/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-patterns/array28_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:20:21,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:20:21,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:20:21,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:20:21,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:20:21,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:20:21,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:20:21,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:20:21,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:20:21,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:20:21,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:20:21,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:20:21,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:20:21,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:20:21,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:20:21,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:20:21,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:20:21,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:20:21,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:20:21,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:20:21,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:20:21,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:20:21,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:20:21,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:20:21,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:20:21,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:20:21,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:20:21,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:20:21,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:20:21,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:20:21,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:20:21,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:20:21,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:20:21,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:20:21,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:20:21,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:20:21,338 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 11:20:21,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:20:21,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:20:21,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:20:21,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:20:21,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:20:21,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:20:21,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:20:21,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:20:21,395 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:20:21,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:20:21,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:20:21,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:20:21,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:20:21,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:20:21,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:20:21,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:20:21,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:20:21,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:20:21,398 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:20:21,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:20:21,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:20:21,399 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:20:21,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:20:21,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:20:21,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:20:21,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:20:21,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:20:21,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:20:21,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:20:21,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:20:21,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:20:21,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:20:21,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:20:21,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:20:21,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:20:21,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:20:21,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:20:21,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:20:21,805 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:20:21,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array28_pattern.c [2022-10-16 11:20:21,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a61b4a00/351826099c7e41969f36b75a175610ba/FLAGfc191644d [2022-10-16 11:20:22,539 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:20:22,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array28_pattern.c [2022-10-16 11:20:22,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a61b4a00/351826099c7e41969f36b75a175610ba/FLAGfc191644d [2022-10-16 11:20:22,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a61b4a00/351826099c7e41969f36b75a175610ba [2022-10-16 11:20:22,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:20:22,924 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:20:22,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:20:22,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:20:22,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:20:22,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:20:22" (1/1) ... [2022-10-16 11:20:22,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25fc77aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:22, skipping insertion in model container [2022-10-16 11:20:22,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:20:22" (1/1) ... [2022-10-16 11:20:22,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:20:22,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:20:23,191 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-patterns/array28_pattern.c[1246,1259] [2022-10-16 11:20:23,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:20:23,240 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:20:23,251 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-patterns/array28_pattern.c[1246,1259] [2022-10-16 11:20:23,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:20:23,275 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:20:23,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23 WrapperNode [2022-10-16 11:20:23,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:20:23,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:20:23,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:20:23,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:20:23,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,318 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-10-16 11:20:23,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:20:23,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:20:23,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:20:23,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:20:23,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,349 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:20:23,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:20:23,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:20:23,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:20:23,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (1/1) ... [2022-10-16 11:20:23,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:20:23,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:23,394 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 11:20:23,396 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 11:20:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:20:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:20:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:20:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:20:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:20:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:20:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:20:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:20:23,529 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:20:23,531 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:20:23,906 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:20:23,922 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:20:23,922 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 11:20:23,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:20:23 BoogieIcfgContainer [2022-10-16 11:20:23,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:20:23,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:20:23,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:20:23,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:20:23,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:20:22" (1/3) ... [2022-10-16 11:20:23,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f829a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:20:23, skipping insertion in model container [2022-10-16 11:20:23,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:20:23" (2/3) ... [2022-10-16 11:20:23,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f829a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:20:23, skipping insertion in model container [2022-10-16 11:20:23,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:20:23" (3/3) ... [2022-10-16 11:20:23,949 INFO L112 eAbstractionObserver]: Analyzing ICFG array28_pattern.c [2022-10-16 11:20:23,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:20:23,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 11:20:24,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:20:24,044 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;@47bedada, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:20:24,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 11:20:24,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 53 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:20:24,056 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:24,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:24,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:24,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash 119571470, now seen corresponding path program 1 times [2022-10-16 11:20:24,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:24,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800918412] [2022-10-16 11:20:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:24,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:24,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:24,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800918412] [2022-10-16 11:20:24,212 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:20:24,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260400903] [2022-10-16 11:20:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:24,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:24,215 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 11:20:24,239 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 11:20:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:24,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-16 11:20:24,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:24,314 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 11:20:24,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:24,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260400903] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:24,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:24,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:20:24,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887093407] [2022-10-16 11:20:24,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:24,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:20:24,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:24,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:20:24,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:20:24,359 INFO L87 Difference]: Start difference. First operand has 54 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 53 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:24,382 INFO L93 Difference]: Finished difference Result 105 states and 126 transitions. [2022-10-16 11:20:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:20:24,384 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 11:20:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:24,394 INFO L225 Difference]: With dead ends: 105 [2022-10-16 11:20:24,394 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 11:20:24,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 11:20:24,403 INFO L413 NwaCegarLoop]: 59 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, 59 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 11:20:24,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:20:24,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 11:20:24,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-16 11:20:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 11:20:24,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 11:20:24,446 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 8 [2022-10-16 11:20:24,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:24,447 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 11:20:24,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:24,448 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 11:20:24,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:20:24,449 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:24,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:24,481 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 11:20:24,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-16 11:20:24,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:24,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash 176799020, now seen corresponding path program 1 times [2022-10-16 11:20:24,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:24,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574066009] [2022-10-16 11:20:24,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:24,684 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:24,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56280789] [2022-10-16 11:20:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:24,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:24,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:24,686 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 11:20:24,704 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 11:20:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:24,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:20:24,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:24,859 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 11:20:24,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:24,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:24,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574066009] [2022-10-16 11:20:24,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:24,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56280789] [2022-10-16 11:20:24,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56280789] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:24,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:24,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:20:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196136466] [2022-10-16 11:20:24,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:24,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:20:24,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:24,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:20:24,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:20:24,870 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:25,111 INFO L93 Difference]: Finished difference Result 155 states and 174 transitions. [2022-10-16 11:20:25,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:20:25,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 11:20:25,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:25,118 INFO L225 Difference]: With dead ends: 155 [2022-10-16 11:20:25,118 INFO L226 Difference]: Without dead ends: 112 [2022-10-16 11:20:25,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 11:20:25,122 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 89 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:25,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 72 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:20:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-16 11:20:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 53. [2022-10-16 11:20:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 11:20:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-10-16 11:20:25,147 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 8 [2022-10-16 11:20:25,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:25,148 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-10-16 11:20:25,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:25,149 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-10-16 11:20:25,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:20:25,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:25,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:25,186 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 11:20:25,363 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,SelfDestructingSolverStorable1 [2022-10-16 11:20:25,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:25,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:25,365 INFO L85 PathProgramCache]: Analyzing trace with hash 176800014, now seen corresponding path program 1 times [2022-10-16 11:20:25,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:25,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636412394] [2022-10-16 11:20:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:25,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:25,379 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:25,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101145673] [2022-10-16 11:20:25,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:25,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:25,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:25,381 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 11:20:25,403 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 11:20:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:25,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:20:25,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:25,464 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 11:20:25,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:25,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:25,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636412394] [2022-10-16 11:20:25,466 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:25,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101145673] [2022-10-16 11:20:25,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101145673] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:25,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:25,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:20:25,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341607675] [2022-10-16 11:20:25,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:25,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:20:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:20:25,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:20:25,469 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:25,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:25,576 INFO L93 Difference]: Finished difference Result 154 states and 170 transitions. [2022-10-16 11:20:25,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:20:25,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 