/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-memsafety/openbsd_cstrlcpy-alloca-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:11:26,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:11:26,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:11:26,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:11:26,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:11:26,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:11:26,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:11:26,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:11:26,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:11:26,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:11:26,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:11:26,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:11:26,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:11:26,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:11:26,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:11:26,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:11:26,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:11:26,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:11:26,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:11:26,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:11:26,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:11:26,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:11:26,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:11:26,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:11:26,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:11:26,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:11:26,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:11:26,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:11:26,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:11:26,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:11:26,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:11:26,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:11:26,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:11:26,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:11:26,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:11:26,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:11:26,609 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:11:26,663 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:11:26,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:11:26,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:11:26,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:11:26,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:11:26,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:11:26,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:11:26,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:11:26,667 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:11:26,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:11:26,667 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:11:26,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:11:26,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:11:26,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:11:26,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:11:26,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:11:26,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:11:26,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:11:26,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:11:26,669 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:11:26,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:11:26,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:11:26,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:11:26,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:11:26,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:11:26,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:11:26,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:11:26,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:11:26,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:11:26,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:11:26,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:11:26,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:11:26,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:11:26,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:11:27,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:11:27,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:11:27,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:11:27,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:11:27,060 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:11:27,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrlcpy-alloca-1.i [2022-10-16 11:11:27,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be2421b/71510a17e2d64deba49df80fc8973385/FLAGe5a4027cd [2022-10-16 11:11:27,845 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:11:27,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrlcpy-alloca-1.i [2022-10-16 11:11:27,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be2421b/71510a17e2d64deba49df80fc8973385/FLAGe5a4027cd [2022-10-16 11:11:28,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be2421b/71510a17e2d64deba49df80fc8973385 [2022-10-16 11:11:28,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:11:28,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:11:28,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:11:28,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:11:28,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:11:28,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb8d5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28, skipping insertion in model container [2022-10-16 11:11:28,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:11:28,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:11:28,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:11:28,779 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:11:28,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:11:28,879 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:11:28,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28 WrapperNode [2022-10-16 11:11:28,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:11:28,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:11:28,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:11:28,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:11:28,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,932 INFO L138 Inliner]: procedures = 117, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 114 [2022-10-16 11:11:28,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:11:28,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:11:28,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:11:28,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:11:28,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:28,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:11:28,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:11:28,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:11:28,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:11:28,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (1/1) ... [2022-10-16 11:11:29,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:11:29,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:29,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:11:29,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:11:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:11:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:11:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:11:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:11:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:11:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:11:29,201 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:11:29,203 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:11:29,650 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:11:29,666 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:11:29,666 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 11:11:29,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:11:29 BoogieIcfgContainer [2022-10-16 11:11:29,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:11:29,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:11:29,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:11:29,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:11:29,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:11:28" (1/3) ... [2022-10-16 11:11:29,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b0ac4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:11:29, skipping insertion in model container [2022-10-16 11:11:29,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:28" (2/3) ... [2022-10-16 11:11:29,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b0ac4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:11:29, skipping insertion in model container [2022-10-16 11:11:29,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:11:29" (3/3) ... [2022-10-16 11:11:29,683 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrlcpy-alloca-1.i [2022-10-16 11:11:29,713 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:11:29,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 11:11:29,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:11:29,805 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;@1a762dc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:11:29,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 11:11:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 35 states have (on average 1.8) internal successors, (63), 49 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:11:29,820 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:29,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:11:29,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:29,830 INFO L85 PathProgramCache]: Analyzing trace with hash 889510733, now seen corresponding path program 1 times [2022-10-16 11:11:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:29,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820873448] [2022-10-16 11:11:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:29,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:30,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:30,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820873448] [2022-10-16 11:11:30,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820873448] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:30,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:30,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:11:30,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200269907] [2022-10-16 11:11:30,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:30,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:11:30,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:30,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:11:30,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,155 INFO L87 Difference]: Start difference. First operand has 50 states, 35 states have (on average 1.8) internal successors, (63), 49 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:30,233 INFO L93 Difference]: Finished difference Result 129 states and 166 transitions. [2022-10-16 11:11:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:11:30,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 11:11:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:30,247 INFO L225 Difference]: With dead ends: 129 [2022-10-16 11:11:30,250 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 11:11:30,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,262 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:30,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 95 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:30,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 11:11:30,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 64. [2022-10-16 11:11:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.7) internal successors, (85), 63 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2022-10-16 11:11:30,310 