/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/sina5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:58:59,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:58:59,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:58:59,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:58:59,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:58:59,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:58:59,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:58:59,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:58:59,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:58:59,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:58:59,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:58:59,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:58:59,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:58:59,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:58:59,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:58:59,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:58:59,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:58:59,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:58:59,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:58:59,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:58:59,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:58:59,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:58:59,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:58:59,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:58:59,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:58:59,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:58:59,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:58:59,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:58:59,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:58:59,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:58:59,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:58:59,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:58:59,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:58:59,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:58:59,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:58:59,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:58:59,739 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 10:58:59,787 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:58:59,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:58:59,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:58:59,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:58:59,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:58:59,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:58:59,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:58:59,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:58:59,790 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:58:59,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:58:59,791 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:58:59,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:58:59,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:58:59,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:58:59,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:58:59,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:58:59,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:58:59,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:58:59,792 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:58:59,793 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:58:59,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:58:59,793 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:58:59,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:58:59,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:58:59,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:58:59,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:58:59,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:58:59,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:58:59,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:58:59,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:58:59,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:58:59,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:58:59,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:58:59,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:59:00,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:59:00,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:59:00,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:59:00,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:59:00,192 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:59:00,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina5f.c [2022-10-16 10:59:00,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51febf8d6/42a7741530e041e788635cefae29a9ff/FLAG44d9d02fa [2022-10-16 10:59:00,825 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:59:00,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina5f.c [2022-10-16 10:59:00,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51febf8d6/42a7741530e041e788635cefae29a9ff/FLAG44d9d02fa [2022-10-16 10:59:01,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51febf8d6/42a7741530e041e788635cefae29a9ff [2022-10-16 10:59:01,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:59:01,219 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:59:01,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:59:01,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:59:01,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:59:01,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f44109e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01, skipping insertion in model container [2022-10-16 10:59:01,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:59:01,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:59:01,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina5f.c[589,602] [2022-10-16 10:59:01,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:59:01,582 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:59:01,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina5f.c[589,602] [2022-10-16 10:59:01,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:59:01,644 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:59:01,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01 WrapperNode [2022-10-16 10:59:01,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:59:01,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:59:01,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:59:01,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:59:01,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,691 INFO L138 Inliner]: procedures = 17, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 129 [2022-10-16 10:59:01,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:59:01,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:59:01,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:59:01,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:59:01,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,722 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:59:01,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:59:01,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:59:01,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:59:01,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (1/1) ... [2022-10-16 10:59:01,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:59:01,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:01,775 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 10:59:01,799 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 10:59:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:59:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:59:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:59:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:59:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:59:01,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:59:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:59:01,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:59:01,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:59:01,929 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:59:01,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:59:02,257 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:59:02,275 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:59:02,276 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-16 10:59:02,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:59:02 BoogieIcfgContainer [2022-10-16 10:59:02,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:59:02,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:59:02,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:59:02,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:59:02,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:59:01" (1/3) ... [2022-10-16 10:59:02,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d80e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:59:02, skipping insertion in model container [2022-10-16 10:59:02,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:59:01" (2/3) ... [2022-10-16 10:59:02,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d80e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:59:02, skipping insertion in model container [2022-10-16 10:59:02,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:59:02" (3/3) ... [2022-10-16 10:59:02,325 INFO L112 eAbstractionObserver]: Analyzing ICFG sina5f.c [2022-10-16 10:59:02,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:59:02,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-16 10:59:02,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:59:02,450 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;@248279c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:59:02,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-16 10:59:02,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 48 states have (on average 1.7291666666666667) internal successors, (83), 68 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:02,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:59:02,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:02,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:02,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:02,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash 177631151, now seen corresponding path program 1 times [2022-10-16 10:59:02,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:02,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850021001] [2022-10-16 10:59:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:02,654 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 10:59:02,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:02,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850021001] [2022-10-16 10:59:02,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850021001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:02,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:59:02,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:59:02,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272097616] [2022-10-16 10:59:02,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:02,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:59:02,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:02,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:59:02,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:59:02,700 INFO L87 Difference]: Start difference. First operand has 69 states, 48 states have (on average 1.7291666666666667) internal successors, (83), 68 states have internal predecessors, (83), 0 states have call successors, (0), 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 10:59:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:02,726 INFO L93 Difference]: Finished difference Result 134 states and 160 transitions. [2022-10-16 10:59:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:59:02,729 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 10:59:02,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:02,739 INFO L225 Difference]: With dead ends: 134 [2022-10-16 10:59:02,739 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 10:59:02,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:59:02,748 INFO L413 NwaCegarLoop]: 75 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, 75 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 10:59:02,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:59:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 10:59:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-10-16 10:59:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 63 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2022-10-16 10:59:02,790 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 8 [2022-10-16 10:59:02,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:02,791 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2022-10-16 10:59:02,791 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 10:59:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2022-10-16 10:59:02,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:59:02,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:02,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:02,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:59:02,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:02,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:02,794 INFO L85 PathProgramCache]: Analyzing trace with hash 179478193, now seen corresponding path program 1 times [2022-10-16 10:59:02,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:02,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137768971] [2022-10-16 10:59:02,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:02,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:03,031 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 10:59:03,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:03,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137768971] [2022-10-16 10:59:03,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137768971] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:03,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:59:03,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:59:03,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075062420] [2022-10-16 10:59:03,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:03,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:59:03,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:59:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:59:03,042 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:03,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:03,183 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2022-10-16 10:59:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:59:03,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:59:03,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:03,186 INFO L225 Difference]: With dead ends: 123 [2022-10-16 10:59:03,187 INFO L226 Difference]: Without dead ends: 121 [2022-10-16 10:59:03,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:59:03,189 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 51 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:03,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 133 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:03,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-16 10:59:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 68. [2022-10-16 10:59:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 67 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2022-10-16 10:59:03,202 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 8 [2022-10-16 10:59:03,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:03,202 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2022-10-16 10:59:03,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:03,203 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2022-10-16 10:59:03,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:59:03,203 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:03,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:03,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:59:03,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:03,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:03,205 INFO L85 PathProgramCache]: Analyzing trace with hash 678258679, now seen corresponding path program 1 times [2022-10-16 10:59:03,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:03,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023308148] [2022-10-16 10:59:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:03,305 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 10:59:03,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:03,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023308148] [2022-10-16 10:59:03,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023308148] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:03,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:59:03,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:59:03,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167644580] [2022-10-16 10:59:03,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:03,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:59:03,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:03,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:59:03,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:59:03,309 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand has 4 states, 4 states have (on average 2.5) 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 10:59:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:03,419 INFO L93 Difference]: Finished difference Result 167 states and 183 transitions. [2022-10-16 10:59:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:59:03,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) 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 10:59:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:03,422 INFO L225 Difference]: With dead ends: 167 [2022-10-16 10:59:03,422 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 10:59:03,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:59:03,425 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 110 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:03,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 78 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:03,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 