11:20:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:25,578 INFO L225 Difference]: With dead ends: 154 [2022-10-16 11:20:25,578 INFO L226 Difference]: Without dead ends: 109 [2022-10-16 11:20:25,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:20:25,580 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 59 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:25,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 70 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:20:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-16 11:20:25,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 53. [2022-10-16 11:20:25,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 52 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 11:20:25,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-10-16 11:20:25,590 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 8 [2022-10-16 11:20:25,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:25,590 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-10-16 11:20:25,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-10-16 11:20:25,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:20:25,591 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:25,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:25,625 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 11:20:25,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:25,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:25,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1185222675, now seen corresponding path program 1 times [2022-10-16 11:20:25,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:25,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886026755] [2022-10-16 11:20:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:25,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:25,822 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:25,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975726020] [2022-10-16 11:20:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:25,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:25,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:25,824 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 11:20:25,844 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 11:20:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:25,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:20:25,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:25,917 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 11:20:25,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:25,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:25,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886026755] [2022-10-16 11:20:25,918 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:25,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975726020] [2022-10-16 11:20:25,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975726020] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:25,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:25,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 11:20:25,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499362355] [2022-10-16 11:20:25,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:25,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:20:25,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:20:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:20:25,922 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:26,025 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2022-10-16 11:20:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:20:26,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:20:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:26,027 INFO L225 Difference]: With dead ends: 112 [2022-10-16 11:20:26,027 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 11:20:26,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 11:20:26,033 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 46 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:26,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 79 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:20:26,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 11:20:26,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 53. [2022-10-16 11:20:26,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 52 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 11:20:26,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-10-16 11:20:26,043 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 9 [2022-10-16 11:20:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:26,043 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-10-16 11:20:26,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-10-16 11:20:26,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:20:26,044 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:26,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:26,080 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 11:20:26,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:26,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:26,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1893680773, now seen corresponding path program 1 times [2022-10-16 11:20:26,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:26,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493672933] [2022-10-16 11:20:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:26,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:26,293 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:26,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911255343] [2022-10-16 11:20:26,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:26,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:26,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:26,297 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 11:20:26,318 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 11:20:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:26,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:20:26,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:26,370 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 11:20:26,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:26,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:26,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493672933] [2022-10-16 11:20:26,373 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:26,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911255343] [2022-10-16 11:20:26,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911255343] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:26,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:26,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:20:26,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850303050] [2022-10-16 11:20:26,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:26,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:20:26,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:26,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:20:26,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:20:26,378 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 11:20:26,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:26,458 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2022-10-16 11:20:26,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:20:26,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 11:20:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:26,460 INFO L225 Difference]: With dead ends: 97 [2022-10-16 11:20:26,460 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 11:20:26,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:20:26,465 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 42 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:26,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 134 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:20:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 11:20:26,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 64. [2022-10-16 11:20:26,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.625) internal successors, (78), 63 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:26,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2022-10-16 11:20:26,482 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 10 [2022-10-16 11:20:26,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:26,482 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2022-10-16 11:20:26,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 11:20:26,482 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2022-10-16 11:20:26,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:20:26,483 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:26,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:26,510 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 11:20:26,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:26,690 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:26,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:26,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1425438264, now seen corresponding path program 1 times [2022-10-16 11:20:26,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:26,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947914230] [2022-10-16 11:20:26,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:26,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:26,720 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:26,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439971141] [2022-10-16 11:20:26,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:26,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:26,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:26,722 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 11:20:26,729 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 11:20:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:26,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:20:26,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:26,791 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 11:20:26,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:26,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947914230] [2022-10-16 11:20:26,792 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439971141] [2022-10-16 11:20:26,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439971141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:26,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:26,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:20:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547808302] [2022-10-16 11:20:26,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:26,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:20:26,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:26,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:20:26,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:20:26,796 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:26,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:26,859 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2022-10-16 11:20:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:20:26,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 11:20:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:26,861 INFO L225 Difference]: With dead ends: 80 [2022-10-16 11:20:26,861 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 11:20:26,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 11:20:26,865 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 41 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:26,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 77 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:20:26,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 11:20:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2022-10-16 11:20:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 62 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 11:20:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2022-10-16 11:20:26,880 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 11 [2022-10-16 11:20:26,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:26,880 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2022-10-16 11:20:26,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:26,881 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2022-10-16 11:20:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 11:20:26,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:26,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:26,916 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 11:20:27,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:27,097 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:27,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:27,098 INFO L85 PathProgramCache]: Analyzing trace with hash 889720991, now seen corresponding path program 1 times [2022-10-16 11:20:27,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:27,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857007967] [2022-10-16 11:20:27,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:27,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:27,112 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:27,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225800213] [2022-10-16 11:20:27,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:27,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:27,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:27,115 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 11:20:27,120 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 11:20:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:27,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:20:27,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:20:27,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:27,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:27,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857007967] [2022-10-16 11:20:27,216 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:27,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225800213] [2022-10-16 11:20:27,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225800213] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:27,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:27,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:20:27,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802146843] [2022-10-16 11:20:27,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:27,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:20:27,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:27,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:20:27,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:20:27,218 INFO L87 Difference]: Start difference. First operand 63 states and 77 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 11:20:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:27,323 INFO L93 Difference]: Finished difference Result 104 states and 122 transitions. [2022-10-16 11:20:27,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:20:27,323 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 11:20:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:27,324 INFO L225 Difference]: With dead ends: 104 [2022-10-16 11:20:27,324 INFO L226 Difference]: Without dead ends: 103 [2022-10-16 11:20:27,325 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 11:20:27,326 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:27,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 76 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:20:27,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-16 11:20:27,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 79. [2022-10-16 11:20:27,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 64 states have (on average 1.609375) internal successors, (103), 78 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2022-10-16 11:20:27,339 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 14 [2022-10-16 11:20:27,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:27,339 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2022-10-16 11:20:27,340 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 11:20:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-10-16 11:20:27,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 11:20:27,343 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:27,344 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:27,393 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 11:20:27,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:27,545 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:27,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:27,546 INFO L85 PathProgramCache]: Analyzing trace with hash 889721985, now seen corresponding path program 1 times [2022-10-16 11:20:27,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:27,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975266744] [2022-10-16 11:20:27,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:27,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:27,564 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:27,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117668249] [2022-10-16 11:20:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:27,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:27,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:27,575 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 11:20:27,591 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 11:20:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:27,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:20:27,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:27,735 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 11:20:27,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:27,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:27,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975266744] [2022-10-16 11:20:27,735 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:27,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117668249] [2022-10-16 11:20:27,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117668249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:27,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:27,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:20:27,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025796047] [2022-10-16 11:20:27,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:27,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:20:27,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:27,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:20:27,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:20:27,739 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 11:20:27,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:27,883 INFO L93 Difference]: Finished difference Result 178 states and 220 transitions. [2022-10-16 11:20:27,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:20:27,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 11:20:27,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:27,884 INFO L225 Difference]: With dead ends: 178 [2022-10-16 11:20:27,885 INFO L226 Difference]: Without dead ends: 109 [2022-10-16 11:20:27,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:20:27,886 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 62 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:27,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 90 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:20:27,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-16 11:20:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 77. [2022-10-16 11:20:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 62 states have (on average 1.564516129032258) internal successors, (97), 76 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 11:20:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 