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 6 [2022-10-16 11:11:30,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:30,311 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2022-10-16 11:11:30,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,311 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2022-10-16 11:11:30,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:11:30,312 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:30,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:11:30,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:11:30,313 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:30,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:30,314 INFO L85 PathProgramCache]: Analyzing trace with hash 889570315, now seen corresponding path program 1 times [2022-10-16 11:11:30,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:30,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677856388] [2022-10-16 11:11:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:30,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:30,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:30,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677856388] [2022-10-16 11:11:30,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677856388] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:30,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:30,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:11:30,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161701661] [2022-10-16 11:11:30,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:30,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:11:30,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:30,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:11:30,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,406 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:30,437 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2022-10-16 11:11:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:11:30,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 11:11:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:30,439 INFO L225 Difference]: With dead ends: 64 [2022-10-16 11:11:30,439 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 11:11:30,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,442 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:30,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 43 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 11:11:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 44. [2022-10-16 11:11:30,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.65625) internal successors, (53), 43 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-10-16 11:11:30,451 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 6 [2022-10-16 11:11:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:30,452 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-10-16 11:11:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-10-16 11:11:30,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 11:11:30,453 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:30,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:30,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:11:30,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:30,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:30,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028999, now seen corresponding path program 1 times [2022-10-16 11:11:30,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:30,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686446873] [2022-10-16 11:11:30,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:30,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:30,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:30,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686446873] [2022-10-16 11:11:30,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686446873] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:30,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:30,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:11:30,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781775649] [2022-10-16 11:11:30,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:30,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:11:30,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:30,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:11:30,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,556 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:30,579 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2022-10-16 11:11:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:11:30,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 11:11:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:30,580 INFO L225 Difference]: With dead ends: 44 [2022-10-16 11:11:30,581 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 11:11:30,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,583 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 44 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:30,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 45 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 11:11:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 11:11:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.59375) internal successors, (51), 41 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-10-16 11:11:30,591 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 7 [2022-10-16 11:11:30,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:30,591 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-10-16 11:11:30,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,592 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-10-16 11:11:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:11:30,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:30,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:30,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:11:30,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:30,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:30,594 INFO L85 PathProgramCache]: Analyzing trace with hash 628418293, now seen corresponding path program 1 times [2022-10-16 11:11:30,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:30,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365328581] [2022-10-16 11:11:30,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:30,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:30,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:30,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365328581] [2022-10-16 11:11:30,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365328581] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:30,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:30,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:11:30,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993029412] [2022-10-16 11:11:30,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:11:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:11:30,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,697 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:30,777 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2022-10-16 11:11:30,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:11:30,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:11:30,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:30,783 INFO L225 Difference]: With dead ends: 78 [2022-10-16 11:11:30,783 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 11:11:30,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:30,785 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 38 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:30,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:11:30,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 11:11:30,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 57. [2022-10-16 11:11:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.553191489361702) internal successors, (73), 56 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 11:11:30,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2022-10-16 11:11:30,796 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 10 [2022-10-16 11:11:30,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:30,797 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2022-10-16 11:11:30,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:30,797 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2022-10-16 11:11:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:11:30,798 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:30,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:30,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 11:11:30,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:30,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:30,800 INFO L85 PathProgramCache]: Analyzing trace with hash 628419956, now seen corresponding path program 1 times [2022-10-16 11:11:30,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:30,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630276368] [2022-10-16 11:11:30,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:30,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:30,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:30,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630276368] [2022-10-16 11:11:30,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630276368] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:30,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:30,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:11:30,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564021312] [2022-10-16 11:11:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:30,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:11:30,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:30,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:11:30,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:11:30,905 INFO L87 Difference]: Start difference. First operand 57 states and 73 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 11:11:30,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:30,960 INFO L93 Difference]: Finished difference Result 154 states and 197 transitions. [2022-10-16 11:11:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:11:30,961 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 11:11:30,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:30,962 INFO L225 Difference]: With dead ends: 154 [2022-10-16 11:11:30,963 INFO L226 Difference]: Without dead ends: 103 [2022-10-16 11:11:30,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:11:30,965 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 40 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:30,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 125 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-16 11:11:30,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 66. [2022-10-16 11:11:30,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 65 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 11:11:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2022-10-16 11:11:30,978 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 10 [2022-10-16 11:11:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:30,978 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2022-10-16 11:11:30,978 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 11:11:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2022-10-16 11:11:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:11:30,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:30,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:30,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 11:11:30,980 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1891541641, now seen corresponding path program 1 times [2022-10-16 11:11:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:30,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873579216] [2022-10-16 11:11:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:30,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:31,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873579216] [2022-10-16 