10:59:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 71. [2022-10-16 10:59:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 70 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2022-10-16 10:59:03,439 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 10 [2022-10-16 10:59:03,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:03,440 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2022-10-16 10:59:03,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) 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 10:59:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2022-10-16 10:59:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:59:03,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:03,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:03,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:59:03,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash 504169901, now seen corresponding path program 1 times [2022-10-16 10:59:03,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:03,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629193207] [2022-10-16 10:59:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:03,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:03,629 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 10:59:03,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:03,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629193207] [2022-10-16 10:59:03,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629193207] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:03,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008352581] [2022-10-16 10:59:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:03,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:03,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:03,632 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 10:59:03,636 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 10:59:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:03,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:59:03,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:03,778 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 10:59:03,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:03,830 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 10:59:03,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008352581] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:03,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:03,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:59:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581429939] [2022-10-16 10:59:03,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:03,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:59:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:59:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:59:03,834 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 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 10:59:04,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:04,039 INFO L93 Difference]: Finished difference Result 133 states and 143 transitions. [2022-10-16 10:59:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:59:04,040 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 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 12 [2022-10-16 10:59:04,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:04,043 INFO L225 Difference]: With dead ends: 133 [2022-10-16 10:59:04,043 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 10:59:04,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:59:04,046 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:04,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 318 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 10:59:04,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 82. [2022-10-16 10:59:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 81 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2022-10-16 10:59:04,078 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 12 [2022-10-16 10:59:04,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:04,082 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2022-10-16 10:59:04,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 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 10:59:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2022-10-16 10:59:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:59:04,083 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:04,083 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:04,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 10:59:04,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:04,300 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:04,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1550602195, now seen corresponding path program 1 times [2022-10-16 10:59:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:04,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61068082] [2022-10-16 10:59:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:04,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:04,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61068082] [2022-10-16 10:59:04,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61068082] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:04,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490519619] [2022-10-16 10:59:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:04,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:04,494 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 10:59:04,501 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 10:59:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:04,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:59:04,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:04,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:59:04,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490519619] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:04,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:59:04,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:59:04,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640686699] [2022-10-16 10:59:04,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:04,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:59:04,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:04,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:59:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:59:04,603 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:04,699 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2022-10-16 10:59:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:59:04,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 10:59:04,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:04,701 INFO L225 Difference]: With dead ends: 125 [2022-10-16 10:59:04,702 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 10:59:04,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:59:04,704 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 52 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:04,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 164 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:04,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 10:59:04,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 81. [2022-10-16 10:59:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 80 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2022-10-16 10:59:04,716 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 13 [2022-10-16 10:59:04,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:04,716 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2022-10-16 10:59:04,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2022-10-16 10:59:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:59:04,718 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:04,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:04,758 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 10:59:04,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:04,932 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:04,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash -825622541, now seen corresponding path program 1 times [2022-10-16 10:59:04,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:04,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251994960] [2022-10-16 10:59:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:04,998 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 10:59:04,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:04,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251994960] [2022-10-16 10:59:04,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251994960] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:04,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:59:04,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:59:04,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070261645] [2022-10-16 10:59:04,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:05,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:59:05,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:05,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:59:05,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:59:05,001 INFO L87 Difference]: Start difference. First operand 81 states and 89 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 10:59:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:05,071 INFO L93 Difference]: Finished difference Result 124 states and 132 transitions. [2022-10-16 10:59:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:59:05,071 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 10:59:05,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:05,072 INFO L225 Difference]: With dead ends: 124 [2022-10-16 10:59:05,073 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 10:59:05,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:59:05,075 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 43 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:05,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 137 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:05,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 10:59:05,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 84. [2022-10-16 10:59:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 66 states have (on average 1.393939393939394) internal successors, (92), 83 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2022-10-16 10:59:05,085 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 14 [2022-10-16 10:59:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:05,085 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2022-10-16 10:59:05,085 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 10:59:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2022-10-16 10:59:05,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:59:05,087 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:05,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:05,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:59:05,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:05,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:05,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1496738415, now seen corresponding path program 1 times [2022-10-16 10:59:05,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:05,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768711458] [2022-10-16 10:59:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:05,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:05,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:05,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:05,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768711458] [2022-10-16 10:59:05,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768711458] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:05,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082236019] [2022-10-16 10:59:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:05,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:05,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:05,206 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 10:59:05,224 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 10:59:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:05,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:59:05,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:05,371 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 10:59:05,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:05,455 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 10:59:05,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082236019] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:05,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:05,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 15 [2022-10-16 10:59:05,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17329928] [2022-10-16 10:59:05,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:05,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:59:05,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:05,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:59:05,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:59:05,458 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:05,855 INFO L93 Difference]: Finished difference Result 272 states and 292 transitions. [2022-10-16 10:59:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:59:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 10:59:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:05,857 INFO L225 Difference]: With dead ends: 272 [2022-10-16 10:59:05,858 INFO L226 Difference]: Without dead ends: 218 [2022-10-16 10:59:05,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:59:05,860 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 247 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:05,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 466 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:59:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-10-16 10:59:05,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 126. [2022-10-16 10:59:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 108 states have (on average 1.4074074074074074) internal successors, (152), 125 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2022-10-16 10:59:05,907 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 18 [2022-10-16 10:59:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:05,912 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2022-10-16 10:59:05,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:05,914 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2022-10-16 10:59:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:59:05,914 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:05,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:05,950 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 10:59:06,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:06,116 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:06,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:06,117 INFO L85 PathProgramCache]: Analyzing trace with hash -845800761, now seen corresponding path program 1 times [2022-10-16 10:59:06,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:06,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860926029] [2022-10-16 10:59:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:06,865 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 10:59:06,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:06,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860926029] [2022-10-16 10:59:06,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860926029] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:06,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229075072] [2022-10-16 10:59:06,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:06,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:06,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:06,868 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 10:59:06,894 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 10:59:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:06,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:59:06,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:06,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:07,007 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:59:07,009 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 28 treesize of output 24 [2022-10-16 10:59:07,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:59:07,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:59:07,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:07,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-10-16 10:59:07,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:59:07,355 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 10:59:07,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:07,426 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_186 (Array Int Int))) (< (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_186))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808)) is different from false [2022-10-16 10:59:07,471 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_184 Int) (v_ArrVal_186 (Array Int Int))) (or (not (<= v_ArrVal_184 1)) (< (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_184)) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_186))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) 9223372036854775808))) is different from false [2022-10-16 10:59:07,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 10:59:07,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229075072] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:07,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:07,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2022-10-16 10:59:07,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766014365] [2022-10-16 10:59:07,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:07,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:59:07,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:07,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:59:07,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=186, Unknown=2, NotChecked=58, Total=306 [2022-10-16 10:59:07,518 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:08,024 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2022-10-16 10:59:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:59:08,025 