97 transitions. [2022-10-16 11:20:27,893 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 97 transitions. Word has length 14 [2022-10-16 11:20:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:27,893 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 97 transitions. [2022-10-16 11:20:27,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 11:20:27,893 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 97 transitions. [2022-10-16 11:20:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 11:20:27,894 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:27,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:27,919 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 11:20:28,094 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,SelfDestructingSolverStorable7 [2022-10-16 11:20:28,096 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:28,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:28,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1811547036, now seen corresponding path program 1 times [2022-10-16 11:20:28,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:28,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60340538] [2022-10-16 11:20:28,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:28,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:28,120 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:28,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362411928] [2022-10-16 11:20:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:28,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:28,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:28,122 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 11:20:28,122 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 11:20:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:28,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:20:28,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:20:28,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:28,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:28,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60340538] [2022-10-16 11:20:28,194 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:28,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362411928] [2022-10-16 11:20:28,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362411928] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:28,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:28,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:20:28,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038250299] [2022-10-16 11:20:28,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:28,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:20:28,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:20:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:20:28,201 INFO L87 Difference]: Start difference. First operand 77 states and 97 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:28,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:28,251 INFO L93 Difference]: Finished difference Result 92 states and 113 transitions. [2022-10-16 11:20:28,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:20:28,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 11:20:28,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:28,253 INFO L225 Difference]: With dead ends: 92 [2022-10-16 11:20:28,253 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 11:20:28,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 11:20:28,254 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 36 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:28,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 64 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:20:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 11:20:28,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 76. [2022-10-16 11:20:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.5483870967741935) internal successors, (96), 75 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 11:20:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2022-10-16 11:20:28,262 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 15 [2022-10-16 11:20:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:28,262 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2022-10-16 11:20:28,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2022-10-16 11:20:28,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 11:20:28,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:28,263 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:28,300 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 11:20:28,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:28,476 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:28,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:28,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1811583811, now seen corresponding path program 1 times [2022-10-16 11:20:28,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:28,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020084881] [2022-10-16 11:20:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:28,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:28,490 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:28,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28353837] [2022-10-16 11:20:28,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:28,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:28,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:28,493 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 11:20:28,506 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 11:20:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:28,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:20:28,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:28,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:20:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:28,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:28,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020084881] [2022-10-16 11:20:28,682 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:28,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28353837] [2022-10-16 11:20:28,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28353837] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:20:28,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:20:28,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:20:28,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199725782] [2022-10-16 11:20:28,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:20:28,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:20:28,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:20:28,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:20:28,685 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 11:20:28,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:28,912 INFO L93 Difference]: Finished difference Result 130 states and 148 transitions. [2022-10-16 11:20:28,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 11:20:28,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 11:20:28,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:28,914 INFO L225 Difference]: With dead ends: 130 [2022-10-16 11:20:28,914 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 11:20:28,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:20:28,915 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 153 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:28,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 129 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:20:28,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 11:20:28,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2022-10-16 11:20:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.532258064516129) internal successors, (95), 75 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 11:20:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2022-10-16 11:20:28,923 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 95 transitions. Word has length 15 [2022-10-16 11:20:28,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:28,924 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 95 transitions. [2022-10-16 11:20:28,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 11:20:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 95 transitions. [2022-10-16 11:20:28,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:20:28,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:28,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:28,962 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 11:20:29,138 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,SelfDestructingSolverStorable9 [2022-10-16 11:20:29,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash 324523364, now seen corresponding path program 1 times [2022-10-16 11:20:29,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:29,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175838882] [2022-10-16 11:20:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:29,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:29,154 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:29,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181707587] [2022-10-16 11:20:29,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:29,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:29,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:29,159 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 11:20:29,175 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 11:20:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:29,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:20:29,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:29,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:20:29,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:29,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175838882] [2022-10-16 11:20:29,291 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:29,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181707587] [2022-10-16 11:20:29,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181707587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:20:29,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:20:29,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 11:20:29,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400108994] [2022-10-16 11:20:29,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:20:29,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:20:29,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:29,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:20:29,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:20:29,294 INFO L87 Difference]: Start difference. First operand 76 states and 95 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 11:20:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:29,422 INFO L93 Difference]: Finished difference Result 106 states and 122 transitions. [2022-10-16 11:20:29,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:20:29,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 11:20:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:29,423 INFO L225 Difference]: With dead ends: 106 [2022-10-16 11:20:29,424 INFO L226 Difference]: Without dead ends: 105 [2022-10-16 11:20:29,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:20:29,425 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 44 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:29,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 99 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:20:29,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-16 11:20:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 76. [2022-10-16 11:20:29,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.5161290322580645) internal successors, (94), 75 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:20:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 94 transitions. [2022-10-16 11:20:29,438 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 94 transitions. Word has length 16 [2022-10-16 11:20:29,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:29,438 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 94 transitions. [2022-10-16 11:20:29,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 11:20:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 94 transitions. [2022-10-16 11:20:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 11:20:29,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:29,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:29,480 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 11:20:29,654 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,SelfDestructingSolverStorable10 [2022-10-16 11:20:29,655 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:29,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:29,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1470289765, now seen corresponding path program 1 times [2022-10-16 11:20:29,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:29,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139571965] [2022-10-16 11:20:29,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:29,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:29,668 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:29,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961082934] [2022-10-16 11:20:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:29,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:29,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:29,670 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 11:20:29,684 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 11:20:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:29,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 11:20:29,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:29,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:20:30,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:30,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:30,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139571965] [2022-10-16 11:20:30,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:30,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961082934] [2022-10-16 11:20:30,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961082934] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:20:30,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:20:30,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:20:30,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407627893] [2022-10-16 11:20:30,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:20:30,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:20:30,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:30,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:20:30,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:20:30,103 INFO L87 Difference]: Start difference. First operand 76 states and 94 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 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 11:20:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:30,300 INFO L93 Difference]: Finished difference Result 107 states and 131 transitions. [2022-10-16 11:20:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 11:20:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 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 17 [2022-10-16 11:20:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:30,301 INFO L225 Difference]: With dead ends: 107 [2022-10-16 11:20:30,302 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 11:20:30,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-10-16 11:20:30,303 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 103 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:30,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 120 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 103 Unchecked, 0.1s Time] [2022-10-16 11:20:30,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 11:20:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 93. [2022-10-16 11:20:30,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 92 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 11:20:30,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2022-10-16 11:20:30,310 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 17 [2022-10-16 11:20:30,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:30,311 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2022-10-16 11:20:30,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 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 11:20:30,311 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2022-10-16 11:20:30,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 11:20:30,312 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:30,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:30,349 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 11:20:30,512 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,SelfDestructingSolverStorable11 [2022-10-16 11:20:30,513 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:20:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:30,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1665657466, now seen corresponding path program 1 times [2022-10-16 11:20:30,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:30,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260135120] [2022-10-16 11:20:30,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:30,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:30,524 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:30,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2042131148] [2022-10-16 11:20:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:30,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:30,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:30,528 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 11:20:30,546 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 11:20:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:30,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:20:30,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:30,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:20:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:30,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:30,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260135120] [2022-10-16 11:20:30,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:30,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042131148] [2022-10-16 11:20:30,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042131148] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:20:30,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:20:30,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:20:30,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496360066] [2022-10-16 11:20:30,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:20:30,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:20:30,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:30,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:20:30,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:20:30,929 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 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 11:20:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:31,112 INFO L93 Difference]: Finished difference Result 106 states and 129 transitions. [2022-10-16 11:20:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 11:20:31,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 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 11:20:31,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:31,114 INFO L225 Difference]: With dead ends: 106 [2022-10-16 11:20:31,114 INFO L226 Difference]: Without dead ends: 105 [2022-10-16 11:20:31,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-16 11:20:31,115 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 52 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:31,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 