11:11:31,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873579216] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:31,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:31,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:11:31,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863973393] [2022-10-16 11:11:31,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:31,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:11:31,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:31,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:11:31,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:31,032 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:31,056 INFO L93 Difference]: Finished difference Result 66 states and 83 transitions. [2022-10-16 11:11:31,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:11:31,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:11:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:31,058 INFO L225 Difference]: With dead ends: 66 [2022-10-16 11:11:31,058 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 11:11:31,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:31,061 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 39 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:31,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 38 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:31,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 11:11:31,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 45. [2022-10-16 11:11:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 44 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2022-10-16 11:11:31,071 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 10 [2022-10-16 11:11:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:31,072 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-10-16 11:11:31,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,072 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2022-10-16 11:11:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:11:31,076 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:31,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:31,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 11:11:31,077 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:31,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash -180926670, now seen corresponding path program 1 times [2022-10-16 11:11:31,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:31,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992159800] [2022-10-16 11:11:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:31,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992159800] [2022-10-16 11:11:31,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992159800] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:31,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:31,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:11:31,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243196154] [2022-10-16 11:11:31,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:31,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:11:31,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:31,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:11:31,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:11:31,182 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:31,222 INFO L93 Difference]: Finished difference Result 80 states and 97 transitions. [2022-10-16 11:11:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:11:31,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:11:31,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:31,224 INFO L225 Difference]: With dead ends: 80 [2022-10-16 11:11:31,224 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 11:11:31,225 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 11:11:31,226 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 37 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:31,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 128 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 11:11:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 51. [2022-10-16 11:11:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.441860465116279) internal successors, (62), 50 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2022-10-16 11:11:31,236 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 10 [2022-10-16 11:11:31,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:31,236 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2022-10-16 11:11:31,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2022-10-16 11:11:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:11:31,237 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:31,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:31,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:11:31,238 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:31,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:31,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1993869323, now seen corresponding path program 1 times [2022-10-16 11:11:31,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:31,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91031321] [2022-10-16 11:11:31,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:31,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:31,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91031321] [2022-10-16 11:11:31,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91031321] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:31,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:31,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:11:31,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142919058] [2022-10-16 11:11:31,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:31,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:11:31,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:31,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:11:31,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:31,336 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:31,355 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2022-10-16 11:11:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:11:31,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 11:11:31,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:31,357 INFO L225 Difference]: With dead ends: 51 [2022-10-16 11:11:31,357 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 11:11:31,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:31,359 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:31,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 42 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:31,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 11:11:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-10-16 11:11:31,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 48 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2022-10-16 11:11:31,367 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 11 [2022-10-16 11:11:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:31,368 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2022-10-16 11:11:31,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2022-10-16 11:11:31,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 11:11:31,369 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:31,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:31,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 11:11:31,370 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash 36780700, now seen corresponding path program 1 times [2022-10-16 11:11:31,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:31,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097345491] [2022-10-16 11:11:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:31,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:31,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097345491] [2022-10-16 11:11:31,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097345491] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:31,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:31,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:11:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107347305] [2022-10-16 11:11:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:31,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:11:31,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:11:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:11:31,436 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:31,485 INFO L93 Difference]: Finished difference Result 112 states and 137 transitions. [2022-10-16 11:11:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:11:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 11:11:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:31,487 INFO L225 Difference]: With dead ends: 112 [2022-10-16 11:11:31,488 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 11:11:31,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:11:31,489 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 31 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:31,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 109 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:31,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 11:11:31,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 70. [2022-10-16 11:11:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.328125) internal successors, (85), 69 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2022-10-16 11:11:31,502 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 14 [2022-10-16 11:11:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:31,502 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2022-10-16 11:11:31,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2022-10-16 11:11:31,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 11:11:31,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:31,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:31,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 11:11:31,505 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:31,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:31,506 INFO L85 PathProgramCache]: Analyzing trace with hash 737845278, now seen corresponding path program 1 times [2022-10-16 11:11:31,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:31,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319634781] [2022-10-16 11:11:31,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:31,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:31,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319634781] [2022-10-16 11:11:31,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319634781] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:31,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:31,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:11:31,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869102123] [2022-10-16 11:11:31,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:31,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:11:31,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:31,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:11:31,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:11:31,580 INFO L87 Difference]: Start difference. First operand 70 states and 85 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:31,616 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2022-10-16 11:11:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:11:31,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 11:11:31,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:31,618 INFO L225 Difference]: With dead ends: 94 [2022-10-16 11:11:31,618 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 11:11:31,618 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 11:11:31,619 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 25 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:31,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 122 