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 10:59:08,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:08,026 INFO L225 Difference]: With dead ends: 158 [2022-10-16 10:59:08,026 INFO L226 Difference]: Without dead ends: 156 [2022-10-16 10:59:08,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=381, Unknown=2, NotChecked=86, Total=600 [2022-10-16 10:59:08,028 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 88 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:08,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 444 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 200 Invalid, 0 Unknown, 100 Unchecked, 0.2s Time] [2022-10-16 10:59:08,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-16 10:59:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 130. [2022-10-16 10:59:08,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 112 states have (on average 1.3928571428571428) internal successors, (156), 129 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 156 transitions. [2022-10-16 10:59:08,042 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 156 transitions. Word has length 19 [2022-10-16 10:59:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:08,042 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 156 transitions. [2022-10-16 10:59:08,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 156 transitions. [2022-10-16 10:59:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:59:08,044 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:08,044 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] [2022-10-16 10:59:08,085 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 10:59:08,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:08,258 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:08,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:08,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1322746103, now seen corresponding path program 1 times [2022-10-16 10:59:08,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:08,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735085741] [2022-10-16 10:59:08,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:08,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:08,331 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 10:59:08,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:08,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735085741] [2022-10-16 10:59:08,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735085741] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:08,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:59:08,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:59:08,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228343139] [2022-10-16 10:59:08,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:08,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:59:08,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:59:08,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:59:08,334 INFO L87 Difference]: Start difference. First operand 130 states and 156 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:08,399 INFO L93 Difference]: Finished difference Result 185 states and 223 transitions. [2022-10-16 10:59:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:59:08,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-16 10:59:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:08,401 INFO L225 Difference]: With dead ends: 185 [2022-10-16 10:59:08,401 INFO L226 Difference]: Without dead ends: 183 [2022-10-16 10:59:08,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:59:08,402 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 37 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:08,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 137 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:59:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-10-16 10:59:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 136. [2022-10-16 10:59:08,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 135 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2022-10-16 10:59:08,415 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 22 [2022-10-16 10:59:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:08,415 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2022-10-16 10:59:08,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2022-10-16 10:59:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:59:08,416 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:08,417 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:08,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 10:59:08,417 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:08,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1488947009, now seen corresponding path program 1 times [2022-10-16 10:59:08,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:08,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976136907] [2022-10-16 10:59:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:08,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:59:08,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:08,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976136907] [2022-10-16 10:59:08,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976136907] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:08,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651285792] [2022-10-16 10:59:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:08,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:08,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:08,494 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 10:59:08,515 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 10:59:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:08,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:59:08,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:59:08,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:59:08,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651285792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:08,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:59:08,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:59:08,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599884683] [2022-10-16 10:59:08,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:08,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:59:08,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:08,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:59:08,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:59:08,597 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:08,697 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2022-10-16 10:59:08,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:59:08,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:59:08,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:08,698 INFO L225 Difference]: With dead ends: 183 [2022-10-16 10:59:08,699 INFO L226 Difference]: Without dead ends: 182 [2022-10-16 10:59:08,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:59:08,700 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 45 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:08,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 203 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:08,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-10-16 10:59:08,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 135. [2022-10-16 10:59:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 134 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 161 transitions. [2022-10-16 10:59:08,711 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 161 transitions. Word has length 23 [2022-10-16 10:59:08,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:08,712 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 161 transitions. [2022-10-16 10:59:08,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:08,712 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 161 transitions. [2022-10-16 10:59:08,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:59:08,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:08,713 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:08,758 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 10:59:08,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 10:59:08,930 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:08,931 INFO L85 PathProgramCache]: Analyzing trace with hash -897513823, now seen corresponding path program 2 times [2022-10-16 10:59:08,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:08,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202120498] [2022-10-16 10:59:08,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:08,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:09,092 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:09,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:09,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202120498] [2022-10-16 10:59:09,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202120498] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:09,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145894198] [2022-10-16 10:59:09,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:59:09,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:09,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:09,095 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 10:59:09,113 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 10:59:09,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:59:09,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:59:09,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:59:09,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:59:09,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:09,260 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:59:09,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145894198] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:09,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:09,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:59:09,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267764654] [2022-10-16 10:59:09,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:09,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:59:09,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:59:09,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:59:09,263 INFO L87 Difference]: Start difference. First operand 135 states and 161 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:09,532 INFO L93 Difference]: Finished difference Result 192 states and 231 transitions. [2022-10-16 10:59:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:59:09,532 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 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 10:59:09,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:09,534 INFO L225 Difference]: With dead ends: 192 [2022-10-16 10:59:09,534 INFO L226 Difference]: Without dead ends: 191 [2022-10-16 10:59:09,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:59:09,536 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 302 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:09,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 147 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:09,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-10-16 10:59:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 124. [2022-10-16 10:59:09,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 123 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2022-10-16 10:59:09,550 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 24 [2022-10-16 10:59:09,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:09,551 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2022-10-16 10:59:09,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:09,551 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2022-10-16 10:59:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:59:09,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:09,552 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] [2022-10-16 10:59:09,595 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 10:59:09,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:09,767 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash -395689331, now seen corresponding path program 1 times [2022-10-16 10:59:09,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:09,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891284549] [2022-10-16 10:59:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:09,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:09,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:09,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891284549] [2022-10-16 10:59:09,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891284549] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:09,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467730801] [2022-10-16 10:59:09,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:09,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:09,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:09,903 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 10:59:09,905 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 10:59:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:09,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:59:09,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:10,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:10,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467730801] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:10,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:10,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:59:10,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447967126] [2022-10-16 10:59:10,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:10,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:59:10,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:10,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:59:10,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:59:10,119 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 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 10:59:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:10,387 INFO L93 Difference]: Finished difference Result 290 states and 330 transitions. [2022-10-16 10:59:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:59:10,387 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 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 25 [2022-10-16 10:59:10,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:10,389 INFO L225 Difference]: With dead ends: 290 [2022-10-16 10:59:10,389 INFO L226 Difference]: Without dead ends: 245 [2022-10-16 10:59:10,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:59:10,391 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 251 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:10,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 359 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:59:10,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-10-16 10:59:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 132. [2022-10-16 10:59:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 131 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 156 transitions. [2022-10-16 10:59:10,404 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 156 transitions. Word has length 25 [2022-10-16 10:59:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:10,404 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 156 transitions. [2022-10-16 10:59:10,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 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 10:59:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 156 transitions. [2022-10-16 10:59:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 10:59:10,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:10,406 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:10,444 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 10:59:10,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:10,621 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:10,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:10,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1201818393, now seen corresponding path program 2 times [2022-10-16 10:59:10,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:10,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566817270] [2022-10-16 10:59:10,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:10,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:10,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:10,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566817270] [2022-10-16 10:59:10,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566817270] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:10,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046318567] [2022-10-16 10:59:10,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:59:10,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:10,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:10,800 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 10:59:10,814 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 10:59:10,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:59:10,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:59:10,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:59:10,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:10,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:59:10,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:59:10,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046318567] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:10,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:10,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-10-16 10:59:10,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017000715] [2022-10-16 10:59:10,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:10,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:59:10,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:10,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:59:10,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:59:10,974 INFO L87 Difference]: Start difference. First operand 132 states and 156 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:11,481 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2022-10-16 10:59:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:59:11,482 