference]: Without dead ends: 84 [2022-10-16 09:55:06,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-10-16 09:55:06,708 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 256 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:06,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 49 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:06,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-16 09:55:06,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2022-10-16 09:55:06,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 65 states have internal predecessors, (69), 0 states have call successors, (0), 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 09:55:06,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2022-10-16 09:55:06,725 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 20 [2022-10-16 09:55:06,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:06,725 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2022-10-16 09:55:06,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 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 09:55:06,726 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2022-10-16 09:55:06,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 09:55:06,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:06,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:06,765 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 09:55:06,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:06,941 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:55:06,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:06,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1405413580, now seen corresponding path program 2 times [2022-10-16 09:55:06,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:06,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155778193] [2022-10-16 09:55:06,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:06,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:06,957 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:55:06,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153457003] [2022-10-16 09:55:06,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:55:06,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:06,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:06,959 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 09:55:06,982 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 09:55:07,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:55:07,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:07,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 09:55:07,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:07,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-10-16 09:55:07,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 87 [2022-10-16 09:55:07,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-10-16 09:55:07,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 09:55:07,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 09:55:07,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 102 [2022-10-16 09:55:07,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 09:55:07,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 09:55:07,437 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 18 [2022-10-16 09:55:32,001 WARN L233 SmtUtils]: Spent 16.09s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:55:54,619 WARN L233 SmtUtils]: Spent 16.06s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:55:54,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 198 [2022-10-16 09:55:54,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 09:55:55,691 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:55:55,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 199 treesize of output 199 [2022-10-16 09:55:56,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:55:56,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:56:00,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-10-16 09:56:00,250 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:56:00,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-10-16 09:56:01,422 INFO L356 Elim1Store]: treesize reduction 23, result has 39.5 percent of original size [2022-10-16 09:56:01,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 79 [2022-10-16 09:56:01,628 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:56:01,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 95 [2022-10-16 09:56:26,863 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 42 DAG size of output: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:56:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:27,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:27,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155778193] [2022-10-16 09:56:27,184 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:27,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153457003] [2022-10-16 09:56:27,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153457003] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:56:27,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:56:27,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2022-10-16 09:56:27,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577130192] [2022-10-16 09:56:27,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:56:27,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 09:56:27,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:27,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 09:56:27,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=247, Unknown=8, NotChecked=0, Total=342 [2022-10-16 09:56:27,186 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:35,976 WARN L233 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:56:48,161 WARN L233 SmtUtils]: Spent 12.08s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:56:48,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:48,559 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2022-10-16 09:56:48,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 09:56:48,560 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 09:56:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:48,561 INFO L225 Difference]: With dead ends: 77 [2022-10-16 09:56:48,561 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 09:56:48,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 89.5s TimeCoverageRelationStatistics Valid=141, Invalid=403, Unknown=8, NotChecked=0, Total=552 [2022-10-16 09:56:48,563 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 91 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 224 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:48,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 143 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 224 Unchecked, 0.2s Time] [2022-10-16 09:56:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 09:56:48,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2022-10-16 09:56:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 67 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:56:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2022-10-16 09:56:48,572 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 30 [2022-10-16 09:56:48,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:48,572 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2022-10-16 09:56:48,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2022-10-16 09:56:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 09:56:48,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:48,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:48,607 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 09:56:48,774 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,SelfDestructingSolverStorable9 [2022-10-16 09:56:48,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:48,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:48,776 INFO L85 PathProgramCache]: Analyzing trace with hash -618147935, now seen corresponding path program 1 times [2022-10-16 09:56:48,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:48,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698456813] [2022-10-16 09:56:48,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:48,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:48,789 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:48,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005399137] [2022-10-16 09:56:48,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:48,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:48,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:48,791 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 09:56:48,801 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 09:56:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:48,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 09:56:48,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:48,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-10-16 09:56:48,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 87 [2022-10-16 09:56:48,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 11 [2022-10-16 09:56:48,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 09:56:48,999 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:56:48,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 29 [2022-10-16 09:56:49,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:49,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:56:49,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-10-16 09:56:49,528 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:56:49,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-10-16 09:56:49,828 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-10-16 09:56:49,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 246 treesize of output 239 [2022-10-16 09:56:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:49,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:49,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698456813] [2022-10-16 09:56:49,904 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:49,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005399137] [2022-10-16 09:56:49,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005399137] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:56:49,904 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:56:49,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2022-10-16 09:56:49,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20417206] [2022-10-16 09:56:49,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:56:49,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 09:56:49,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:49,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 09:56:49,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-10-16 09:56:49,907 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 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 09:56:50,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:50,861 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2022-10-16 09:56:50,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 09:56:50,861 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 