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:31,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 11:11:31,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 76. [2022-10-16 11:11:31,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 75 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 11:11:31,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2022-10-16 11:11:31,631 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 14 [2022-10-16 11:11:31,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:31,632 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2022-10-16 11:11:31,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2022-10-16 11:11:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:11:31,633 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:31,633 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:31,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 11:11:31,634 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1917321044, now seen corresponding path program 1 times [2022-10-16 11:11:31,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:31,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968345832] [2022-10-16 11:11:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:31,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:31,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968345832] [2022-10-16 11:11:31,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968345832] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:31,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900381714] [2022-10-16 11:11:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:31,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:31,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:31,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:31,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:11:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:31,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:11:31,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:31,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:31,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900381714] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:31,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:31,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:11:31,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478657884] [2022-10-16 11:11:31,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:31,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:11:31,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:31,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:11:31,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:11:31,950 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 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 11:11:32,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:32,083 INFO L93 Difference]: Finished difference Result 256 states and 314 transitions. [2022-10-16 11:11:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:11:32,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 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 16 [2022-10-16 11:11:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:32,086 INFO L225 Difference]: With dead ends: 256 [2022-10-16 11:11:32,086 INFO L226 Difference]: Without dead ends: 255 [2022-10-16 11:11:32,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 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 11:11:32,088 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 323 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:32,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 219 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-10-16 11:11:32,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 110. [2022-10-16 11:11:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 109 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 136 transitions. [2022-10-16 11:11:32,102 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 136 transitions. Word has length 16 [2022-10-16 11:11:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:32,102 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 136 transitions. [2022-10-16 11:11:32,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 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 11:11:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 136 transitions. [2022-10-16 11:11:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 11:11:32,104 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:32,104 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:32,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:32,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 11:11:32,318 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:32,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash 692589843, now seen corresponding path program 1 times [2022-10-16 11:11:32,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:32,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853109744] [2022-10-16 11:11:32,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:32,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:32,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:32,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853109744] [2022-10-16 11:11:32,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853109744] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:32,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507935386] [2022-10-16 11:11:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:32,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:32,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:32,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:32,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:11:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:32,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:11:32,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:32,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:11:32,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507935386] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:32,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:11:32,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:11:32,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996825530] [2022-10-16 11:11:32,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:32,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:11:32,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:11:32,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:11:32,581 INFO L87 Difference]: Start difference. First operand 110 states and 136 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:32,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:32,636 INFO L93 Difference]: Finished difference Result 145 states and 178 transitions. [2022-10-16 11:11:32,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:11:32,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 11:11:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:32,639 INFO L225 Difference]: With dead ends: 145 [2022-10-16 11:11:32,639 INFO L226 Difference]: Without dead ends: 144 [2022-10-16 11:11:32,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 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 11:11:32,640 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:32,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 183 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-10-16 11:11:32,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 109. [2022-10-16 11:11:32,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 104 states have (on average 1.25) internal successors, (130), 108 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 130 transitions. [2022-10-16 11:11:32,653 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 130 transitions. Word has length 17 [2022-10-16 11:11:32,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:32,653 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 130 transitions. [2022-10-16 11:11:32,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:32,654 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 130 transitions. [2022-10-16 11:11:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 11:11:32,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:32,655 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 11:11:32,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:32,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 11:11:32,869 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:32,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash -658344546, now seen corresponding path program 1 times [2022-10-16 11:11:32,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:32,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329570025] [2022-10-16 11:11:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:32,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:32,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:32,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329570025] [2022-10-16 11:11:32,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329570025] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:32,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:32,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:11:32,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826356437] [2022-10-16 11:11:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:32,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:11:32,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:11:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:32,915 INFO L87 Difference]: Start difference. First operand 109 states and 130 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 11:11:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:32,931 INFO L93 Difference]: Finished difference Result 118 states and 138 transitions. [2022-10-16 11:11:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:11:32,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 19 [2022-10-16 11:11:32,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:32,933 INFO L225 Difference]: With dead ends: 118 [2022-10-16 11:11:32,933 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 11:11:32,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:11:32,934 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 9 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:32,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 83 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:32,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 11:11:32,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2022-10-16 11:11:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 105 states have (on average 1.2476190476190476) internal successors, (131), 109 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 131 transitions. [2022-10-16 11:11:32,945 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 131 transitions. Word has length 19 [2022-10-16 11:11:32,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:32,945 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 131 transitions. [2022-10-16 11:11:32,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 11:11:32,946 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 131 transitions. [2022-10-16 11:11:32,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:11:32,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:32,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:32,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 11:11:32,947 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:32,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:32,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1973612760, now seen corresponding path program 1 times [2022-10-16 11:11:32,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:32,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833650161] [2022-10-16 11:11:32,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:32,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:33,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:33,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:33,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833650161] [2022-10-16 