133 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 125 Invalid, 0 Unknown, 94 Unchecked, 0.1s Time] [2022-10-16 11:20:31,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-16 11:20:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2022-10-16 11:20:31,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 80 states have (on average 1.4375) internal successors, (115), 93 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 11:20:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2022-10-16 11:20:31,123 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 18 [2022-10-16 11:20:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:31,123 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2022-10-16 11:20:31,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 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 11:20:31,124 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2022-10-16 11:20:31,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 11:20:31,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:31,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:20:31,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:20:31,325 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,SelfDestructingSolverStorable12 [2022-10-16 11:20:31,325 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 11:20:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash 300745956, now seen corresponding path program 1 times [2022-10-16 11:20:31,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:31,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469546395] [2022-10-16 11:20:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:31,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:31,345 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:31,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283090958] [2022-10-16 11:20:31,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:31,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:31,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:31,348 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 11:20:31,353 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 11:20:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:31,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:20:31,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:31,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:31,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:20:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:20:31,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469546395] [2022-10-16 11:20:31,558 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:20:31,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283090958] [2022-10-16 11:20:31,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283090958] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:20:31,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:20:31,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-10-16 11:20:31,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501575964] [2022-10-16 11:20:31,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:20:31,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:20:31,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:20:31,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:20:31,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:20:31,560 INFO L87 Difference]: Start difference. First operand 94 states and 115 transitions. Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 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 11:20:32,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:20:32,032 INFO L93 Difference]: Finished difference Result 225 states and 263 transitions. [2022-10-16 11:20:32,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 11:20:32,033 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 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 19 [2022-10-16 11:20:32,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:20:32,034 INFO L225 Difference]: With dead ends: 225 [2022-10-16 11:20:32,034 INFO L226 Difference]: Without dead ends: 171 [2022-10-16 11:20:32,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2022-10-16 11:20:32,036 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 206 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:20:32,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 167 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:20:32,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-10-16 11:20:32,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 106. [2022-10-16 11:20:32,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 105 states have internal predecessors, (130), 0 states have call successors, (0), 0 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 11:20:32,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 130 transitions. [2022-10-16 11:20:32,044 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 130 transitions. Word has length 19 [2022-10-16 11:20:32,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:20:32,044 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 130 transitions. [2022-10-16 11:20:32,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 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 11:20:32,045 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 130 transitions. [2022-10-16 11:20:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:20:32,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:20:32,045 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 11:20:32,081 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 11:20:32,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:32,261 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 11:20:32,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:20:32,262 INFO L85 PathProgramCache]: Analyzing trace with hash 732610395, now seen corresponding path program 1 times [2022-10-16 11:20:32,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:20:32,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730454365] [2022-10-16 11:20:32,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:32,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:20:32,273 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:20:32,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377894588] [2022-10-16 11:20:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:20:32,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:20:32,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:20:32,282 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 11:20:32,298 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 11:20:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:20:32,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 11:20:32,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:20:32,411 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 37 treesize of output 32 [2022-10-16 11:20:32,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 30 treesize of output 30 [2022-10-16 11:20:32,543 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 36 treesize of output 24 [2022-10-16 11:20:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:20:32,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:20:32,741 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 56 treesize of output 52 [2022-10-16 11:20:32,755 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:20:32,755 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 2 case distinctions, treesize of input 52 treesize of output 121 [2022-10-16 11:20:32,840 INFO L356 Elim1Store]: treesize reduction 124, result has 31.1 percent of original size [2022-10-16 11:20:32,841 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 4 case distinctions, treesize of input 123 treesize of output 101 [2022-10-16 11:20:32,917 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:20:32,918 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 130 treesize of output 114 [2022-10-16 11:22:06,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:06,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:06,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730454365] [2022-10-16 11:22:06,447 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:06,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377894588] [2022-10-16 11:22:06,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377894588] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:06,447 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:06,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-16 11:22:06,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728355820] [2022-10-16 11:22:06,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:06,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 11:22:06,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:06,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 11:22:06,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=134, Unknown=2, NotChecked=0, Total=182 [2022-10-16 11:22:06,449 INFO L87 Difference]: Start difference. First operand 106 states and 130 transitions. Second operand has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 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 11:22:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:08,870 INFO L93 Difference]: Finished difference Result 214 states and 253 transitions. [2022-10-16 11:22:08,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:22:08,871 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 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 11:22:08,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:08,872 INFO L225 Difference]: With dead ends: 214 [2022-10-16 11:22:08,873 INFO L226 Difference]: Without dead ends: 213 [2022-10-16 11:22:08,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=108, Invalid=310, Unknown=2, NotChecked=0, Total=420 [2022-10-16 11:22:08,874 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 197 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:08,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 245 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 246 Invalid, 0 Unknown, 102 Unchecked, 2.1s Time] [2022-10-16 11:22:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-10-16 11:22:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 129. [2022-10-16 11:22:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 115 states have (on average 1.4173913043478261) internal successors, (163), 128 states have internal predecessors, (163), 0 states have call successors, (0), 0 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 11:22:08,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 163 transitions. [2022-10-16 11:22:08,884 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 163 transitions. Word has length 20 [2022-10-16 11:22:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:08,884 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 163 transitions. [2022-10-16 11:22:08,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 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 11:22:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 163 transitions. [2022-10-16 11:22:08,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:22:08,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:08,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:08,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 11:22:09,099 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,SelfDestructingSolverStorable14 [2022-10-16 11:22:09,100 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:09,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:09,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1325979112, now seen corresponding path program 1 times [2022-10-16 11:22:09,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:09,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764882625] [2022-10-16 11:22:09,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:09,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:09,111 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:09,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362742442] [2022-10-16 11:22:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:09,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:09,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:09,113 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 11:22:09,115 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 11:22:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:09,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:22:09,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:09,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:09,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764882625] [2022-10-16 11:22:09,240 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:09,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362742442] [2022-10-16 11:22:09,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362742442] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:09,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:09,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:22:09,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292016850] [2022-10-16 11:22:09,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:09,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:22:09,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:22:09,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:22:09,243 INFO L87 Difference]: Start difference. First operand 129 states and 163 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:09,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:09,693 INFO L93 Difference]: Finished difference Result 322 states and 398 transitions. [2022-10-16 11:22:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:22:09,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 11:22:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:09,696 INFO L225 Difference]: With dead ends: 322 [2022-10-16 11:22:09,696 INFO L226 Difference]: Without dead ends: 321 [2022-10-16 11:22:09,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 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 11:22:09,698 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 110 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:09,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 198 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:22:09,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-10-16 11:22:09,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 207. [2022-10-16 11:22:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 193 states have (on average 1.461139896373057) internal successors, (282), 206 states have internal predecessors, (282), 0 states have call successors, (0), 0 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 11:22:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 282 transitions. [2022-10-16 11:22:09,712 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 282 transitions. Word has length 20 [2022-10-16 11:22:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:09,713 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 282 transitions. [2022-10-16 11:22:09,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:09,713 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 282 transitions. [2022-10-16 11:22:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 11:22:09,714 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:09,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:09,747 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 11:22:09,927 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,SelfDestructingSolverStorable15 [2022-10-16 11:22:09,927 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:09,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1236085880, now seen corresponding path program 1 times [2022-10-16 11:22:09,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:09,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317371611] [2022-10-16 11:22:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:09,938 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:09,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770989333] [2022-10-16 11:22:09,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:09,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:09,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:09,940 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 11:22:09,950 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 11:22:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:09,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 11:22:09,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:10,047 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 37 treesize of output 32 [2022-10-16 11:22:10,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 30 treesize of output 30 [2022-10-16 11:22:10,153 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 36 treesize of output 24 [2022-10-16 11:22:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:10,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:10,339 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 56 treesize of output 52 [2022-10-16 11:22:10,352 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:22:10,352 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 2 case distinctions, treesize of input 52 treesize of output 121 [2022-10-16 11:22:10,573 INFO L356 Elim1Store]: treesize reduction 122, result has 32.2 percent of original size [2022-10-16 11:22:10,573 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 4 case distinctions, treesize of input 125 treesize of output 103 [2022-10-16 11:22:10,688 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:22:10,688 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 142 treesize of output 115 [2022-10-16 11:22:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:28,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:28,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317371611] [2022-10-16 11:22:28,153 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:28,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770989333] [2022-10-16 11:22:28,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770989333] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:28,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:28,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-16 11:22:28,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762577393] [2022-10-16 11:22:28,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:28,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 11:22:28,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:28,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 11:22:28,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:22:28,156 INFO L87 Difference]: Start difference. First operand 207 states and 282 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 11:22:30,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:30,862 INFO L93 Difference]: Finished difference Result 464 states and 634 transitions. [2022-10-16 11:22:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 11:22:30,863 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 11:22:30,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:30,866 INFO L225 Difference]: With dead ends: 464 [2022-10-16 11:22:30,866 INFO L226 Difference]: Without dead ends: 463 [2022-10-16 11:22:30,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2022-10-16 11:22:30,868 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 338 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 201 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:30,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 217 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 271 Invalid, 0 Unknown, 201 Unchecked, 1.6s Time] [2022-10-16 11:22:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-10-16 11:22:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 