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 10:59:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:11,484 INFO L225 Difference]: With dead ends: 389 [2022-10-16 10:59:11,484 INFO L226 Difference]: Without dead ends: 331 [2022-10-16 10:59:11,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:59:11,486 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 412 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:11,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 347 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:59:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-10-16 10:59:11,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 143. [2022-10-16 10:59:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 128 states have (on average 1.3203125) internal successors, (169), 142 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:11,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 169 transitions. [2022-10-16 10:59:11,501 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 169 transitions. Word has length 26 [2022-10-16 10:59:11,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:11,502 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 169 transitions. [2022-10-16 10:59:11,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 169 transitions. [2022-10-16 10:59:11,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:59:11,503 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:11,503 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 10:59:11,545 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 10:59:11,717 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,SelfDestructingSolverStorable12 [2022-10-16 10:59:11,717 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:11,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:11,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1994597725, now seen corresponding path program 1 times [2022-10-16 10:59:11,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:11,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425643136] [2022-10-16 10:59:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:11,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:12,753 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 10:59:12,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:12,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425643136] [2022-10-16 10:59:12,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425643136] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:12,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231379338] [2022-10-16 10:59:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:12,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:12,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:12,756 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 10:59:12,764 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 10:59:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:12,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 38 conjunts are in the unsatisfiable core [2022-10-16 10:59:12,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:12,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:59:12,888 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:59:12,889 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 23 treesize of output 19 [2022-10-16 10:59:12,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:59:13,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-10-16 10:59:13,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-10-16 10:59:13,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2022-10-16 10:59:13,693 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 10:59:13,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:14,447 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 10:59:14,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231379338] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:14,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:14,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-10-16 10:59:14,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797200734] [2022-10-16 10:59:14,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:14,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 10:59:14,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:14,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 10:59:14,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2022-10-16 10:59:14,450 INFO L87 Difference]: Start difference. First operand 143 states and 169 transitions. Second operand has 29 states, 28 states have (on average 2.607142857142857) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:15,251 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2022-10-16 10:59:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:59:15,252 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.607142857142857) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 10:59:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:15,253 INFO L225 Difference]: With dead ends: 164 [2022-10-16 10:59:15,253 INFO L226 Difference]: Without dead ends: 163 [2022-10-16 10:59:15,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=242, Invalid=1090, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 10:59:15,255 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 66 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 271 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:15,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 653 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 271 Unchecked, 0.2s Time] [2022-10-16 10:59:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-16 10:59:15,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2022-10-16 10:59:15,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 139 states have (on average 1.3021582733812949) internal successors, (181), 153 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 181 transitions. [2022-10-16 10:59:15,271 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 181 transitions. Word has length 27 [2022-10-16 10:59:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:15,271 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 181 transitions. [2022-10-16 10:59:15,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.607142857142857) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 181 transitions. [2022-10-16 10:59:15,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:59:15,272 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:15,273 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 10:59:15,318 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 10:59:15,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:59:15,487 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1702987445, now seen corresponding path program 1 times [2022-10-16 10:59:15,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874914832] [2022-10-16 10:59:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:15,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:16,511 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 10:59:16,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:16,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874914832] [2022-10-16 10:59:16,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874914832] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:16,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478095023] [2022-10-16 10:59:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:16,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:16,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:16,514 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 10:59:16,551 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 10:59:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:16,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 10:59:16,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:16,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:59:16,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:16,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:59:16,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:16,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-10-16 10:59:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:16,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:18,161 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 170 treesize of output 162 [2022-10-16 10:59:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:18,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478095023] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:18,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:18,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 22 [2022-10-16 10:59:18,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690878298] [2022-10-16 10:59:18,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:18,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 10:59:18,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:18,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 10:59:18,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=408, Unknown=2, NotChecked=0, Total=506 [2022-10-16 10:59:18,957 INFO L87 Difference]: Start difference. First operand 154 states and 181 transitions. Second operand has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:19,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:19,889 INFO L93 Difference]: Finished difference Result 300 states and 362 transitions. [2022-10-16 10:59:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 10:59:19,890 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 10:59:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:19,892 INFO L225 Difference]: With dead ends: 300 [2022-10-16 10:59:19,892 INFO L226 Difference]: Without dead ends: 299 [2022-10-16 10:59:19,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=303, Invalid=1101, Unknown=2, NotChecked=0, Total=1406 [2022-10-16 10:59:19,894 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 465 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:19,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 534 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 368 Invalid, 0 Unknown, 14 Unchecked, 0.3s Time] [2022-10-16 10:59:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-10-16 10:59:19,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 158. [2022-10-16 10:59:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 143 states have (on average 1.3076923076923077) internal successors, (187), 157 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 187 transitions. [2022-10-16 10:59:19,914 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 187 transitions. Word has length 28 [2022-10-16 10:59:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:19,914 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 187 transitions. [2022-10-16 10:59:19,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 187 transitions. [2022-10-16 10:59:19,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:59:19,915 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:19,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:19,959 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 10:59:20,129 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,SelfDestructingSolverStorable14 [2022-10-16 10:59:20,129 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:20,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:20,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1409495825, now seen corresponding path program 2 times [2022-10-16 10:59:20,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:20,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683889142] [2022-10-16 10:59:20,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:20,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:59:20,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:20,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683889142] [2022-10-16 10:59:20,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683889142] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:20,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985907118] [2022-10-16 10:59:20,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:59:20,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:20,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:20,250 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 10:59:20,262 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 10:59:20,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:59:20,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:59:20,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:59:20,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:59:20,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:59:20,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985907118] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:20,491 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:20,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:59:20,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91063448] [2022-10-16 10:59:20,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:20,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:59:20,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:20,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:59:20,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:59:20,494 INFO L87 Difference]: Start difference. First operand 158 states and 187 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 10:59:20,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:20,886 INFO L93 Difference]: Finished difference Result 318 states and 360 transitions. [2022-10-16 10:59:20,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:59:20,887 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 29 [2022-10-16 10:59:20,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:20,889 INFO L225 Difference]: With dead ends: 318 [2022-10-16 10:59:20,890 INFO L226 Difference]: Without dead ends: 253 [2022-10-16 10:59:20,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:59:20,891 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 293 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:20,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 479 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:59:20,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-10-16 10:59:20,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 150. [2022-10-16 10:59:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.3037037037037038) internal successors, (176), 149 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2022-10-16 10:59:20,912 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 29 [2022-10-16 10:59:20,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:20,913 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2022-10-16 10:59:20,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 10:59:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2022-10-16 10:59:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:59:20,915 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:20,915 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, 1, 1] [2022-10-16 10:59:20,960 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 10:59:21,130 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,SelfDestructingSolverStorable15 [2022-10-16 10:59:21,130 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash 188398583, now seen corresponding path program 1 times [2022-10-16 10:59:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:21,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624470070] [2022-10-16 10:59:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:21,186 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 10:59:21,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:21,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624470070] [2022-10-16 10:59:21,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624470070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:21,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:59:21,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:59:21,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142271430] [2022-10-16 10:59:21,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:21,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:59:21,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:21,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:59:21,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:59:21,189 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:21,263 INFO L93 Difference]: Finished difference Result 192 states and 225 transitions. [2022-10-16 10:59:21,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:59:21,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 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 10:59:21,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:21,265 INFO L225 Difference]: With dead ends: 192 [2022-10-16 10:59:21,265 INFO L226 Difference]: Without dead ends: 190 [2022-10-16 10:59:21,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:59:21,267 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:21,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 130 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:59:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-10-16 10:59:21,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 156. [2022-10-16 10:59:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 141 states have (on average 1.2907801418439717) internal successors, (182), 155 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 182 transitions. [2022-10-16 10:59:21,285 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 182 transitions. Word has length 30 [2022-10-16 10:59:21,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:21,285 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 182 transitions. [2022-10-16 10:59:21,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 182 transitions. [2022-10-16 10:59:21,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:59:21,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:21,286 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:21,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 10:59:21,287 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:21,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:21,287 INFO L85 PathProgramCache]: Analyzing trace with hash -939950877, now seen corresponding path program 1 times [2022-10-16 