11:11:33,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833650161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:33,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100390473] [2022-10-16 11:11:33,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:33,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:33,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:33,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:33,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:11:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:33,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:11:33,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:33,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:33,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100390473] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:33,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:33,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:11:33,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403641776] [2022-10-16 11:11:33,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:33,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:11:33,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:33,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:11:33,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:11:33,190 INFO L87 Difference]: Start difference. First operand 110 states and 131 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:33,313 INFO L93 Difference]: Finished difference Result 200 states and 246 transitions. [2022-10-16 11:11:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:11:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 11:11:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:33,314 INFO L225 Difference]: With dead ends: 200 [2022-10-16 11:11:33,315 INFO L226 Difference]: Without dead ends: 199 [2022-10-16 11:11:33,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 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 11:11:33,316 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 204 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:33,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 277 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:33,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-16 11:11:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 127. [2022-10-16 11:11:33,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 122 states have (on average 1.2540983606557377) internal successors, (153), 126 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 153 transitions. [2022-10-16 11:11:33,331 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 153 transitions. Word has length 20 [2022-10-16 11:11:33,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:33,332 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 153 transitions. [2022-10-16 11:11:33,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,332 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 153 transitions. [2022-10-16 11:11:33,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 11:11:33,333 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:33,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:33,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:33,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:33,547 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:33,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:33,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1328581363, now seen corresponding path program 1 times [2022-10-16 11:11:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:33,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545523057] [2022-10-16 11:11:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:33,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:33,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:33,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545523057] [2022-10-16 11:11:33,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545523057] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:33,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:33,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:11:33,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246725618] [2022-10-16 11:11:33,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:33,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:11:33,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:11:33,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:11:33,666 INFO L87 Difference]: Start difference. First operand 127 states and 153 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:33,703 INFO L93 Difference]: Finished difference Result 136 states and 164 transitions. [2022-10-16 11:11:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:11:33,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 11:11:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:33,704 INFO L225 Difference]: With dead ends: 136 [2022-10-16 11:11:33,704 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 11:11:33,705 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 11:11:33,706 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 41 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:33,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 83 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 11:11:33,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2022-10-16 11:11:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 128 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 11:11:33,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2022-10-16 11:11:33,720 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 21 [2022-10-16 11:11:33,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:33,720 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2022-10-16 11:11:33,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2022-10-16 11:11:33,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 11:11:33,721 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:33,721 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:33,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 11:11:33,722 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:33,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:33,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1052453501, now seen corresponding path program 1 times [2022-10-16 11:11:33,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:33,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113412870] [2022-10-16 11:11:33,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:33,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:33,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:33,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:33,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113412870] [2022-10-16 11:11:33,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113412870] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:33,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085331194] [2022-10-16 11:11:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:33,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:33,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:33,792 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:33,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:11:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:33,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:11:33,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:33,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:11:33,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085331194] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:33,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:11:33,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:11:33,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881210845] [2022-10-16 11:11:33,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:33,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:11:33,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:33,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:11:33,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:11:33,890 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:33,947 INFO L93 Difference]: Finished difference Result 148 states and 181 transitions. [2022-10-16 11:11:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:11:33,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 11:11:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:33,951 INFO L225 Difference]: With dead ends: 148 [2022-10-16 11:11:33,951 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 11:11:33,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 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 11:11:33,952 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 50 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:33,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 235 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 11:11:33,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 128. [2022-10-16 11:11:33,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 127 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 153 transitions. [2022-10-16 11:11:33,969 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 153 transitions. Word has length 21 [2022-10-16 11:11:33,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:33,970 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 153 transitions. [2022-10-16 11:11:33,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:33,970 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 153 transitions. [2022-10-16 11:11:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 11:11:33,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:33,971 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 11:11:34,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:34,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:11:34,185 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:34,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1763680551, now seen corresponding path program 1 times [2022-10-16 11:11:34,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:34,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978887080] [2022-10-16 11:11:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:34,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:34,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:34,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978887080] [2022-10-16 11:11:34,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978887080] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:34,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:34,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:11:34,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20409912] [2022-10-16 11:11:34,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:34,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:11:34,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:11:34,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:11:34,320 INFO L87 Difference]: Start difference. First operand 128 states and 153 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 11:11:34,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:34,400 INFO L93 Difference]: Finished difference Result 141 states and 171 transitions. [2022-10-16 11:11:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:11:34,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 11:11:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:34,402 INFO L225 Difference]: With dead ends: 141 [2022-10-16 11:11:34,402 INFO L226 Difference]: Without dead ends: 140 [2022-10-16 11:11:34,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:11:34,403 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 67 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:34,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 90 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:34,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-10-16 11:11:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2022-10-16 