09:56:50,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:50,862 INFO L225 Difference]: With dead ends: 108 [2022-10-16 09:56:50,862 INFO L226 Difference]: Without dead ends: 107 [2022-10-16 09:56:50,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-10-16 09:56:50,864 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 159 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:50,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 141 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 198 Invalid, 0 Unknown, 101 Unchecked, 0.3s Time] [2022-10-16 09:56:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-16 09:56:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 69. [2022-10-16 09:56:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.180327868852459) 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 09:56:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2022-10-16 09:56:50,873 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 31 [2022-10-16 09:56:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:50,873 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2022-10-16 09:56:50,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 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 09:56:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2022-10-16 09:56:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 09:56:50,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:50,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:50,912 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 09:56:51,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:51,090 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:51,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:51,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1334675901, now seen corresponding path program 1 times [2022-10-16 09:56:51,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:51,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7500436] [2022-10-16 09:56:51,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:51,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:51,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:51,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872162456] [2022-10-16 09:56:51,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:51,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:51,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:51,114 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 09:56:51,116 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 09:56:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:51,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 09:56:51,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 09:56:51,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:56:51,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:51,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7500436] [2022-10-16 09:56:51,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:51,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872162456] [2022-10-16 09:56:51,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872162456] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:56:51,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:56:51,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:56:51,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178683622] [2022-10-16 09:56:51,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:56:51,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:56:51,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:51,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:56:51,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:56:51,184 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:51,260 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2022-10-16 09:56:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 09:56:51,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 09:56:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:51,261 INFO L225 Difference]: With dead ends: 82 [2022-10-16 09:56:51,261 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 09:56:51,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 09:56:51,262 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:51,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 51 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:56:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 09:56:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2022-10-16 09:56:51,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 70 states have internal predecessors, (74), 0 states have call successors, (0), 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 09:56:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2022-10-16 09:56:51,271 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 33 [2022-10-16 09:56:51,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:51,272 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2022-10-16 09:56:51,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:51,272 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2022-10-16 09:56:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 09:56:51,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:51,273 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:51,309 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 09:56:51,488 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,SelfDestructingSolverStorable11 [2022-10-16 09:56:51,489 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:51,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:51,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1574720120, now seen corresponding path program 1 times [2022-10-16 09:56:51,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:51,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500055277] [2022-10-16 09:56:51,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:51,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:51,502 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:51,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86440104] [2022-10-16 09:56:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:51,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:51,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:51,504 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 09:56:51,516 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 09:56:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:51,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 09:56:51,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 09:56:51,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:56:51,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:51,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500055277] [2022-10-16 09:56:51,575 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:51,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86440104] [2022-10-16 09:56:51,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86440104] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:56:51,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:56:51,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:56:51,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760579081] [2022-10-16 09:56:51,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:56:51,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:56:51,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:51,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:56:51,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:56:51,577 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:51,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:51,639 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2022-10-16 09:56:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:56:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 09:56:51,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:51,640 INFO L225 Difference]: With dead ends: 79 [2022-10-16 09:56:51,640 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 09:56:51,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 09:56:51,641 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:51,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 39 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:56:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 09:56:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2022-10-16 09:56:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 69 states have internal predecessors, (73), 0 states have call successors, (0), 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 09:56:51,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2022-10-16 09:56:51,651 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 34 [2022-10-16 09:56:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:51,651 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2022-10-16 09:56:51,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:51,651 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2022-10-16 09:56:51,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 09:56:51,652 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:51,652 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:51,679 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 09:56:51,865 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,SelfDestructingSolverStorable12 [2022-10-16 09:56:51,866 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:51,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:51,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1477549594, now seen corresponding path program 1 times [2022-10-16 09:56:51,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:51,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936071864] [2022-10-16 09:56:51,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:51,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:51,879 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:51,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795646139] [2022-10-16 09:56:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:51,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:51,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:51,881 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 09:56:51,888 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 09:56:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:51,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 09:56:51,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 09:56:51,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:56:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 09:56:52,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:52,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936071864] [2022-10-16 09:56:52,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:52,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795646139] [2022-10-16 09:56:52,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795646139] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:56:52,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:56:52,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 