10:59:21,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:21,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825434949] [2022-10-16 10:59:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:21,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:59:21,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825434949] [2022-10-16 10:59:21,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825434949] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39419916] [2022-10-16 10:59:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:21,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:21,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:21,443 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 10:59:21,463 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 10:59:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:21,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:59:21,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:59:21,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:59:21,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39419916] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:21,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:21,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:59:21,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460236213] [2022-10-16 10:59:21,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:21,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:59:21,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:59:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:59:21,712 INFO L87 Difference]: Start difference. First operand 156 states and 182 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 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 10:59:21,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:21,988 INFO L93 Difference]: Finished difference Result 270 states and 305 transitions. [2022-10-16 10:59:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:59:21,988 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 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 33 [2022-10-16 10:59:21,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:21,990 INFO L225 Difference]: With dead ends: 270 [2022-10-16 10:59:21,990 INFO L226 Difference]: Without dead ends: 237 [2022-10-16 10:59:21,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:59:21,992 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 342 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:21,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 325 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:59:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-10-16 10:59:22,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 161. [2022-10-16 10:59:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.2808219178082192) internal successors, (187), 160 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 187 transitions. [2022-10-16 10:59:22,010 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 187 transitions. Word has length 33 [2022-10-16 10:59:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:22,010 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 187 transitions. [2022-10-16 10:59:22,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 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 10:59:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 187 transitions. [2022-10-16 10:59:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:59:22,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:22,012 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:22,050 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 10:59:22,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 10:59:22,226 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:22,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1206436117, now seen corresponding path program 3 times [2022-10-16 10:59:22,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:22,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577291104] [2022-10-16 10:59:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:22,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:23,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:23,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577291104] [2022-10-16 10:59:23,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577291104] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:23,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838227798] [2022-10-16 10:59:23,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:59:23,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:23,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:23,493 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 10:59:23,513 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 10:59:23,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:59:23,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:59:23,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 10:59:23,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:23,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:23,619 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:59:23,620 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 28 treesize of output 24 [2022-10-16 10:59:23,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:59:23,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:59:23,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:23,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-10-16 10:59:23,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:23,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2022-10-16 10:59:24,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:24,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2022-10-16 10:59:24,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:59:24,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:24,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2022-10-16 10:59:24,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2022-10-16 10:59:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:24,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:24,992 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_591 (Array Int Int)) (v_ArrVal_593 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_591))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_593 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_593)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_593))))) is different from false [2022-10-16 10:59:25,102 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_588 Int) (v_ArrVal_591 (Array Int Int)) (v_ArrVal_593 Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_588)) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_591))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (not (<= v_ArrVal_588 1)) (< (+ (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_593) (< (+ v_ArrVal_593 (select (select (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_593)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808))))) is different from false [2022-10-16 10:59:25,129 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_588 Int) (v_ArrVal_591 (Array Int Int)) (v_ArrVal_593 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |c_ULTIMATE.start_main_#t~post7#1|)) v_ArrVal_588)) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_591))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (not (<= v_ArrVal_588 1)) (< (+ (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_593) (< (+ v_ArrVal_593 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_593)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808))))) is different from false [2022-10-16 10:59:25,180 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_588 Int) (v_ArrVal_591 (Array Int Int)) (v_ArrVal_593 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_588)) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_591))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_593 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_593)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (not (<= v_ArrVal_588 1)) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_593))))) is different from false [2022-10-16 10:59:25,216 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_588 Int) (v_ArrVal_586 Int) (v_ArrVal_591 (Array Int Int)) (v_ArrVal_593 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse2 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_586) (+ .cse2 8 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_588))) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_591))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (not (<= v_ArrVal_588 1)) (not (<= v_ArrVal_586 1)) (< (+ v_ArrVal_593 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_593)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_593))))) is different from false [2022-10-16 10:59:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 11 not checked. [2022-10-16 10:59:25,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838227798] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:25,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:25,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 38 [2022-10-16 10:59:25,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769667019] [2022-10-16 10:59:25,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:25,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 10:59:25,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:25,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 10:59:25,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=999, Unknown=5, NotChecked=340, Total=1482 [2022-10-16 10:59:25,275 INFO L87 Difference]: Start difference. First operand 161 states and 187 transitions. Second operand has 39 states, 38 states have (on average 2.3947368421052633) internal successors, (91), 39 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:27,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:27,050 INFO L93 Difference]: Finished difference Result 186 states and 219 transitions. [2022-10-16 10:59:27,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 10:59:27,051 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.3947368421052633) internal successors, (91), 39 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 10:59:27,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:27,052 INFO L225 Difference]: With dead ends: 186 [2022-10-16 10:59:27,052 INFO L226 Difference]: Without dead ends: 185 [2022-10-16 10:59:27,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=309, Invalid=1962, Unknown=5, NotChecked=480, Total=2756 [2022-10-16 10:59:27,054 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 92 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 463 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:27,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1154 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 835 Invalid, 0 Unknown, 463 Unchecked, 0.6s Time] [2022-10-16 10:59:27,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-10-16 10:59:27,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 165. [2022-10-16 10:59:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 164 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 193 transitions. [2022-10-16 10:59:27,073 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 193 transitions. Word has length 33 [2022-10-16 10:59:27,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:27,074 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 193 transitions. [2022-10-16 10:59:27,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.3947368421052633) internal successors, (91), 39 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 193 transitions. [2022-10-16 10:59:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 10:59:27,075 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:27,075 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:27,116 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 10:59:27,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:27,289 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:27,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1255185945, now seen corresponding path program 1 times [2022-10-16 10:59:27,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:27,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917451563] [2022-10-16 10:59:27,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:27,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:28,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:28,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917451563] [2022-10-16 10:59:28,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917451563] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:28,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847496744] [2022-10-16 10:59:28,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:28,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:28,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:28,007 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 10:59:28,027 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 10:59:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:28,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 10:59:28,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:28,113 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:59:28,114 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 54 treesize of output 50 [2022-10-16 10:59:28,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:59:28,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:59:28,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:59:28,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:59:28,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 10:59:28,541 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:28,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:31,021 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_644 Int)) (or (< (+ v_ArrVal_644 9223372036854775808) 0) (< 0 (+ v_ArrVal_644 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_644)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2022-10-16 10:59:31,068 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_642 (Array Int Int)) (v_ArrVal_644 Int)) (or (< (+ v_ArrVal_644 9223372036854775808) 0) (< 0 (+ v_ArrVal_644 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_642))) (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_644))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2022-10-16 10:59:31,156 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:59:31,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 39 [2022-10-16 10:59:31,167 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:59:31,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 362 treesize of output 352 [2022-10-16 10:59:31,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 406 treesize of output 374 [2022-10-16 10:59:31,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 210 [2022-10-16 10:59:31,293 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:59:31,293 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 294 treesize of output 282 [2022-10-16 10:59:31,723 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 10 not checked. [2022-10-16 10:59:31,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847496744] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:31,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:31,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 29 [2022-10-16 10:59:31,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431438263] [2022-10-16 10:59:31,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:31,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 10:59:31,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:31,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 10:59:31,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=670, Unknown=3, NotChecked=106, Total=870 [2022-10-16 10:59:31,726 INFO L87 Difference]: Start difference. First operand 165 states and 193 transitions. Second operand has 30 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 30 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:32,719 INFO L93 Difference]: Finished difference Result 250 states and 293 transitions. [2022-10-16 10:59:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:59:32,719 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 30 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 10:59:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:32,721 INFO L225 Difference]: With dead ends: 250 [2022-10-16 10:59:32,721 INFO L226 Difference]: Without dead ends: 249 [2022-10-16 10:59:32,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 50 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=193, Invalid=1072, Unknown=3, NotChecked=138, Total=1406 [2022-10-16 10:59:32,723 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 348 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 335 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:32,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1251 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 849 Invalid, 0 Unknown, 335 Unchecked, 0.5s Time] [2022-10-16 10:59:32,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-16 10:59:32,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 167. [2022-10-16 10:59:32,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 152 states have (on average 1.2828947368421053) internal successors, (195), 166 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:32,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 195 transitions. [2022-10-16 10:59:32,743 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 195 transitions. Word has length 34 [2022-10-16 10:59:32,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:32,744 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 195 transitions. [2022-10-16 10:59:32,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 30 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:32,744 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 195 transitions. [2022-10-16 10:59:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 10:59:32,745 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:32,745 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:32,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-10-16 10:59:32,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:32,961 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:32,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:32,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1349704461, now