11:11:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 135 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions. [2022-10-16 11:11:34,420 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 22 [2022-10-16 11:11:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:34,420 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions. [2022-10-16 11:11:34,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 11:11:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions. [2022-10-16 11:11:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:11:34,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:34,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:34,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 11:11:34,422 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:34,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1160477619, now seen corresponding path program 1 times [2022-10-16 11:11:34,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:34,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302525299] [2022-10-16 11:11:34,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:34,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:34,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:34,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302525299] [2022-10-16 11:11:34,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302525299] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:34,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:11:34,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:11:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374248211] [2022-10-16 11:11:34,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:34,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:11:34,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:34,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:11:34,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:11:34,563 INFO L87 Difference]: Start difference. First operand 136 states and 166 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:34,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:34,608 INFO L93 Difference]: Finished difference Result 136 states and 166 transitions. [2022-10-16 11:11:34,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:11:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 11:11:34,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:34,609 INFO L225 Difference]: With dead ends: 136 [2022-10-16 11:11:34,609 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 11:11:34,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:11:34,611 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 44 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:34,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 117 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 11:11:34,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-10-16 11:11:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 1.2384615384615385) internal successors, (161), 132 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 11:11:34,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 161 transitions. [2022-10-16 11:11:34,626 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 161 transitions. Word has length 23 [2022-10-16 11:11:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:34,627 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 161 transitions. [2022-10-16 11:11:34,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 161 transitions. [2022-10-16 11:11:34,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:11:34,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:34,628 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:34,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 11:11:34,628 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash -929970900, now seen corresponding path program 1 times [2022-10-16 11:11:34,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:34,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236216909] [2022-10-16 11:11:34,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:34,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:34,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:34,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236216909] [2022-10-16 11:11:34,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236216909] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:34,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912323808] [2022-10-16 11:11:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:34,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:34,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:34,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:34,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:11:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:34,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 11:11:34,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:34,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:34,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912323808] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:34,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:34,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2022-10-16 11:11:34,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103168551] [2022-10-16 11:11:34,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:34,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:11:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:11:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:11:34,949 INFO L87 Difference]: Start difference. First operand 133 states and 161 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:35,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:35,082 INFO L93 Difference]: Finished difference Result 168 states and 216 transitions. [2022-10-16 11:11:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 11:11:35,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 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 24 [2022-10-16 11:11:35,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:35,084 INFO L225 Difference]: With dead ends: 168 [2022-10-16 11:11:35,084 INFO L226 Difference]: Without dead ends: 163 [2022-10-16 11:11:35,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=192, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:11:35,086 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 213 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:35,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 166 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-16 11:11:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2022-10-16 11:11:35,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.2721518987341771) internal successors, (201), 160 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 201 transitions. [2022-10-16 11:11:35,113 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 201 transitions. Word has length 24 [2022-10-16 11:11:35,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:35,114 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 201 transitions. [2022-10-16 11:11:35,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:35,114 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 201 transitions. [2022-10-16 11:11:35,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 11:11:35,115 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:35,115 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:35,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:35,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:35,329 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:35,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1679307624, now seen corresponding path program 2 times [2022-10-16 11:11:35,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:35,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247616269] [2022-10-16 11:11:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:35,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:35,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:35,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247616269] [2022-10-16 11:11:35,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247616269] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:35,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710509182] [2022-10-16 11:11:35,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:11:35,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:35,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:35,639 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:35,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:11:35,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:11:35,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:11:35,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 11:11:35,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:35,770 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 11:11:35,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:11:35,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710509182] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:35,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:11:35,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-10-16 11:11:35,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006577830] [2022-10-16 11:11:35,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:35,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:11:35,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:35,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:11:35,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:11:35,773 INFO L87 Difference]: Start difference. First operand 161 states and 201 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:35,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:35,867 INFO L93 Difference]: Finished difference Result 230 states and 291 transitions. [2022-10-16 11:11:35,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:11:35,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 11:11:35,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:35,869 INFO L225 Difference]: With dead ends: 230 [2022-10-16 11:11:35,870 INFO L226 Difference]: Without dead ends: 214 [2022-10-16 11:11:35,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-10-16 11:11:35,871 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 21 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:35,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 106 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:35,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-10-16 11:11:35,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 166. [2022-10-16 11:11:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 163 states have (on average 1.2638036809815951) internal successors, (206), 165 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:35,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 206 transitions. [2022-10-16 11:11:35,903 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 206 transitions. Word has length 32 [2022-10-16 11:11:35,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:35,903 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 206 transitions. [2022-10-16 11:11:35,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:35,903 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 206 transitions. [2022-10-16 11:11:35,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 11:11:35,904 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:35,904 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:35,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:36,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:36,119 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:36,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash -293104230, now seen corresponding path program 1 times [2022-10-16 11:11:36,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:36,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672225476] [2022-10-16 