09:56:52,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699809276] [2022-10-16 09:56:52,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:56:52,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 09:56:52,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:52,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 09:56:52,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 09:56:52,040 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:56:52,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:52,248 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2022-10-16 09:56:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 09:56:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 36 [2022-10-16 09:56:52,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:52,249 INFO L225 Difference]: With dead ends: 95 [2022-10-16 09:56:52,249 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 09:56:52,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-10-16 09:56:52,255 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 50 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:52,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 68 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:56:52,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 09:56:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2022-10-16 09:56:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.1891891891891893) internal successors, (88), 80 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2022-10-16 09:56:52,273 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 36 [2022-10-16 09:56:52,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:52,276 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2022-10-16 09:56:52,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:56:52,276 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2022-10-16 09:56:52,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 09:56:52,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:52,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:52,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 09:56:52,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 09:56:52,478 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1709012548, now seen corresponding path program 1 times [2022-10-16 09:56:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:52,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067680712] [2022-10-16 09:56:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:52,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:52,504 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:52,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732057981] [2022-10-16 09:56:52,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:52,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:52,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:52,507 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:56:52,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 09:56:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:52,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 09:56:52,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:52,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 09:56:52,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2022-10-16 09:56:52,708 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-10-16 09:56:52,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 99 [2022-10-16 09:56:52,782 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 09:56:52,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 29 [2022-10-16 09:56:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:52,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:56:53,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-10-16 09:56:53,235 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:56:53,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-10-16 09:56:53,278 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:56:53,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 62 [2022-10-16 09:56:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:53,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:53,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067680712] [2022-10-16 09:56:53,566 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:53,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732057981] [2022-10-16 09:56:53,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732057981] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:56:53,567 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:56:53,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2022-10-16 09:56:53,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789149766] [2022-10-16 09:56:53,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:56:53,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 09:56:53,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:53,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 09:56:53,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-10-16 09:56:53,569 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 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 09:56:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:54,561 INFO L93 Difference]: Finished difference Result 163 states and 173 transitions. [2022-10-16 09:56:54,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 09:56:54,561 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 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 38 [2022-10-16 09:56:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:54,563 INFO L225 Difference]: With dead ends: 163 [2022-10-16 09:56:54,563 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 09:56:54,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2022-10-16 09:56:54,566 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 152 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:54,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 252 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 09:56:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 09:56:54,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 94. [2022-10-16 09:56:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 93 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:54,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2022-10-16 09:56:54,583 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 38 [2022-10-16 09:56:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:54,583 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2022-10-16 09:56:54,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 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 09:56:54,584 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2022-10-16 09:56:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 09:56:54,586 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:54,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:54,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 09:56:54,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 09:56:54,799 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:54,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1439781351, now seen corresponding path program 1 times [2022-10-16 09:56:54,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:54,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850764620] [2022-10-16 09:56:54,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:54,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:54,812 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:54,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383997464] [2022-10-16 09:56:54,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:54,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:54,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:54,814 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:56:54,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 09:56:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:54,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 09:56:54,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:54,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 09:56:54,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2022-10-16 09:56:54,980 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-10-16 09:56:54,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 99 [2022-10-16 09:56:55,003 INFO L356 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2022-10-16 09:56:55,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 28 [2022-10-16 09:56:55,050 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 09:56:55,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 29 [2022-10-16 09:56:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:55,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:56:55,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-10-16 09:56:55,744 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:56:55,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-10-16 09:56:55,924 INFO L356 Elim1Store]: treesize reduction 34, result has 19.0 percent of original size [2022-10-16 09:56:55,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 49 [2022-10-16 09:56:56,022 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-10-16 09:56:56,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 22 [2022-10-16 09:56:56,176 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:56,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:56,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850764620] [2022-10-16 09:56:56,176 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:56,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383997464] [2022-10-16 09:56:56,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383997464] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:56:56,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:56:56,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2022-10-16 09:56:56,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743882852] [2022-10-16 09:56:56,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:56:56,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 09:56:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:56,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 09:56:56,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-10-16 09:56:56,179 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand has 19 states, 18 states have (on average 4.166666666666667) internal successors, (75), 19 states have internal predecessors, (75), 0 states have call successors, (0), 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 09:56:57,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:57,565 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2022-10-16 09:56:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 09:56:57,565 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.166666666666667) internal successors, (75), 19 states have internal predecessors, (75), 0 states have call successors, (0), 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 39 [2022-10-16 