seen corresponding path program 1 times [2022-10-16 10:59:32,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:32,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029409434] [2022-10-16 10:59:32,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:32,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:34,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:34,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029409434] [2022-10-16 10:59:34,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029409434] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:34,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937839865] [2022-10-16 10:59:34,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:34,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:34,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:34,209 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 10:59:34,232 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 10:59:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:34,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 10:59:34,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:34,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:59:34,321 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:59:34,321 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 23 treesize of output 19 [2022-10-16 10:59:34,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:59:34,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-10-16 10:59:34,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-10-16 10:59:35,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2022-10-16 10:59:35,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 18 [2022-10-16 10:59:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:35,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:39,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937839865] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:39,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:39,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-10-16 10:59:39,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53850323] [2022-10-16 10:59:39,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:39,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 10:59:39,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:39,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 10:59:39,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1189, Unknown=1, NotChecked=0, Total=1406 [2022-10-16 10:59:39,292 INFO L87 Difference]: Start difference. First operand 167 states and 195 transitions. Second operand has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 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 10:59:40,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:40,374 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2022-10-16 10:59:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:59:40,375 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 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) Word has length 35 [2022-10-16 10:59:40,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:40,376 INFO L225 Difference]: With dead ends: 200 [2022-10-16 10:59:40,376 INFO L226 Difference]: Without dead ends: 198 [2022-10-16 10:59:40,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 48 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=398, Invalid=1763, Unknown=1, NotChecked=0, Total=2162 [2022-10-16 10:59:40,378 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 142 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 310 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:40,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 813 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 267 Invalid, 0 Unknown, 310 Unchecked, 0.3s Time] [2022-10-16 10:59:40,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-10-16 10:59:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 189. [2022-10-16 10:59:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 174 states have (on average 1.2586206896551724) internal successors, (219), 188 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 219 transitions. [2022-10-16 10:59:40,397 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 219 transitions. Word has length 35 [2022-10-16 10:59:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:40,398 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 219 transitions. [2022-10-16 10:59:40,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 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 10:59:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 219 transitions. [2022-10-16 10:59:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 10:59:40,399 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:40,399 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:40,426 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 10:59:40,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:40,612 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:40,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:40,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1108834805, now seen corresponding path program 1 times [2022-10-16 10:59:40,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:40,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741456204] [2022-10-16 10:59:40,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:40,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:41,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:41,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741456204] [2022-10-16 10:59:41,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741456204] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:41,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764091530] [2022-10-16 10:59:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:41,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:41,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:41,867 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 10:59:41,870 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 10:59:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:41,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:59:41,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:41,975 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:59:41,975 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 54 treesize of output 50 [2022-10-16 10:59:42,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:59:42,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 10:59:42,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 10:59:42,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:59:42,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-10-16 10:59:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:59:42,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:42,673 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:59:42,673 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 1 case distinctions, treesize of input 16 treesize of output 20 [2022-10-16 10:59:42,682 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse0))))) is different from false [2022-10-16 10:59:42,743 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_742 (Array Int Int))) (let ((.cse0 (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_742) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:59:42,791 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:59:42,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-10-16 10:59:42,803 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:59:42,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 82 [2022-10-16 10:59:42,812 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:59:42,813 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 75 treesize of output 69 [2022-10-16 10:59:42,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-10-16 10:59:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-10-16 10:59:42,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764091530] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:42,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:42,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8] total 26 [2022-10-16 10:59:42,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934327439] [2022-10-16 10:59:42,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:42,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:59:42,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:42,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:59:42,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=485, Unknown=2, NotChecked=94, Total=702 [2022-10-16 10:59:42,915 INFO L87 Difference]: Start difference. First operand 189 states and 219 transitions. Second operand has 27 states, 26 states have (on average 3.8461538461538463) internal successors, (100), 27 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:44,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:44,093 INFO L93 Difference]: Finished difference Result 268 states and 315 transitions. [2022-10-16 10:59:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 10:59:44,097 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.8461538461538463) internal successors, (100), 27 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 10:59:44,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:44,102 INFO L225 Difference]: With dead ends: 268 [2022-10-16 10:59:44,102 INFO L226 Difference]: Without dead ends: 267 [2022-10-16 10:59:44,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 59 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=331, Invalid=1157, Unknown=2, NotChecked=150, Total=1640 [2022-10-16 10:59:44,104 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 362 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 223 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:44,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 662 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 439 Invalid, 0 Unknown, 223 Unchecked, 0.4s Time] [2022-10-16 10:59:44,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-10-16 10:59:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 193. [2022-10-16 10:59:44,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 178 states have (on average 1.2640449438202248) internal successors, (225), 192 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 225 transitions. [2022-10-16 10:59:44,144 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 225 transitions. Word has length 36 [2022-10-16 10:59:44,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:44,144 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 225 transitions. [2022-10-16 10:59:44,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.8461538461538463) internal successors, (100), 27 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 225 transitions. [2022-10-16 10:59:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 10:59:44,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:44,147 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:44,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 10:59:44,360 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,SelfDestructingSolverStorable21 [2022-10-16 10:59:44,360 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:44,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash 652120041, now seen corresponding path program 1 times [2022-10-16 10:59:44,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:44,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438070978] [2022-10-16 10:59:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:44,432 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:59:44,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:44,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438070978] [2022-10-16 10:59:44,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438070978] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:44,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034863653] [2022-10-16 10:59:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:44,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:44,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:44,435 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 10:59:44,439 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 10:59:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:44,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:59:44,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:59:44,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:59:44,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034863653] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:44,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:44,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:59:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741123561] [2022-10-16 10:59:44,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:44,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:59:44,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:44,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:59:44,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:59:44,591 INFO L87 Difference]: Start difference. First operand 193 states and 225 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:44,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:44,796 INFO L93 Difference]: Finished difference Result 264 states and 314 transitions. [2022-10-16 10:59:44,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:59:44,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 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 10:59:44,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:44,803 INFO L225 Difference]: With dead ends: 264 [2022-10-16 10:59:44,803 INFO L226 Difference]: Without dead ends: 263 [2022-10-16 10:59:44,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:59:44,804 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:44,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 308 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:44,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-10-16 10:59:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 221. [2022-10-16 10:59:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 206 states have (on average 1.3058252427184467) internal successors, (269), 220 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 269 transitions. [2022-10-16 10:59:44,827 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 269 transitions. Word has length 36 [2022-10-16 10:59:44,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:44,827 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 269 transitions. [2022-10-16 10:59:44,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 269 transitions. [2022-10-16 10:59:44,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 10:59:44,828 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:44,828 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:44,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 10:59:45,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:45,029 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:45,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:45,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1259115111, now seen corresponding path program 1 times [2022-10-16 10:59:45,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:45,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472062340] [2022-10-16 10:59:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:59:45,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:45,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472062340] [2022-10-16 10:59:45,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472062340] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:45,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449144499] [2022-10-16 10:59:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:45,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:45,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:45,105 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 10:59:45,138 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 10:59:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:45,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:59:45,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:59:45,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:59:45,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449144499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:45,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:59:45,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:59:45,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098899774] [2022-10-16 10:59:45,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:45,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:59:45,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:59:45,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:59:45,232 INFO L87 Difference]: Start difference. First operand 221 states and 269 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:45,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:45,346 INFO L93 Difference]: Finished difference Result 250 states and 300 transitions. [2022-10-16 10:59:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:59:45,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 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 10:59:45,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:45,348 INFO L225 Difference]: With dead ends: 250 [2022-10-16 10:59:45,349 INFO L226 Difference]: Without dead ends: 249 [2022-10-16 10:59:45,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:59:45,350 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 40 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:45,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 155 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:45,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-16 10:59:45,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 220. [2022-10-16 10:59:45,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 206 states have (on average 1.2766990291262137) internal successors, (263), 219 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:45,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 263 transitions. [2022-10-16 10:59:45,377 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 263 transitions. Word has length 37 [2022-10-16 