337. [2022-10-16 11:22:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 323 states have (on average 1.4829721362229102) internal successors, (479), 336 states have internal predecessors, (479), 0 states have call successors, (0), 0 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 11:22:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 479 transitions. [2022-10-16 11:22:30,894 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 479 transitions. Word has length 21 [2022-10-16 11:22:30,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:30,895 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 479 transitions. [2022-10-16 11:22:30,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 11:22:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 479 transitions. [2022-10-16 11:22:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:22:30,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:30,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:30,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-10-16 11:22:31,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 11:22:31,111 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:31,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:31,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1827406566, now seen corresponding path program 1 times [2022-10-16 11:22:31,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:31,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654332607] [2022-10-16 11:22:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:31,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:31,122 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:31,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363187047] [2022-10-16 11:22:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:31,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:31,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:31,124 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 11:22:31,140 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 11:22:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:31,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:22:31,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:22:31,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:22:31,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:31,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654332607] [2022-10-16 11:22:31,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:31,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363187047] [2022-10-16 11:22:31,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363187047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:22:31,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:22:31,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:22:31,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122856571] [2022-10-16 11:22:31,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:22:31,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:22:31,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:31,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:22:31,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:22:31,193 INFO L87 Difference]: Start difference. First operand 337 states and 479 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 11:22:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:31,293 INFO L93 Difference]: Finished difference Result 382 states and 525 transitions. [2022-10-16 11:22:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:22:31,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 11:22:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:31,300 INFO L225 Difference]: With dead ends: 382 [2022-10-16 11:22:31,300 INFO L226 Difference]: Without dead ends: 381 [2022-10-16 11:22:31,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 11:22:31,302 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:31,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 110 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:22:31,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-10-16 11:22:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 342. [2022-10-16 11:22:31,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 328 states have (on average 1.4847560975609757) internal successors, (487), 341 states have internal predecessors, (487), 0 states have call successors, (0), 0 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 11:22:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 487 transitions. [2022-10-16 11:22:31,364 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 487 transitions. Word has length 23 [2022-10-16 11:22:31,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:31,364 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 487 transitions. [2022-10-16 11:22:31,365 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 11:22:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 487 transitions. [2022-10-16 11:22:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:22:31,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:31,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:31,408 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 11:22:31,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 11:22:31,573 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:31,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:31,573 INFO L85 PathProgramCache]: Analyzing trace with hash -815028577, now seen corresponding path program 1 times [2022-10-16 11:22:31,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:31,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645711403] [2022-10-16 11:22:31,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:31,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:31,591 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:31,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [490397430] [2022-10-16 11:22:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:31,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:31,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:31,600 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 11:22:31,620 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 11:22:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:31,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:22:31,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:22:31,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:22:31,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:31,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645711403] [2022-10-16 11:22:31,672 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:31,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490397430] [2022-10-16 11:22:31,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490397430] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:22:31,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:22:31,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:22:31,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479028395] [2022-10-16 11:22:31,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:22:31,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:22:31,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:31,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:22:31,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:22:31,675 INFO L87 Difference]: Start difference. First operand 342 states and 487 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 11:22:31,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:31,776 INFO L93 Difference]: Finished difference Result 371 states and 516 transitions. [2022-10-16 11:22:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:22:31,776 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 24 [2022-10-16 11:22:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:31,779 INFO L225 Difference]: With dead ends: 371 [2022-10-16 11:22:31,779 INFO L226 Difference]: Without dead ends: 370 [2022-10-16 11:22:31,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 11:22:31,780 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 38 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:31,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 81 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:22:31,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-10-16 11:22:31,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 341. [2022-10-16 11:22:31,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 328 states have (on average 1.4817073170731707) internal successors, (486), 340 states have internal predecessors, (486), 0 states have call successors, (0), 0 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 11:22:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 486 transitions. [2022-10-16 11:22:31,805 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 486 transitions. Word has length 24 [2022-10-16 11:22:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:31,808 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 486 transitions. [2022-10-16 11:22:31,808 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 11:22:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 486 transitions. [2022-10-16 11:22:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:22:31,809 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:31,809 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:31,849 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 11:22:32,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:32,023 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 11:22:32,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1558411071, now seen corresponding path program 1 times [2022-10-16 11:22:32,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:32,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775851113] [2022-10-16 11:22:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:32,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:32,033 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:32,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2032239794] [2022-10-16 11:22:32,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:32,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:32,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:32,035 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 11:22:32,046 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 11:22:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:32,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:22:32,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:32,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:32,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:32,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775851113] [2022-10-16 11:22:32,229 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:32,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032239794] [2022-10-16 11:22:32,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032239794] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:32,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:32,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 11:22:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624529657] [2022-10-16 11:22:32,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:32,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:22:32,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:22:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:22:32,231 INFO L87 Difference]: Start difference. First operand 341 states and 486 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 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 11:22:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:32,713 INFO L93 Difference]: Finished difference Result 844 states and 1173 transitions. [2022-10-16 11:22:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:22:32,714 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 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 26 [2022-10-16 11:22:32,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:32,717 INFO L225 Difference]: With dead ends: 844 [2022-10-16 11:22:32,717 INFO L226 Difference]: Without dead ends: 556 [2022-10-16 11:22:32,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:22:32,719 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 275 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:32,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 223 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:22:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-10-16 11:22:32,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 411. [2022-10-16 11:22:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 398 states have (on average 1.4547738693467336) internal successors, (579), 410 states have internal predecessors, (579), 0 states have call successors, (0), 0 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 11:22:32,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 579 transitions. [2022-10-16 11:22:32,771 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 579 transitions. Word has length 26 [2022-10-16 11:22:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:32,771 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 579 transitions. [2022-10-16 11:22:32,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 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 11:22:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 579 transitions. [2022-10-16 11:22:32,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:22:32,772 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:32,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:32,810 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 11:22:32,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:32,987 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 11:22:32,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1066104368, now seen corresponding path program 1 times [2022-10-16 11:22:32,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:32,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070416941] [2022-10-16 11:22:32,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:32,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:32,998 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:32,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629821168] [2022-10-16 11:22:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:32,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:32,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:32,999 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 11:22:33,010 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 11:22:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:33,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:22:33,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:22:33,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:22:33,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:33,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070416941] [2022-10-16 11:22:33,084 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:33,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629821168] [2022-10-16 11:22:33,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629821168] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:22:33,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:22:33,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:22:33,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165103598] [2022-10-16 11:22:33,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:22:33,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:22:33,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:33,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:22:33,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:22:33,086 INFO L87 Difference]: Start difference. First operand 411 states and 579 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 11:22:33,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:33,166 INFO L93 Difference]: Finished difference Result 442 states and 614 transitions. [2022-10-16 11:22:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:22:33,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 11:22:33,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:33,171 INFO L225 Difference]: With dead ends: 442 [2022-10-16 11:22:33,172 INFO L226 Difference]: Without dead ends: 441 [2022-10-16 11:22:33,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 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 11:22:33,174 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 26 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:33,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 92 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:22:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-10-16 11:22:33,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2022-10-16 11:22:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 418 states have (on average 1.4521531100478469) internal successors, (607), 430 states have internal predecessors, (607), 0 states have call successors, (0), 0 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 11:22:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 607 transitions. [2022-10-16 11:22:33,223 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 607 transitions. Word has length 27 [2022-10-16 11:22:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:33,224 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 607 transitions. [2022-10-16 11:22:33,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 11:22:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 607 transitions. [2022-10-16 11:22:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:22:33,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:33,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:33,251 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 11:22:33,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:33,439 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 11:22:33,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1310503089, now seen corresponding path program 1 times [2022-10-16 11:22:33,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:33,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888044479] [2022-10-16 11:22:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:33,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:33,450 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:33,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617952779] [2022-10-16 11:22:33,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:33,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:33,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:33,451 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 11:22:33,459 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 11:22:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:33,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:22:33,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:22:33,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:22:33,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:33,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888044479] [2022-10-16 11:22:33,514 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:33,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617952779] [2022-10-16 11:22:33,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617952779] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:22:33,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:22:33,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:22:33,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106704425] [2022-10-16 11:22:33,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:22:33,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:22:33,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:33,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:22:33,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:22:33,516 INFO L87 