09:56:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:57,566 INFO L225 Difference]: With dead ends: 143 [2022-10-16 09:56:57,567 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 09:56:57,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2022-10-16 09:56:57,568 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 158 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:57,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 187 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 09:56:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 09:56:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 94. [2022-10-16 09:56:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.160919540229885) internal successors, (101), 93 states have internal predecessors, (101), 0 states have call successors, (0), 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 09:56:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 101 transitions. [2022-10-16 09:56:57,579 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 101 transitions. Word has length 39 [2022-10-16 09:56:57,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:57,579 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 101 transitions. [2022-10-16 09:56:57,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.166666666666667) internal successors, (75), 19 states have internal predecessors, (75), 0 states have call successors, (0), 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 09:56:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 101 transitions. [2022-10-16 09:56:57,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 09:56:57,586 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:57,586 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2022-10-16 09:56:57,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 09:56:57,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:57,797 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:57,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:57,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1224530888, now seen corresponding path program 2 times [2022-10-16 09:56:57,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:57,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999333996] [2022-10-16 09:56:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:57,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:57,808 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:57,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645724916] [2022-10-16 09:56:57,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:56:57,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:57,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:57,810 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:56:57,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 09:56:57,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:56:57,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:56:57,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 09:56:57,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:57,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:56:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:58,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:58,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999333996] [2022-10-16 09:56:58,178 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:58,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645724916] [2022-10-16 09:56:58,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645724916] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:56:58,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:56:58,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2022-10-16 09:56:58,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315804498] [2022-10-16 09:56:58,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:56:58,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 09:56:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 09:56:58,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-10-16 09:56:58,181 INFO L87 Difference]: Start difference. First operand 94 states and 101 transitions. Second operand has 16 states, 15 states have (on average 5.133333333333334) internal successors, (77), 16 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:58,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:58,774 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2022-10-16 09:56:58,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 09:56:58,774 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.133333333333334) internal successors, (77), 16 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 09:56:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:58,778 INFO L225 Difference]: With dead ends: 147 [2022-10-16 09:56:58,778 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 09:56:58,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2022-10-16 09:56:58,779 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 141 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:58,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 129 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 09:56:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 09:56:58,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 134. [2022-10-16 09:56:58,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 127 states have (on average 1.141732283464567) internal successors, (145), 133 states have internal predecessors, (145), 0 states have call successors, (0), 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 09:56:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 145 transitions. [2022-10-16 09:56:58,793 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 145 transitions. Word has length 40 [2022-10-16 09:56:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:58,793 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 145 transitions. [2022-10-16 09:56:58,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.133333333333334) internal successors, (77), 16 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:56:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 145 transitions. [2022-10-16 09:56:58,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 09:56:58,794 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:58,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:58,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 09:56:59,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 09:56:59,001 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:59,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:59,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1946198529, now seen corresponding path program 1 times [2022-10-16 09:56:59,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:59,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292385158] [2022-10-16 09:56:59,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:59,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:59,014 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:59,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646686314] [2022-10-16 09:56:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:59,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:59,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:59,016 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:56:59,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 09:56:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:56:59,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 09:56:59,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:56:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:59,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:56:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:56:59,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:56:59,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292385158] [2022-10-16 09:56:59,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:56:59,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646686314] [2022-10-16 09:56:59,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646686314] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:56:59,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:56:59,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 09:56:59,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778387128] [2022-10-16 09:56:59,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:56:59,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 09:56:59,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:56:59,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 09:56:59,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 09:56:59,273 INFO L87 Difference]: Start difference. First operand 134 states and 145 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:56:59,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:56:59,548 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2022-10-16 09:56:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 09:56:59,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 41 [2022-10-16 09:56:59,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:56:59,553 INFO L225 Difference]: With dead ends: 152 [2022-10-16 09:56:59,553 INFO L226 Difference]: Without dead ends: 143 [2022-10-16 09:56:59,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 66 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-10-16 09:56:59,555 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 116 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:56:59,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 84 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:56:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-10-16 09:56:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 134. [2022-10-16 09:56:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 127 states have (on average 1.125984251968504) internal successors, (143), 133 states have internal predecessors, (143), 0 states have call successors, (0), 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 09:56:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 143 transitions. [2022-10-16 09:56:59,566 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 143 transitions. Word has length 41 [2022-10-16 09:56:59,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:56:59,567 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 143 transitions. [2022-10-16 09:56:59,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:56:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 143 transitions. [2022-10-16 09:56:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 09:56:59,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:56:59,568 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:56:59,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-10-16 09:56:59,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 09:56:59,770 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:56:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:56:59,771 INFO L85 PathProgramCache]: Analyzing trace with hash -288164796, now seen corresponding path program 2 times [2022-10-16 