11:11:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:36,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:36,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:36,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672225476] [2022-10-16 11:11:36,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672225476] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:36,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318519532] [2022-10-16 11:11:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:36,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:36,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:36,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:36,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:11:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:36,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 11:11:36,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:36,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:36,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318519532] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:36,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:36,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2022-10-16 11:11:36,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161210261] [2022-10-16 11:11:36,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:36,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 11:11:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 11:11:36,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=318, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:11:36,840 INFO L87 Difference]: Start difference. First operand 166 states and 206 transitions. Second operand has 24 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:37,234 INFO L93 Difference]: Finished difference Result 233 states and 313 transitions. [2022-10-16 11:11:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:11:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 11:11:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:37,236 INFO L225 Difference]: With dead ends: 233 [2022-10-16 11:11:37,236 INFO L226 Difference]: Without dead ends: 224 [2022-10-16 11:11:37,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=500, Invalid=906, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 11:11:37,238 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 459 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:37,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 320 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:11:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-10-16 11:11:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2022-10-16 11:11:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.3059360730593608) internal successors, (286), 221 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 286 transitions. [2022-10-16 11:11:37,292 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 286 transitions. Word has length 32 [2022-10-16 11:11:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:37,293 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 286 transitions. [2022-10-16 11:11:37,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 286 transitions. [2022-10-16 11:11:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:11:37,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:37,294 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:37,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:37,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:37,512 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:37,513 INFO L85 PathProgramCache]: Analyzing trace with hash 733845530, now seen corresponding path program 2 times [2022-10-16 11:11:37,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:37,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879851994] [2022-10-16 11:11:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:37,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:37,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:37,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879851994] [2022-10-16 11:11:37,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879851994] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:37,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966277082] [2022-10-16 11:11:37,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:11:37,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:37,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:37,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:37,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 11:11:37,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:11:37,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:11:37,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:11:37,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 11:11:37,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 11:11:37,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966277082] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:37,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:37,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 11:11:37,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877908377] [2022-10-16 11:11:37,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:37,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:11:37,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:37,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:11:37,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:11:37,916 INFO L87 Difference]: Start difference. First operand 222 states and 286 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:38,472 INFO L93 Difference]: Finished difference Result 1130 states and 1500 transitions. [2022-10-16 11:11:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:11:38,472 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 11:11:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:38,479 INFO L225 Difference]: With dead ends: 1130 [2022-10-16 11:11:38,479 INFO L226 Difference]: Without dead ends: 1129 [2022-10-16 11:11:38,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 11:11:38,481 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1094 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:38,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 248 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:11:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2022-10-16 11:11:38,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 175. [2022-10-16 11:11:38,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 173 states have (on average 1.329479768786127) internal successors, (230), 174 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:38,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 230 transitions. [2022-10-16 11:11:38,539 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 230 transitions. Word has length 34 [2022-10-16 11:11:38,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:38,540 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 230 transitions. [2022-10-16 11:11:38,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:38,540 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 230 transitions. [2022-10-16 11:11:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:11:38,541 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:38,541 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:38,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 11:11:38,755 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,SelfDestructingSolverStorable21 [2022-10-16 11:11:38,755 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:38,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:38,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1777905158, now seen corresponding path program 2 times [2022-10-16 11:11:38,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:38,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234279426] [2022-10-16 11:11:38,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:38,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:38,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:38,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234279426] [2022-10-16 11:11:38,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234279426] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:38,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148457473] [2022-10-16 11:11:38,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:11:38,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:38,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:38,946 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:38,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 11:11:39,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:11:39,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:11:39,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:11:39,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 11:11:39,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 11:11:39,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148457473] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:39,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:39,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 11:11:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205540987] [2022-10-16 11:11:39,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:11:39,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:11:39,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:11:39,171 INFO L87 Difference]: Start difference. First operand 175 states and 230 transitions. Second operand has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:39,698 INFO L93 Difference]: Finished difference Result 833 states and 1161 transitions. [2022-10-16 11:11:39,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:11:39,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 11:11:39,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:39,704 INFO L225 Difference]: With dead ends: 833 [2022-10-16 11:11:39,704 INFO L226 Difference]: Without dead ends: 832 [2022-10-16 11:11:39,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 11:11:39,706 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 449 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:39,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 237 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:11:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-10-16 11:11:39,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 151. [2022-10-16 11:11:39,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:39,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 202 transitions. [2022-10-16 11:11:39,780 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 202 transitions. Word has length 38 [2022-10-16 11:11:39,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:39,781 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 202 transitions. [2022-10-16 11:11:39,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:39,781 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 202 transitions. [2022-10-16 11:11:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 11:11:39,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:39,782 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:39,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:39,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:39,997 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:39,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:39,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1853414514, now seen corresponding path program 2 times [2022-10-16 11:11:39,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:39,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147935680] [2022-10-16 11:11:39,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:39,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:40,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:40,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147935680] [2022-10-16 11:11:40,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147935680] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:40,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061573735] [2022-10-16 