Difference]: Start difference. First operand 431 states and 607 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:33,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:33,598 INFO L93 Difference]: Finished difference Result 435 states and 608 transitions. [2022-10-16 11:22:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:22:33,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 11:22:33,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:33,602 INFO L225 Difference]: With dead ends: 435 [2022-10-16 11:22:33,602 INFO L226 Difference]: Without dead ends: 434 [2022-10-16 11:22:33,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 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 11:22:33,604 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 25 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:33,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 75 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:22:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-10-16 11:22:33,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 430. [2022-10-16 11:22:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 418 states have (on average 1.444976076555024) internal successors, (604), 429 states have internal predecessors, (604), 0 states have call successors, (0), 0 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 11:22:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 604 transitions. [2022-10-16 11:22:33,640 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 604 transitions. Word has length 28 [2022-10-16 11:22:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:33,640 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 604 transitions. [2022-10-16 11:22:33,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 604 transitions. [2022-10-16 11:22:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 11:22:33,641 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:33,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:33,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:33,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:33,848 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:33,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1029074153, now seen corresponding path program 1 times [2022-10-16 11:22:33,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:33,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981542062] [2022-10-16 11:22:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:33,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:33,859 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:33,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847732092] [2022-10-16 11:22:33,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:33,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:33,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:33,861 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 11:22:33,862 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 11:22:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:33,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 11:22:33,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:33,961 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:33,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:34,017 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:34,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:34,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981542062] [2022-10-16 11:22:34,018 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:34,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847732092] [2022-10-16 11:22:34,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847732092] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:34,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:34,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-10-16 11:22:34,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206023440] [2022-10-16 11:22:34,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:34,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 11:22:34,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:34,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 11:22:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 11:22:34,020 INFO L87 Difference]: Start difference. First operand 430 states and 604 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 11:22:34,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:34,408 INFO L93 Difference]: Finished difference Result 483 states and 656 transitions. [2022-10-16 11:22:34,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 11:22:34,408 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 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 29 [2022-10-16 11:22:34,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:34,411 INFO L225 Difference]: With dead ends: 483 [2022-10-16 11:22:34,411 INFO L226 Difference]: Without dead ends: 471 [2022-10-16 11:22:34,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2022-10-16 11:22:34,412 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 200 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:34,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 144 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:22:34,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-10-16 11:22:34,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 420. [2022-10-16 11:22:34,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 408 states have (on average 1.4362745098039216) internal successors, (586), 419 states have internal predecessors, (586), 0 states have call successors, (0), 0 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 11:22:34,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 586 transitions. [2022-10-16 11:22:34,447 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 586 transitions. Word has length 29 [2022-10-16 11:22:34,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:34,447 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 586 transitions. [2022-10-16 11:22:34,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 11:22:34,448 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 586 transitions. [2022-10-16 11:22:34,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 11:22:34,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:34,448 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:34,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:34,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:34,662 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:34,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:34,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1029073159, now seen corresponding path program 1 times [2022-10-16 11:22:34,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:34,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272291895] [2022-10-16 11:22:34,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:34,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:34,681 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:34,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695820161] [2022-10-16 11:22:34,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:34,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:34,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:34,694 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 11:22:34,698 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 11:22:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:34,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:22:34,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:34,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:34,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:34,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272291895] [2022-10-16 11:22:34,866 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:34,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695820161] [2022-10-16 11:22:34,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695820161] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:34,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:34,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:22:34,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479609318] [2022-10-16 11:22:34,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:34,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:22:34,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:34,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:22:34,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:22:34,868 INFO L87 Difference]: Start difference. First operand 420 states and 586 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:35,234 INFO L93 Difference]: Finished difference Result 809 states and 1130 transitions. [2022-10-16 11:22:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:22:35,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 11:22:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:35,240 INFO L225 Difference]: With dead ends: 809 [2022-10-16 11:22:35,240 INFO L226 Difference]: Without dead ends: 806 [2022-10-16 11:22:35,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:22:35,248 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 214 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:35,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 173 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:22:35,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-10-16 11:22:35,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 695. [2022-10-16 11:22:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 683 states have (on average 1.465592972181552) internal successors, (1001), 694 states have internal predecessors, (1001), 0 states have call successors, (0), 0 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 11:22:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1001 transitions. [2022-10-16 11:22:35,305 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1001 transitions. Word has length 29 [2022-10-16 11:22:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:35,305 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 1001 transitions. [2022-10-16 11:22:35,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1001 transitions. [2022-10-16 11:22:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 11:22:35,306 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:35,306 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:35,346 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 11:22:35,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:35,520 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:35,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1836496795, now seen corresponding path program 1 times [2022-10-16 11:22:35,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:35,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099075857] [2022-10-16 11:22:35,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:35,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:35,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376391665] [2022-10-16 11:22:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:35,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:35,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:35,541 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 11:22:35,544 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 11:22:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:35,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:22:35,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:35,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:22:35,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:35,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099075857] [2022-10-16 11:22:35,661 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:35,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376391665] [2022-10-16 11:22:35,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376391665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:22:35,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:22:35,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 11:22:35,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724647618] [2022-10-16 11:22:35,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:22:35,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:22:35,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:35,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:22:35,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:22:35,663 INFO L87 Difference]: Start difference. First operand 695 states and 1001 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:35,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:35,812 INFO L93 Difference]: Finished difference Result 767 states and 1071 transitions. [2022-10-16 11:22:35,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:22:35,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 11:22:35,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:35,816 INFO L225 Difference]: With dead ends: 767 [2022-10-16 11:22:35,817 INFO L226 Difference]: Without dead ends: 765 [2022-10-16 11:22:35,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:22:35,818 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 81 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:35,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 88 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:22:35,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-10-16 11:22:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 697. [2022-10-16 11:22:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 686 states have (on average 1.4198250728862973) internal successors, (974), 696 states have internal predecessors, (974), 0 states have call successors, (0), 0 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 11:22:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 974 transitions. [2022-10-16 11:22:35,870 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 974 transitions. Word has length 30 [2022-10-16 11:22:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:35,870 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 974 transitions. [2022-10-16 11:22:35,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 974 transitions. [2022-10-16 11:22:35,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 11:22:35,871 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:35,871 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:35,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:36,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 11:22:36,085 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:36,086 INFO L85 PathProgramCache]: Analyzing trace with hash -55093704, now seen corresponding path program 1 times [2022-10-16 11:22:36,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:36,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202242706] [2022-10-16 11:22:36,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:36,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:36,094 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:36,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631058670] [2022-10-16 11:22:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:36,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:36,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:36,096 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:36,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 11:22:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:36,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:22:36,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:22:36,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:22:36,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:36,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202242706] [2022-10-16 11:22:36,313 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:36,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631058670] [2022-10-16 11:22:36,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631058670] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:36,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:36,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 11:22:36,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593751052] [2022-10-16 11:22:36,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:36,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:22:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:36,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:22:36,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:22:36,315 INFO L87 Difference]: Start difference. First operand 697 states and 974 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 11:22:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:36,763 INFO L93 Difference]: Finished difference Result 721 states and 978 transitions. [2022-10-16 11:22:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:22:36,764 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 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 11:22:36,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:36,768 INFO L225 Difference]: With dead ends: 721 [2022-10-16 11:22:36,768 INFO L226 Difference]: Without dead ends: 690 [2022-10-16 11:22:36,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-10-16 11:22:36,769 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 104 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:36,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 162 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:22:36,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-10-16 11:22:36,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 671. [2022-10-16 11:22:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 660 states have (on average 1.4257575757575758) internal successors, (941), 670 states have internal predecessors, (941), 0 states have call successors, (0), 0 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 11:22:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 941 transitions. [2022-10-16 11:22:36,811 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 941 transitions. Word has length 31 [2022-10-16 11:22:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:36,811 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 941 transitions. [2022-10-16 11:22:36,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 11:22:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 941 transitions. [2022-10-16 11:22:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 11:22:36,812 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:36,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:36,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:37,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 11:22:37,025 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:37,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:37,026 INFO L85 PathProgramCache]: Analyzing trace with hash 363897325, now seen corresponding path program 1 times [2022-10-16 11:22:37,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:37,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581722034] [2022-10-16 11:22:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:37,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:37,035 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:37,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350807437] [2022-10-16 11:22:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:37,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:37,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:37,036 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:37,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 11:22:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:37,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:22:37,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:37,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:22:37,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:37,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581722034] [2022-10-16 