09:56:59,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:56:59,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91997843] [2022-10-16 09:56:59,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:56:59,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:56:59,783 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:56:59,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131399317] [2022-10-16 09:56:59,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:56:59,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:56:59,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:56:59,785 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:56:59,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 09:56:59,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:56:59,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:56:59,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 09:56:59,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:00,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:57:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:00,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91997843] [2022-10-16 09:57:00,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131399317] [2022-10-16 09:57:00,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131399317] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:57:00,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:57:00,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-10-16 09:57:00,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065574741] [2022-10-16 09:57:00,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:57:00,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 09:57:00,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:00,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 09:57:00,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-10-16 09:57:00,180 INFO L87 Difference]: Start difference. First operand 134 states and 143 transitions. Second operand has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:57:00,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:00,524 INFO L93 Difference]: Finished difference Result 186 states and 197 transitions. [2022-10-16 09:57:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 09:57:00,524 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-10-16 09:57:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:00,526 INFO L225 Difference]: With dead ends: 186 [2022-10-16 09:57:00,526 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 09:57:00,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2022-10-16 09:57:00,527 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 154 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:00,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 125 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:57:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 09:57:00,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 139. [2022-10-16 09:57:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 132 states have (on average 1.121212121212121) internal successors, (148), 138 states have internal predecessors, (148), 0 states have call successors, (0), 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 09:57:00,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2022-10-16 09:57:00,541 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 46 [2022-10-16 09:57:00,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:00,541 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2022-10-16 09:57:00,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:57:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2022-10-16 09:57:00,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 09:57:00,542 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:00,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:00,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 09:57:00,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:00,756 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:00,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1499521114, now seen corresponding path program 3 times [2022-10-16 09:57:00,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:00,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10234157] [2022-10-16 09:57:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:00,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:00,767 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:00,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386048148] [2022-10-16 09:57:00,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 09:57:00,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:00,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:00,769 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:00,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 09:57:00,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 09:57:00,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:57:00,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 09:57:00,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:01,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-10-16 09:57:01,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 87 [2022-10-16 09:57:01,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 22 [2022-10-16 09:57:01,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2022-10-16 09:57:01,246 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-10-16 09:57:01,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 99 [2022-10-16 09:57:01,256 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 09:57:01,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 61 [2022-10-16 09:57:01,587 INFO L356 Elim1Store]: treesize reduction 62, result has 1.6 percent of original size [2022-10-16 09:57:01,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 109 [2022-10-16 09:57:01,765 INFO L356 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2022-10-16 09:57:01,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 32 [2022-10-16 09:57:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:01,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:57:03,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-10-16 09:57:03,247 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:57:03,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-10-16 09:57:03,325 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:57:03,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 118 [2022-10-16 09:57:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:04,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:04,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10234157] [2022-10-16 09:57:04,382 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:04,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386048148] [2022-10-16 09:57:04,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386048148] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:57:04,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:57:04,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2022-10-16 09:57:04,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350032809] [2022-10-16 09:57:04,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:57:04,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 09:57:04,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:04,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 09:57:04,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 09:57:04,384 INFO L87 Difference]: Start difference. First operand 139 states and 148 transitions. Second operand has 34 states, 33 states have (on average 2.878787878787879) internal successors, (95), 34 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:57:12,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-16 09:57:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:13,997 INFO L93 Difference]: Finished difference Result 194 states and 206 transitions. [2022-10-16 09:57:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 09:57:13,998 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.878787878787879) internal successors, (95), 34 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 09:57:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:13,999 INFO L225 Difference]: With dead ends: 194 [2022-10-16 09:57:13,999 INFO L226 Difference]: Without dead ends: 193 [2022-10-16 09:57:14,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=589, Invalid=2491, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 09:57:14,001 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 287 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 146 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:14,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 215 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 746 Invalid, 1 Unknown, 146 Unchecked, 3.2s Time] [2022-10-16 09:57:14,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-10-16 09:57:14,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 173. [2022-10-16 09:57:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 166 states have (on average 1.1024096385542168) internal successors, (183), 172 states have internal predecessors, (183), 0 states have call successors, (0), 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 09:57:14,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 183 transitions. [2022-10-16 09:57:14,018 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 183 transitions. Word has length 48 [2022-10-16 09:57:14,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:14,019 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 183 transitions. [2022-10-16 09:57:14,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.878787878787879) internal successors, (95), 34 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:57:14,019 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 183 transitions. [2022-10-16 09:57:14,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 09:57:14,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:14,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:14,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 09:57:14,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:14,225 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash -373520777, now seen corresponding path program 2 times [2022-10-16 09:57:14,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:14,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122193851] [2022-10-16 09:57:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:14,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:14,239 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:14,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683281362] [2022-10-16 09:57:14,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:57:14,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:14,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:14,241 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:14,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 09:57:14,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 09:57:14,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:57:14,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 