10:59:45,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:45,377 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 263 transitions. [2022-10-16 10:59:45,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:45,377 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 263 transitions. [2022-10-16 10:59:45,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 10:59:45,378 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:45,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:45,404 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 10:59:45,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:45,591 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:45,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash 438362615, now seen corresponding path program 1 times [2022-10-16 10:59:45,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:45,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180813280] [2022-10-16 10:59:45,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:45,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:59:45,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:45,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180813280] [2022-10-16 10:59:45,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180813280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:59:45,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:59:45,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:59:45,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562180935] [2022-10-16 10:59:45,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:59:45,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:59:45,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:45,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:59:45,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:59:45,658 INFO L87 Difference]: Start difference. First operand 220 states and 263 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:45,742 INFO L93 Difference]: Finished difference Result 249 states and 294 transitions. [2022-10-16 10:59:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:59:45,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 10:59:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:45,744 INFO L225 Difference]: With dead ends: 249 [2022-10-16 10:59:45,744 INFO L226 Difference]: Without dead ends: 247 [2022-10-16 10:59:45,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:59:45,745 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 31 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:45,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 129 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:59:45,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-10-16 10:59:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 226. [2022-10-16 10:59:45,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 212 states have (on average 1.2688679245283019) internal successors, (269), 225 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:45,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 269 transitions. [2022-10-16 10:59:45,778 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 269 transitions. Word has length 38 [2022-10-16 10:59:45,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:45,778 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 269 transitions. [2022-10-16 10:59:45,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:45,779 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 269 transitions. [2022-10-16 10:59:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:59:45,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:45,779 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:45,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 10:59:45,780 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:45,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:45,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1171158619, now seen corresponding path program 4 times [2022-10-16 10:59:45,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:45,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131390070] [2022-10-16 10:59:45,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:45,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:59:45,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:45,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131390070] [2022-10-16 10:59:45,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131390070] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:45,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950401935] [2022-10-16 10:59:45,969 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:59:45,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:45,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:45,971 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 10:59:45,996 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 10:59:46,070 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:59:46,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:59:46,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:59:46,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:59:46,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:46,381 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:59:46,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950401935] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:46,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:46,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:59:46,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290072022] [2022-10-16 10:59:46,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:46,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:59:46,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:46,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:59:46,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:59:46,385 INFO L87 Difference]: Start difference. First operand 226 states and 269 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:46,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:46,820 INFO L93 Difference]: Finished difference Result 312 states and 342 transitions. [2022-10-16 10:59:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:59:46,820 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 10:59:46,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:46,822 INFO L225 Difference]: With dead ends: 312 [2022-10-16 10:59:46,822 INFO L226 Difference]: Without dead ends: 248 [2022-10-16 10:59:46,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 60 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 10:59:46,824 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 394 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:46,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 398 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:59:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-10-16 10:59:46,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 210. [2022-10-16 10:59:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 196 states have (on average 1.239795918367347) internal successors, (243), 209 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:46,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 243 transitions. [2022-10-16 10:59:46,850 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 243 transitions. Word has length 39 [2022-10-16 10:59:46,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:46,851 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 243 transitions. [2022-10-16 10:59:46,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:46,851 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 243 transitions. [2022-10-16 10:59:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:59:46,852 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:46,852 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:46,889 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 10:59:47,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:47,067 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:47,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:47,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1734742983, now seen corresponding path program 1 times [2022-10-16 10:59:47,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:47,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219337231] [2022-10-16 10:59:47,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:47,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:59:47,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:47,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219337231] [2022-10-16 10:59:47,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219337231] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:47,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859807402] [2022-10-16 10:59:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:47,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:47,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:47,192 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 10:59:47,215 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 10:59:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:47,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:59:47,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:59:47,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:47,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:59:47,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859807402] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:47,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:47,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:59:47,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139020829] [2022-10-16 10:59:47,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:47,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:59:47,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:47,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:59:47,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:59:47,514 INFO L87 Difference]: Start difference. First operand 210 states and 243 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:47,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:47,820 INFO L93 Difference]: Finished difference Result 281 states and 316 transitions. [2022-10-16 10:59:47,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:59:47,820 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 10:59:47,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:47,822 INFO L225 Difference]: With dead ends: 281 [2022-10-16 10:59:47,822 INFO L226 Difference]: Without dead ends: 260 [2022-10-16 10:59:47,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:59:47,823 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 217 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:47,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 297 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:59:47,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-10-16 10:59:47,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 218. [2022-10-16 10:59:47,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 204 states have (on average 1.2303921568627452) internal successors, (251), 217 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:47,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 251 transitions. [2022-10-16 10:59:47,857 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 251 transitions. Word has length 41 [2022-10-16 10:59:47,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:47,858 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 251 transitions. [2022-10-16 10:59:47,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 251 transitions. [2022-10-16 10:59:47,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:59:47,859 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:47,859 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:47,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-10-16 10:59:48,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 10:59:48,074 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1014297451, now seen corresponding path program 2 times [2022-10-16 10:59:48,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:48,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138345115] [2022-10-16 10:59:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:48,209 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:59:48,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:48,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138345115] [2022-10-16 10:59:48,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138345115] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:48,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504780407] [2022-10-16 10:59:48,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:59:48,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:48,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:48,211 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 10:59:48,224 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 10:59:48,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:59:48,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:59:48,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:59:48,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:59:48,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:59:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:59:48,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504780407] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:59:48,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:59:48,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:59:48,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898770225] [2022-10-16 10:59:48,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:59:48,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:59:48,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:59:48,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:59:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:59:48,517 INFO L87 Difference]: Start difference. First operand 218 states and 251 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:59:48,934 INFO L93 Difference]: Finished difference Result 327 states and 376 transitions. [2022-10-16 10:59:48,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:59:48,935 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 10:59:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:59:48,937 INFO L225 Difference]: With dead ends: 327 [2022-10-16 10:59:48,937 INFO L226 Difference]: Without dead ends: 238 [2022-10-16 10:59:48,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:59:48,939 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 197 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:59:48,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 501 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:59:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-10-16 10:59:48,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 196. [2022-10-16 10:59:48,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 182 states have (on average 1.2362637362637363) internal successors, (225), 195 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 225 transitions. [2022-10-16 10:59:48,963 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 225 transitions. Word has length 41 [2022-10-16 10:59:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:59:48,964 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 225 transitions. [2022-10-16 10:59:48,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:59:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 225 transitions. [2022-10-16 10:59:48,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:59:48,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:59:48,965 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:59:48,991 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 10:59:49,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 10:59:49,175 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 10:59:49,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:59:49,175 INFO L85 PathProgramCache]: Analyzing trace with hash 201956779, now seen corresponding path program 2 times [2022-10-16 10:59:49,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:59:49,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825794523] [2022-10-16 10:59:49,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:59:49,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:59:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:59:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:59:51,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:59:51,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825794523] [2022-10-16 10:59:51,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825794523] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:59:51,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718815164] [2022-10-16 10:59:51,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:59:51,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:59:51,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:59:51,196 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 10:59:51,197 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 10:59:51,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:59:51,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:59:51,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 57 conjunts are in the unsatisfiable core [2022-10-16 10:59:51,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:59:51,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:51,328 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:59:51,328 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 28 treesize of output 24 [2022-10-16 10:59:51,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:59:51,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:59:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:51,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-10-16 10:59:51,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:51,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:51,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-10-16 10:59:52,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:52,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:52,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:52,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-10-16 