11:22:37,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:37,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350807437] [2022-10-16 11:22:37,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350807437] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:22:37,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:22:37,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:22:37,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748186850] [2022-10-16 11:22:37,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:22:37,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:22:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:37,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:22:37,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:22:37,145 INFO L87 Difference]: Start difference. First operand 671 states and 941 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 11:22:37,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:37,297 INFO L93 Difference]: Finished difference Result 889 states and 1231 transitions. [2022-10-16 11:22:37,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:22:37,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 11:22:37,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:37,299 INFO L225 Difference]: With dead ends: 889 [2022-10-16 11:22:37,299 INFO L226 Difference]: Without dead ends: 294 [2022-10-16 11:22:37,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:22:37,301 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:37,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 93 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:22:37,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-10-16 11:22:37,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 287. [2022-10-16 11:22:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 276 states have (on average 1.3623188405797102) internal successors, (376), 286 states have internal predecessors, (376), 0 states have call successors, (0), 0 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 11:22:37,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 376 transitions. [2022-10-16 11:22:37,323 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 376 transitions. Word has length 32 [2022-10-16 11:22:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:37,323 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 376 transitions. [2022-10-16 11:22:37,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 11:22:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 376 transitions. [2022-10-16 11:22:37,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 11:22:37,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:37,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:37,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:37,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 11:22:37,537 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:37,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:37,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2141203246, now seen corresponding path program 1 times [2022-10-16 11:22:37,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:37,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505643413] [2022-10-16 11:22:37,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:37,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:37,546 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:37,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334636006] [2022-10-16 11:22:37,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:37,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:37,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:37,548 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:37,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 11:22:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:37,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:22:37,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:22:37,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:22:37,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:37,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505643413] [2022-10-16 11:22:37,799 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:37,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334636006] [2022-10-16 11:22:37,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334636006] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:37,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:37,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-10-16 11:22:37,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512859119] [2022-10-16 11:22:37,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:37,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:22:37,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:37,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:22:37,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:22:37,801 INFO L87 Difference]: Start difference. First operand 287 states and 376 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 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 11:22:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:38,633 INFO L93 Difference]: Finished difference Result 573 states and 744 transitions. [2022-10-16 11:22:38,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 11:22:38,634 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 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 36 [2022-10-16 11:22:38,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:38,637 INFO L225 Difference]: With dead ends: 573 [2022-10-16 11:22:38,637 INFO L226 Difference]: Without dead ends: 400 [2022-10-16 11:22:38,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 11:22:38,640 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 245 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:38,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 117 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 11:22:38,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-10-16 11:22:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 364. [2022-10-16 11:22:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 353 states have (on average 1.368271954674221) internal successors, (483), 363 states have internal predecessors, (483), 0 states have call successors, (0), 0 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 11:22:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 483 transitions. [2022-10-16 11:22:38,669 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 483 transitions. Word has length 36 [2022-10-16 11:22:38,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:38,669 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 483 transitions. [2022-10-16 11:22:38,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 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 11:22:38,670 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 483 transitions. [2022-10-16 11:22:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:22:38,670 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:38,670 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:38,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:38,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 11:22:38,886 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:38,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1673320247, now seen corresponding path program 1 times [2022-10-16 11:22:38,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:38,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023743504] [2022-10-16 11:22:38,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:38,896 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:38,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228770674] [2022-10-16 11:22:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:38,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:38,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:38,898 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:38,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 11:22:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:38,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:22:38,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:39,040 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:39,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:39,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:39,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023743504] [2022-10-16 11:22:39,114 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:39,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228770674] [2022-10-16 11:22:39,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228770674] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:39,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:39,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-10-16 11:22:39,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610421413] [2022-10-16 11:22:39,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:39,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 11:22:39,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:39,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 11:22:39,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-16 11:22:39,117 INFO L87 Difference]: Start difference. First operand 364 states and 483 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:39,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:39,649 INFO L93 Difference]: Finished difference Result 552 states and 714 transitions. [2022-10-16 11:22:39,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:22:39,650 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-16 11:22:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:39,652 INFO L225 Difference]: With dead ends: 552 [2022-10-16 11:22:39,652 INFO L226 Difference]: Without dead ends: 318 [2022-10-16 11:22:39,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:22:39,657 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 157 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:39,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 110 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:22:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-10-16 11:22:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 298. [2022-10-16 11:22:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 287 states have (on average 1.3066202090592334) internal successors, (375), 297 states have internal predecessors, (375), 0 states have call successors, (0), 0 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 11:22:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 375 transitions. [2022-10-16 11:22:39,677 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 375 transitions. Word has length 37 [2022-10-16 11:22:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:39,678 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 375 transitions. [2022-10-16 11:22:39,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 375 transitions. [2022-10-16 11:22:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:22:39,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:39,679 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:39,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:39,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 11:22:39,894 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:39,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:39,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1673314257, now seen corresponding path program 1 times [2022-10-16 11:22:39,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:39,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437259808] [2022-10-16 11:22:39,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:39,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:39,910 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:39,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23172311] [2022-10-16 11:22:39,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:39,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:39,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:39,912 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:39,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 11:22:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:39,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:22:39,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:40,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:22:40,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:40,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437259808] [2022-10-16 11:22:40,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:40,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23172311] [2022-10-16 11:22:40,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23172311] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:40,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:40,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-10-16 11:22:40,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171270700] [2022-10-16 11:22:40,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:40,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 11:22:40,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:40,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 11:22:40,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-10-16 11:22:40,135 INFO L87 Difference]: Start difference. First operand 298 states and 375 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:40,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:40,676 INFO L93 Difference]: Finished difference Result 480 states and 591 transitions. [2022-10-16 11:22:40,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 11:22:40,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-16 11:22:40,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:40,679 INFO L225 Difference]: With dead ends: 480 [2022-10-16 11:22:40,679 INFO L226 Difference]: Without dead ends: 282 [2022-10-16 11:22:40,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:22:40,680 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 110 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:40,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 153 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:22:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-16 11:22:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 260. [2022-10-16 11:22:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 249 states have (on average 1.2931726907630523) internal successors, (322), 259 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 11:22:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 322 transitions. [2022-10-16 11:22:40,701 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 322 transitions. Word has length 37 [2022-10-16 11:22:40,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:40,701 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 322 transitions. [2022-10-16 11:22:40,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:40,701 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 322 transitions. [2022-10-16 11:22:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:22:40,702 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:40,702 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:40,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:40,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:40,916 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:40,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash -227278453, now seen corresponding path program 1 times [2022-10-16 11:22:40,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:40,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264797026] [2022-10-16 11:22:40,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:40,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:40,931 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:40,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163894815] [2022-10-16 11:22:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:40,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:40,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:40,933 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:40,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 11:22:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:40,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 11:22:40,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:41,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:22:41,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:41,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264797026] [2022-10-16 11:22:41,201 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:41,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163894815] [2022-10-16 11:22:41,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163894815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:22:41,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:22:41,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 11:22:41,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161759500] [2022-10-16 11:22:41,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:22:41,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:22:41,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:41,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:22:41,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:22:41,203 INFO L87 Difference]: Start difference. First operand 260 states and 322 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 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 11:22:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:41,634 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2022-10-16 11:22:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 11:22:41,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 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 37 [2022-10-16 11:22:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:41,636 INFO L225 Difference]: With dead ends: 263 [2022-10-16 11:22:41,636 INFO L226 Difference]: Without dead ends: 262 [2022-10-16 11:22:41,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:22:41,637 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 40 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:41,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 87 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:22:41,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-10-16 11:22:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2022-10-16 11:22:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 249 states have (on average 1.285140562248996) internal successors, (320), 259 states have internal predecessors, (320), 0 states have call successors, (0), 0 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 11:22:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 320 transitions. [2022-10-16 11:22:41,670 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 320 transitions. Word has length 37 [2022-10-16 11:22:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:41,670 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 320 transitions. [2022-10-16 11:22:41,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 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 11:22:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 320 transitions. [2022-10-16 11:22:41,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:22:41,671 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:41,671 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:41,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-10-16 11:22:41,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:41,887 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:41,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1544302624, now seen corresponding path program 1 times [2022-10-16 