09:57:14,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 09:57:14,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:57:14,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:14,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122193851] [2022-10-16 09:57:14,314 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:14,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683281362] [2022-10-16 09:57:14,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683281362] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:57:14,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:57:14,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:57:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830391250] [2022-10-16 09:57:14,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:57:14,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:57:14,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:57:14,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:57:14,316 INFO L87 Difference]: Start difference. First operand 173 states and 183 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 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 09:57:14,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:14,392 INFO L93 Difference]: Finished difference Result 181 states and 191 transitions. [2022-10-16 09:57:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 09:57:14,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 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 49 [2022-10-16 09:57:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:14,394 INFO L225 Difference]: With dead ends: 181 [2022-10-16 09:57:14,394 INFO L226 Difference]: Without dead ends: 180 [2022-10-16 09:57:14,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 09:57:14,395 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:14,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 48 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:57:14,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-16 09:57:14,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2022-10-16 09:57:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 171 states have (on average 1.0994152046783625) internal successors, (188), 177 states have internal predecessors, (188), 0 states have call successors, (0), 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 09:57:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 188 transitions. [2022-10-16 09:57:14,413 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 188 transitions. Word has length 49 [2022-10-16 09:57:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:14,414 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 188 transitions. [2022-10-16 09:57:14,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 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 09:57:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 188 transitions. [2022-10-16 09:57:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 09:57:14,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:14,415 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:14,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 09:57:14,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:14,624 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:14,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1305757919, now seen corresponding path program 1 times [2022-10-16 09:57:14,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:14,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636155161] [2022-10-16 09:57:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:14,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:14,637 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:14,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552718515] [2022-10-16 09:57:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:14,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:14,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:14,639 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:14,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 09:57:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:57:14,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 09:57:14,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 09:57:14,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:57:14,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:14,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636155161] [2022-10-16 09:57:14,734 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:14,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552718515] [2022-10-16 09:57:14,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552718515] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:57:14,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:57:14,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:57:14,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683830060] [2022-10-16 09:57:14,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:57:14,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:57:14,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:14,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:57:14,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:57:14,736 INFO L87 Difference]: Start difference. First operand 178 states and 188 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 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 09:57:14,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:14,829 INFO L93 Difference]: Finished difference Result 178 states and 188 transitions. [2022-10-16 09:57:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:57:14,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 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) Word has length 50 [2022-10-16 09:57:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:14,831 INFO L225 Difference]: With dead ends: 178 [2022-10-16 09:57:14,831 INFO L226 Difference]: Without dead ends: 177 [2022-10-16 09:57:14,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 09:57:14,833 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:14,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 42 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:57:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-16 09:57:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-10-16 09:57:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 171 states have (on average 1.0935672514619883) internal successors, (187), 176 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 09:57:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 187 transitions. [2022-10-16 09:57:14,856 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 187 transitions. Word has length 50 [2022-10-16 09:57:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:14,857 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 187 transitions. [2022-10-16 09:57:14,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 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 09:57:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 187 transitions. [2022-10-16 09:57:14,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 09:57:14,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:14,858 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:14,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 09:57:15,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 09:57:15,072 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:15,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:15,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1778347284, now seen corresponding path program 1 times [2022-10-16 09:57:15,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:15,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501743077] [2022-10-16 09:57:15,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:15,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:15,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:15,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971314903] [2022-10-16 09:57:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:15,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:15,085 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:15,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 09:57:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:57:15,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:57:15,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 09:57:15,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:57:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 09:57:15,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:15,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501743077] [2022-10-16 09:57:15,217 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:15,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971314903] [2022-10-16 09:57:15,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971314903] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:57:15,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:57:15,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 09:57:15,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816830220] [2022-10-16 09:57:15,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:57:15,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 09:57:15,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:15,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 09:57:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 09:57:15,222 INFO L87 Difference]: Start difference. First operand 177 states and 187 transitions. Second operand has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 0 states have call successors, (0), 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 09:57:15,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:15,379 INFO L93 Difference]: Finished difference Result 197 states and 209 transitions. [2022-10-16 09:57:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 09:57:15,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 0 states have call successors, (0), 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 55 [2022-10-16 09:57:15,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:15,381 INFO L225 Difference]: With dead ends: 197 [2022-10-16 09:57:15,381 INFO L226 Difference]: Without dead ends: 196 [2022-10-16 09:57:15,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 09:57:15,382 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 59 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:15,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 68 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:57:15,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-10-16 09:57:15,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2022-10-16 09:57:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.0846560846560847) internal successors, (205), 194 states have internal predecessors, (205), 0 states have call successors, (0), 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 09:57:15,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2022-10-16 