10:59:52,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:59:52,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:52,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:52,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 56 [2022-10-16 10:59:53,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:53,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-10-16 10:59:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:59:53,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 21 [2022-10-16 10:59:53,559 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:59:53,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:00:01,937 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_163| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post8#1| 1) |v_ULTIMATE.start_main_~i~0#1_163|)) (forall ((v_ArrVal_1050 Int) (v_ArrVal_1052 Int) (v_ArrVal_1055 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_163|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1050)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_1055 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1055)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775808) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052) (< (+ v_ArrVal_1052 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1052)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) v_ArrVal_1055))))))) is different from false [2022-10-16 11:00:04,003 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1050 Int) (v_ArrVal_1052 Int) (v_ArrVal_1055 Int) (|v_ULTIMATE.start_main_~i~0#1_163| Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_163|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1050)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_1055 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1055)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775808) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052) (< (+ v_ArrVal_1052 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1052)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) v_ArrVal_1055) (< |v_ULTIMATE.start_main_~i~0#1_163| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))))) is different from false [2022-10-16 11:00:06,059 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1050 Int) (v_ArrVal_1052 Int) (v_ArrVal_1055 Int) (v_ArrVal_1048 Int) (|v_ULTIMATE.start_main_~i~0#1_163| Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1048) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_163|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1050)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< |v_ULTIMATE.start_main_~i~0#1_163| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ v_ArrVal_1055 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1055)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775808) (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1052)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052) v_ArrVal_1055) (not (<= v_ArrVal_1048 1)) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052))))) is different from false [2022-10-16 11:01:04,388 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1050 Int) (v_ArrVal_1052 Int) (v_ArrVal_1055 Int) (v_ArrVal_1046 Int) (v_ArrVal_1048 Int) (|v_ULTIMATE.start_main_~i~0#1_163| Int)) (let ((.cse0 (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1046)))) (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_1048) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_163|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1050))))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1055)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1055) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~0#1_163| 1) (not (<= v_ArrVal_1046 1)) (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1052)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052) v_ArrVal_1055) (not (<= v_ArrVal_1048 1)) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052))))) is different from false [2022-10-16 11:01:23,444 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 9 refuted. 5 times theorem prover too weak. 0 trivial. 6 not checked. [2022-10-16 11:01:23,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718815164] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:23,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:23,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 20] total 56 [2022-10-16 11:01:23,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843069436] [2022-10-16 11:01:23,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:23,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-10-16 11:01:23,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:23,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-10-16 11:01:23,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=2441, Unknown=33, NotChecked=420, Total=3192 [2022-10-16 11:01:23,447 INFO L87 Difference]: Start difference. First operand 196 states and 225 transitions. Second operand has 57 states, 56 states have (on average 2.0357142857142856) internal successors, (114), 57 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:26,832 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse6 (select .cse5 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (and (= (select .cse0 0) 1) (= .cse1 0) (<= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select .cse0 8) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1050 Int) (v_ArrVal_1052 Int) (v_ArrVal_1055 Int) (|v_ULTIMATE.start_main_~i~0#1_163| Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store .cse5 (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_163|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1050)))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_1055 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1055)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775808) (< (+ (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052) (< (+ v_ArrVal_1052 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1052)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4)) v_ArrVal_1055) (< |v_ULTIMATE.start_main_~i~0#1_163| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (<= (select .cse0 .cse4) 1) (<= (+ |c_ULTIMATE.start_main_~b~0#1.base| 2) |c_ULTIMATE.start_main_~#sum~0#1.base|) (= .cse6 1) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (<= .cse1 0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= .cse6 1)))) is different from false [2022-10-16 11:01:28,849 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_163| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post8#1| 1) |v_ULTIMATE.start_main_~i~0#1_163|)) (forall ((v_ArrVal_1050 Int) (v_ArrVal_1052 Int) (v_ArrVal_1055 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store .cse3 (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_163|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1050)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_1055 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1055)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775808) (< (+ (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1052) (< (+ v_ArrVal_1052 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1052)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)) v_ArrVal_1055))))))) (= (select .cse4 0) 1) (= .cse5 0) (<= (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select .cse4 8) 1) (<= 0 |c_ULTIMATE.start_main_#t~post8#1|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (<= (select .cse4 .cse2) 1) (<= (+ |c_ULTIMATE.start_main_~b~0#1.base| 2) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (<= .cse5 0) (= (select .cse3 0) 1) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= (select .cse3 |c_ULTIMATE.start_main_~b~0#1.offset|) 1))) is different from false [2022-10-16 11:01:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:30,499 INFO L93 Difference]: Finished difference Result 203 states and 230 transitions. [2022-10-16 11:01:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 11:01:30,500 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 2.0357142857142856) internal successors, (114), 57 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 11:01:30,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:30,501 INFO L225 Difference]: With dead ends: 203 [2022-10-16 11:01:30,501 INFO L226 Difference]: Without dead ends: 202 [2022-10-16 11:01:30,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 49 SyntacticMatches, 7 SemanticMatches, 76 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 97.1s TimeCoverageRelationStatistics Valid=631, Invalid=4470, Unknown=35, NotChecked=870, Total=6006 [2022-10-16 11:01:30,504 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 110 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 728 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:30,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 937 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 585 Invalid, 0 Unknown, 728 Unchecked, 0.6s Time] [2022-10-16 11:01:30,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-16 11:01:30,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2022-10-16 11:01:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 185 states have (on average 1.227027027027027) internal successors, (227), 198 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 227 transitions. [2022-10-16 11:01:30,528 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 227 transitions. Word has length 41 [2022-10-16 11:01:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:30,528 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 227 transitions. [2022-10-16 11:01:30,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 2.0357142857142856) internal successors, (114), 57 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 227 transitions. [2022-10-16 11:01:30,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 11:01:30,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:30,530 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:30,556 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 11:01:30,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 11:01:30,745 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:30,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:30,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1876545569, now seen corresponding path program 5 times [2022-10-16 11:01:30,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:30,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022240535] [2022-10-16 11:01:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:30,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 11:01:30,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:30,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022240535] [2022-10-16 11:01:30,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022240535] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:30,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020730002] [2022-10-16 11:01:30,953 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 11:01:30,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:30,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:30,954 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 11:01:30,958 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 11:01:31,060 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 11:01:31,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:01:31,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 11:01:31,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:31,228 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 11:01:31,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 11:01:31,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020730002] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:31,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:31,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 11:01:31,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312533867] [2022-10-16 11:01:31,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:31,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 11:01:31,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:31,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 11:01:31,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:01:31,402 INFO L87 Difference]: Start difference. First operand 199 states and 227 transitions. Second operand has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:32,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:32,110 INFO L93 Difference]: Finished difference Result 322 states and 349 transitions. [2022-10-16 11:01:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 11:01:32,110 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 11:01:32,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:32,112 INFO L225 Difference]: With dead ends: 322 [2022-10-16 11:01:32,112 INFO L226 Difference]: Without dead ends: 240 [2022-10-16 11:01:32,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 68 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=864, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 11:01:32,113 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 321 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:32,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 720 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 11:01:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-10-16 11:01:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 203. [2022-10-16 11:01:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 189 states have (on average 1.2222222222222223) internal successors, (231), 202 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 231 transitions. [2022-10-16 11:01:32,137 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 231 transitions. Word has length 43 [2022-10-16 11:01:32,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:32,138 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 231 transitions. [2022-10-16 11:01:32,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:32,138 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 231 transitions. [2022-10-16 11:01:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 11:01:32,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:32,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:32,166 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 11:01:32,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:32,345 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:32,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:32,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1921778353, now seen corresponding path program 3 times [2022-10-16 11:01:32,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:32,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365598744] [2022-10-16 11:01:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:35,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:35,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365598744] [2022-10-16 11:01:35,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365598744] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:35,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153035604] [2022-10-16 11:01:35,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:01:35,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:35,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:35,448 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 11:01:35,450 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 11:01:35,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 11:01:35,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:01:35,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 71 conjunts are in the unsatisfiable core [2022-10-16 11:01:35,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:35,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:01:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:35,596 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 11:01:35,597 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 28 treesize of output 24 [2022-10-16 11:01:35,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:01:36,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:36,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-10-16 11:01:36,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:36,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:36,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-10-16 11:01:36,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:36,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:36,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:36,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-10-16 11:01:37,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:01:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:37,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:37,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:37,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2022-10-16 11:01:38,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:38,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:38,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 58 [2022-10-16 11:01:38,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:38,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:38,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:01:38,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2022-10-16 11:01:39,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:39,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 25 [2022-10-16 11:01:39,561 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:39,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:20,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153035604] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:20,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:20,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 24, 24] total 74 [2022-10-16 11:02:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492300092] [2022-10-16 11:02:20,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:20,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-10-16 11:02:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-10-16 11:02:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=5060, Unknown=12, NotChecked=0, Total=5550 [2022-10-16 11:02:20,806 INFO L87 Difference]: Start difference. First operand 203 states and 231 transitions. Second operand has 75 states, 74 states have (on average 1.7972972972972974) internal successors, (133), 75 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)