11:22:41,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:41,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584643663] [2022-10-16 11:22:41,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:41,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:41,903 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:41,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578679711] [2022-10-16 11:22:41,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:41,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:41,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:41,907 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:41,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 11:22:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:41,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 11:22:41,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 11:22:42,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:42,569 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 11:22:42,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:42,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584643663] [2022-10-16 11:22:42,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:42,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578679711] [2022-10-16 11:22:42,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578679711] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:42,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:42,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:22:42,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910913853] [2022-10-16 11:22:42,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:42,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:22:42,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:42,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:22:42,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:22:42,572 INFO L87 Difference]: Start difference. First operand 260 states and 320 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:42,838 INFO L93 Difference]: Finished difference Result 263 states and 320 transitions. [2022-10-16 11:22:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:22:42,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 11:22:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:42,840 INFO L225 Difference]: With dead ends: 263 [2022-10-16 11:22:42,840 INFO L226 Difference]: Without dead ends: 262 [2022-10-16 11:22:42,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:22:42,841 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 79 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:42,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 64 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 31 Unchecked, 0.2s Time] [2022-10-16 11:22:42,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-10-16 11:22:42,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2022-10-16 11:22:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 249 states have (on average 1.2771084337349397) internal successors, (318), 259 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 11:22:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 318 transitions. [2022-10-16 11:22:42,859 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 318 transitions. Word has length 38 [2022-10-16 11:22:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:42,860 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 318 transitions. [2022-10-16 11:22:42,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:22:42,860 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 318 transitions. [2022-10-16 11:22:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 11:22:42,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:42,861 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:42,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:43,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:43,076 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1304898585, now seen corresponding path program 1 times [2022-10-16 11:22:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:43,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243706705] [2022-10-16 11:22:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:43,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:43,085 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:43,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438956758] [2022-10-16 11:22:43,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:43,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:43,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:43,087 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:43,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 11:22:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:43,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:22:43,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:43,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:43,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:43,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243706705] [2022-10-16 11:22:43,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:43,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438956758] [2022-10-16 11:22:43,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438956758] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:43,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:43,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 11:22:43,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721247608] [2022-10-16 11:22:43,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:43,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:22:43,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:43,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:22:43,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:22:43,317 INFO L87 Difference]: Start difference. First operand 260 states and 318 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 11:22:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:43,762 INFO L93 Difference]: Finished difference Result 269 states and 320 transitions. [2022-10-16 11:22:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:22:43,763 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 42 [2022-10-16 11:22:43,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:43,764 INFO L225 Difference]: With dead ends: 269 [2022-10-16 11:22:43,764 INFO L226 Difference]: Without dead ends: 247 [2022-10-16 11:22:43,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:22:43,765 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 151 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:43,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 132 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:22:43,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-10-16 11:22:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 229. [2022-10-16 11:22:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 218 states have (on average 1.2935779816513762) internal successors, (282), 228 states have internal predecessors, (282), 0 states have call successors, (0), 0 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 11:22:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 282 transitions. [2022-10-16 11:22:43,778 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 282 transitions. Word has length 42 [2022-10-16 11:22:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:43,778 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 282 transitions. [2022-10-16 11:22:43,778 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 11:22:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 282 transitions. [2022-10-16 11:22:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 11:22:43,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:43,779 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:43,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:43,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 11:22:43,992 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash 245663076, now seen corresponding path program 2 times [2022-10-16 11:22:43,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:43,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128787798] [2022-10-16 11:22:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:44,002 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:44,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652488636] [2022-10-16 11:22:44,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:22:44,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:44,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:44,004 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:44,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 11:22:44,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:22:44,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:22:44,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:22:44,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 11:22:44,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 11:22:44,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:44,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128787798] [2022-10-16 11:22:44,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:44,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652488636] [2022-10-16 11:22:44,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652488636] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:44,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:44,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:22:44,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212217945] [2022-10-16 11:22:44,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:44,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:22:44,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:44,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:22:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:22:44,177 INFO L87 Difference]: Start difference. First operand 229 states and 282 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 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 11:22:44,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:44,321 INFO L93 Difference]: Finished difference Result 234 states and 284 transitions. [2022-10-16 11:22:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:22:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 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) Word has length 43 [2022-10-16 11:22:44,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:44,323 INFO L225 Difference]: With dead ends: 234 [2022-10-16 11:22:44,323 INFO L226 Difference]: Without dead ends: 233 [2022-10-16 11:22:44,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-10-16 11:22:44,324 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 130 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:44,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 65 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:22:44,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-10-16 11:22:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2022-10-16 11:22:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 227 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 11:22:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 276 transitions. [2022-10-16 11:22:44,338 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 276 transitions. Word has length 43 [2022-10-16 11:22:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:44,339 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 276 transitions. [2022-10-16 11:22:44,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 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 11:22:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 276 transitions. [2022-10-16 11:22:44,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 11:22:44,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:44,340 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:44,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:44,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:44,554 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:44,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:44,556 INFO L85 PathProgramCache]: Analyzing trace with hash -140982970, now seen corresponding path program 1 times [2022-10-16 11:22:44,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:44,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978618102] [2022-10-16 11:22:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:44,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:44,569 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:44,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389826784] [2022-10-16 11:22:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:44,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:44,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:44,571 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:44,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 11:22:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:22:44,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 11:22:44,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:44,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:22:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:22:44,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:22:44,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978618102] [2022-10-16 11:22:44,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:22:44,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389826784] [2022-10-16 11:22:44,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389826784] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:22:44,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:22:44,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-10-16 11:22:44,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151836064] [2022-10-16 11:22:44,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:22:44,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:22:44,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:22:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:22:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:22:44,903 INFO L87 Difference]: Start difference. First operand 228 states and 276 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 11:22:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:22:45,468 INFO L93 Difference]: Finished difference Result 463 states and 554 transitions. [2022-10-16 11:22:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:22:45,468 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 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 45 [2022-10-16 11:22:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:22:45,470 INFO L225 Difference]: With dead ends: 463 [2022-10-16 11:22:45,470 INFO L226 Difference]: Without dead ends: 305 [2022-10-16 11:22:45,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2022-10-16 11:22:45,472 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 198 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:22:45,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 216 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:22:45,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-10-16 11:22:45,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 246. [2022-10-16 11:22:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 236 states have (on average 1.2457627118644068) internal successors, (294), 245 states have internal predecessors, (294), 0 states have call successors, (0), 0 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 11:22:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 294 transitions. [2022-10-16 11:22:45,489 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 294 transitions. Word has length 45 [2022-10-16 11:22:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:22:45,489 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 294 transitions. [2022-10-16 11:22:45,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 11:22:45,490 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 294 transitions. [2022-10-16 11:22:45,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 11:22:45,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:22:45,490 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:22:45,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-10-16 11:22:45,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 11:22:45,701 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 11:22:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:22:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash -138937894, now seen corresponding path program 2 times [2022-10-16 11:22:45,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:22:45,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954793937] [2022-10-16 11:22:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:22:45,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:22:45,715 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:22:45,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054511427] [2022-10-16 11:22:45,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:22:45,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:22:45,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:22:45,717 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:22:45,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 11:22:45,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:22:45,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:22:45,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 11:22:45,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:22:45,830 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 55 treesize of output 50 [2022-10-16 11:22:45,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 15 [2022-10-16 11:22:45,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 17 [2022-10-16 11:22:45,964 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 78 treesize of output 71 [2022-10-16 11:22:46,133 INFO L356 Elim1Store]: treesize reduction 70, result has 26.3 percent of original size [2022-10-16 11:22:46,133 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 2 case distinctions, treesize of input 70 treesize of output 148 [2022-10-16 11:22:46,242 INFO L356 Elim1Store]: treesize reduction 161, result has 9.6 percent of original size [2022-10-16 11:22:46,243 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 4 case distinctions, treesize of input 148 treesize of output 60 [2022-10-16 11:22:46,575 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 68 treesize of output 61 [2022-10-16 11:22:46,779 INFO L356 Elim1Store]: treesize reduction 42, result has 49.4 percent of original size [2022-10-16 11:22:46,779 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 2 case distinctions, treesize of input 60 treesize of output 163 [2022-10-16 11:22:47,504 INFO L356 Elim1Store]: treesize reduction 172, result has 9.5 percent of original size [2022-10-16 11:22:47,504 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 4 case distinctions, treesize of input 172 treesize of output 93 [2022-10-16 11:22:52,627 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 341 treesize of output 314 [2022-10-16 11:22:54,754 INFO L356 Elim1Store]: treesize reduction 436, result has 43.1 percent of original size [2022-10-16 11:22:54,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 371 treesize of output 649 [2022-10-16 11:24:22,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:24:47,295 WARN L233 SmtUtils]: Spent 25.03s on a formula simplification. DAG size of input: 932 DAG size of output: 296 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-10-16 11:24:47,299 INFO L356 Elim1Store]: treesize reduction 4227, result has 26.0 percent of original size [2022-10-16 11:24:47,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 19 new quantified variables, introduced 208 case distinctions, treesize of input 908 treesize of output 1954