09:57:15,408 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 55 [2022-10-16 09:57:15,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:15,408 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2022-10-16 09:57:15,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 0 states have call successors, (0), 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 09:57:15,409 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2022-10-16 09:57:15,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 09:57:15,410 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:15,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:15,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 09:57:15,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 09:57:15,623 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:15,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:15,624 INFO L85 PathProgramCache]: Analyzing trace with hash 881329639, now seen corresponding path program 2 times [2022-10-16 09:57:15,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:15,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163920831] [2022-10-16 09:57:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:15,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:15,635 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:15,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322969357] [2022-10-16 09:57:15,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:57:15,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:15,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:15,636 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:15,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 09:57:15,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:57:15,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:57:15,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 09:57:15,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:15,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-10-16 09:57:15,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 87 [2022-10-16 09:57:15,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 11 [2022-10-16 09:57:15,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-10-16 09:57:15,953 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-10-16 09:57:15,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-10-16 09:57:15,982 INFO L356 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2022-10-16 09:57:15,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 26 [2022-10-16 09:57:16,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-10-16 09:57:16,062 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-10-16 09:57:16,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-10-16 09:57:16,091 INFO L356 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2022-10-16 09:57:16,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 26 [2022-10-16 09:57:16,148 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:57:16,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 29 [2022-10-16 09:57:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:16,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:57:17,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-10-16 09:57:17,918 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:57:17,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-10-16 09:57:18,123 INFO L244 Elim1Store]: Index analysis took 134 ms [2022-10-16 09:57:18,145 INFO L356 Elim1Store]: treesize reduction 34, result has 19.0 percent of original size [2022-10-16 09:57:18,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 49 [2022-10-16 09:57:18,288 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-10-16 09:57:18,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 22 [2022-10-16 09:57:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:18,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:18,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163920831] [2022-10-16 09:57:18,609 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:18,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322969357] [2022-10-16 09:57:18,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322969357] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:57:18,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:57:18,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2022-10-16 09:57:18,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404514929] [2022-10-16 09:57:18,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:57:18,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 09:57:18,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:18,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 09:57:18,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2022-10-16 09:57:18,612 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand has 29 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 29 states have internal predecessors, (111), 0 states have call successors, (0), 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 09:57:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:20,710 INFO L93 Difference]: Finished difference Result 275 states and 285 transitions. [2022-10-16 09:57:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 09:57:20,712 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 29 states have internal predecessors, (111), 0 states have call successors, (0), 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 09:57:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:20,713 INFO L225 Difference]: With dead ends: 275 [2022-10-16 09:57:20,713 INFO L226 Difference]: Without dead ends: 274 [2022-10-16 09:57:20,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=244, Invalid=1562, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 09:57:20,715 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 167 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:20,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 413 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 09:57:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-10-16 09:57:20,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 198. [2022-10-16 09:57:20,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 192 states have (on average 1.0885416666666667) internal successors, (209), 197 states have internal predecessors, (209), 0 states have call successors, (0), 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 09:57:20,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 209 transitions. [2022-10-16 09:57:20,744 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 209 transitions. Word has length 57 [2022-10-16 09:57:20,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:20,744 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 209 transitions. [2022-10-16 09:57:20,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 29 states have internal predecessors, (111), 0 states have call successors, (0), 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 09:57:20,744 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 209 transitions. [2022-10-16 09:57:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 09:57:20,745 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:20,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:20,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-10-16 09:57:20,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:20,951 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:20,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash 849228553, now seen corresponding path program 1 times [2022-10-16 09:57:20,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:20,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088373585] [2022-10-16 09:57:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:20,964 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:20,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994664406] [2022-10-16 09:57:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:20,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:20,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:20,966 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:20,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 09:57:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:57:21,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 09:57:21,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-16 09:57:21,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:57:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-16 09:57:21,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:21,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088373585] [2022-10-16 09:57:21,181 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:21,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994664406] [2022-10-16 09:57:21,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994664406] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:57:21,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:57:21,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-16 09:57:21,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183457890] [2022-10-16 09:57:21,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:57:21,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 09:57:21,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:21,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 09:57:21,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-10-16 09:57:21,184 INFO L87 Difference]: Start difference. First operand 198 states and 209 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 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 09:57:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:21,378 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2022-10-16 09:57:21,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 09:57:21,379 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 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 59 [2022-10-16 09:57:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:21,380 INFO L225 Difference]: With dead ends: 208 [2022-10-16 09:57:21,380 INFO L226 Difference]: Without dead ends: 207 [2022-10-16 09:57:21,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-10-16 09:57:21,381 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 110 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:21,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 54 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:57:21,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-10-16 09:57:21,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 197. [2022-10-16 09:57:21,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.0833333333333333) internal successors, (208), 196 states have internal predecessors, (208), 0 states have call successors, (0), 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 09:57:21,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 208 transitions. [2022-10-16 09:57:21,406 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 208 transitions. Word has length 59 [2022-10-16 09:57:21,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:21,407 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 208 transitions. [2022-10-16 09:57:21,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 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 09:57:21,407 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 208 transitions. [2022-10-16 09:57:21,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 09:57:21,408 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:21,408 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:21,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 09:57:21,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:21,621 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:21,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2010538900, now seen corresponding path program 2 times [2022-10-16 09:57:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:21,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202865955] [2022-10-16 09:57:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:21,634 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:21,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509906296] [2022-10-16 09:57:21,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:57:21,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:21,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:21,636 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:21,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 09:57:21,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:57:21,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:57:21,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 09:57:21,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:21,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:57:22,212 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 09:57:22,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:57:22,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202865955] [2022-10-16 09:57:22,213 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 09:57:22,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509906296] [2022-10-16 09:57:22,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509906296] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:57:22,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 09:57:22,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2022-10-16 09:57:22,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600123972] [2022-10-16 09:57:22,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 09:57:22,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 09:57:22,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:57:22,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 09:57:22,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2022-10-16 09:57:22,216 INFO L87 Difference]: Start difference. First operand 197 states and 208 transitions. Second operand has 24 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 24 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:57:22,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:57:22,911 INFO L93 Difference]: Finished difference Result 276 states and 289 transitions. [2022-10-16 09:57:22,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 09:57:22,912 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 24 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-16 09:57:22,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:57:22,913 INFO L225 Difference]: With dead ends: 276 [2022-10-16 09:57:22,913 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 09:57:22,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 92 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=314, Invalid=1408, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 09:57:22,916 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 171 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 09:57:22,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 123 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 09:57:22,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 09:57:22,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 194. [2022-10-16 09:57:22,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.0846560846560847) internal successors, (205), 193 states have internal predecessors, (205), 0 states have call successors, (0), 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 09:57:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 205 transitions. [2022-10-16 09:57:22,939 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 205 transitions. Word has length 62 [2022-10-16 09:57:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:57:22,939 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 205 transitions. [2022-10-16 09:57:22,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 24 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:57:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 205 transitions. [2022-10-16 09:57:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 09:57:22,940 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:57:22,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:57:22,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 09:57:23,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 09:57:23,154 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 09:57:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:57:23,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1466519656, now seen corresponding path program 4 times [2022-10-16 09:57:23,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:57:23,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343113679] [2022-10-16 09:57:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:57:23,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:57:23,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 09:57:23,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824655830] [2022-10-16 09:57:23,166 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 09:57:23,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:57:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:57:23,167 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:57:23,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 09:57:23,286 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 09:57:23,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:57:23,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 09:57:23,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:57:23,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-10-16 09:57:23,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 87 [2022-10-16 09:57:23,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 22 [2022-10-16 09:57:23,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-10-16 09:57:23,528 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-10-16 09:57:23,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-10-16 09:57:23,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 21 [2022-10-16 09:57:25,912 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 16)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|))) (or (and (exists ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* (* |aux_div_ULTIMATE.start_main_~i~0#1_45| |aux_div_ULTIMATE.start_main_~i~0#1_45|) 18446744073709551616)) (.cse3 (* |aux_mod_ULTIMATE.start_main_~i~0#1_45| |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse4 (* 8589934592 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| |aux_mod_ULTIMATE.start_main_~i~0#1_45|)))) (and (<= 3 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 (select .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~#a~0#1.offset| (- 34359738368))) 1) (+ .cse2 .cse3 .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) (<= (+ .cse2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 .cse0 .cse4) 9223372036854775808)))) (<= (select .cse1 .cse5) 1)) (exists ((v_DerPreprocessor_23 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse12 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (let ((.cse11 (+ .cse12 |c_ULTIMATE.start_main_~#a~0#1.offset|))) (let ((.cse8 (* (* |aux_div_ULTIMATE.start_main_~i~0#1_45| |aux_div_ULTIMATE.start_main_~i~0#1_45|) 18446744073709551616)) (.cse9 (* |aux_mod_ULTIMATE.start_main_~i~0#1_45| |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (.cse6 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse10 (* 8589934592 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| |aux_mod_ULTIMATE.start_main_~i~0#1_45|))) (.cse7 (select .cse1 .cse11))) (and (<= 3 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse6)) (<= 0 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= (+ .cse7 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse6 1) (+ .cse8 .cse9 .cse10)) (<= (+ .cse8 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 .cse6 .cse10) 9223372036854775808) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (<= (select (store (store .cse1 .cse11 v_DerPreprocessor_23) (+ .cse12 |c_ULTIMATE.start_main_~#a~0#1.offset| (- 34359738368)) .cse7) .cse5) 1)))))))) is different from true [2022-10-16 09:57:44,822 WARN L233 SmtUtils]: Spent 12.09s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:58:03,272 WARN L233 SmtUtils]: Spent 13.39s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:58:03,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 216 [2022-10-16 09:58:03,935 INFO L356 Elim1Store]: treesize reduction 139, result has 0.7 percent of original size [2022-10-16 09:58:03,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 209 treesize of output 257 [2022-10-16 09:58:04,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 09:58:04,727 INFO L356 Elim1Store]: treesize reduction 45, result has 33.8 percent of original size [2022-10-16 09:58:04,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 204 treesize of output 170 [2022-10-16 09:58:12,312 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:58:19,196 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:58:28,137 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 09:58:28,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 194 [2022-10-16 09:58:28,489 INFO L356 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2022-10-16 09:58:28,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 193 treesize of output 244 [2022-10-16 09:58:33,551 INFO L356 Elim1Store]: treesize reduction 130, result has 24.4 percent of original size [2022-10-16 09:58:33,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 231 treesize of output 191 [2022-10-16 09:58:42,325 INFO L356 Elim1Store]: treesize reduction 45, result has 57.1 percent of original size [2022-10-16 09:58:42,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 210 treesize of output 205 [2022-10-16 09:58:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 13 not checked. [2022-10-16 09:58:44,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:59:05,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-10-16 09:59:05,564 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:59:05,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-10-16 09:59:06,179 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 09:59:06,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 112