11:11:40,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:11:40,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:40,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:40,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:40,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 11:11:40,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:11:40,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:11:40,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:11:40,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-10-16 11:11:40,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:11:40,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061573735] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:40,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:11:40,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2022-10-16 11:11:40,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672431059] [2022-10-16 11:11:40,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:40,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:11:40,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:40,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:11:40,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=238, Unknown=0, NotChecked=0, Total=380 [2022-10-16 11:11:40,788 INFO L87 Difference]: Start difference. First operand 151 states and 202 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:40,982 INFO L93 Difference]: Finished difference Result 243 states and 295 transitions. [2022-10-16 11:11:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:11:40,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 11:11:40,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:40,984 INFO L225 Difference]: With dead ends: 243 [2022-10-16 11:11:40,985 INFO L226 Difference]: Without dead ends: 213 [2022-10-16 11:11:40,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2022-10-16 11:11:40,987 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:40,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 108 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:40,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-10-16 11:11:41,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 153. [2022-10-16 11:11:41,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.3421052631578947) internal successors, (204), 152 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 204 transitions. [2022-10-16 11:11:41,066 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 204 transitions. Word has length 48 [2022-10-16 11:11:41,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:41,067 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 204 transitions. [2022-10-16 11:11:41,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:41,067 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 204 transitions. [2022-10-16 11:11:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 11:11:41,068 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:41,069 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:41,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-16 11:11:41,282 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,SelfDestructingSolverStorable23 [2022-10-16 11:11:41,283 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:41,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:41,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1876046768, now seen corresponding path program 1 times [2022-10-16 11:11:41,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:41,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169518780] [2022-10-16 11:11:41,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:41,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:41,965 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:41,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:41,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169518780] [2022-10-16 11:11:41,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169518780] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:41,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372533409] [2022-10-16 11:11:41,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:41,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:41,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:41,968 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:41,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 11:11:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:42,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 11:11:42,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:42,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:43,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372533409] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:43,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:43,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 47 [2022-10-16 11:11:43,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892006126] [2022-10-16 11:11:43,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:43,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 11:11:43,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:43,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 11:11:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=978, Invalid=1278, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 11:11:43,205 INFO L87 Difference]: Start difference. First operand 153 states and 204 transitions. Second operand has 48 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 48 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:44,441 INFO L93 Difference]: Finished difference Result 284 states and 415 transitions. [2022-10-16 11:11:44,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 11:11:44,442 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 48 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 11:11:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:44,444 INFO L225 Difference]: With dead ends: 284 [2022-10-16 11:11:44,444 INFO L226 Difference]: Without dead ends: 267 [2022-10-16 11:11:44,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2088, Invalid=3918, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 11:11:44,448 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1077 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:44,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 518 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:11:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-10-16 11:11:44,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2022-10-16 11:11:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.378787878787879) internal successors, (364), 264 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:44,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 364 transitions. [2022-10-16 11:11:44,542 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 364 transitions. Word has length 48 [2022-10-16 11:11:44,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:44,542 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 364 transitions. [2022-10-16 11:11:44,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 48 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 364 transitions. [2022-10-16 11:11:44,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 11:11:44,544 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:44,544 INFO L195 NwaCegarLoop]: trace histogram [30, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:44,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:44,757 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,SelfDestructingSolverStorable24 [2022-10-16 11:11:44,758 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:44,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1045313888, now seen corresponding path program 2 times [2022-10-16 11:11:44,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:44,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394059301] [2022-10-16 11:11:44,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:44,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:46,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:46,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394059301] [2022-10-16 11:11:46,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394059301] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:46,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947658847] [2022-10-16 11:11:46,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:11:46,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:46,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:46,501 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:46,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 11:11:46,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:11:46,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:11:46,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 11:11:46,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-10-16 11:11:46,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:11:46,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947658847] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:11:46,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:11:46,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 38 [2022-10-16 11:11:46,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082195166] [2022-10-16 11:11:46,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:11:46,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:11:46,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:46,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:11:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=540, Invalid=866, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 11:11:46,715 INFO L87 Difference]: Start difference. First operand 265 states and 364 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:46,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:46,953 INFO L93 Difference]: Finished difference Result 555 states and 748 transitions. [2022-10-16 11:11:46,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:11:46,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-16 11:11:46,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:46,956 INFO L225 Difference]: With dead ends: 555 [2022-10-16 11:11:46,957 INFO L226 Difference]: Without dead ends: 491 [2022-10-16 11:11:46,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=552, Invalid=1008, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 11:11:46,959 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 92 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:46,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 113 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:11:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-10-16 11:11:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 268. [2022-10-16 11:11:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 267 states have (on average 1.3782771535580525) internal successors, (368), 267 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 368 transitions. [2022-10-16 11:11:47,065 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 368 transitions. Word has length 80 [2022-10-16 11:11:47,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:47,065 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 368 transitions. [2022-10-16 11:11:47,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 368 transitions. [2022-10-16 11:11:47,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 11:11:47,066 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:47,067 INFO L195 NwaCegarLoop]: trace histogram [29, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:47,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:47,282 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,SelfDestructingSolverStorable25 [2022-10-16 11:11:47,283 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:47,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1466424260, now seen corresponding path program 1 times [2022-10-16 11:11:47,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:47,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040169347] [2022-10-16 11:11:47,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:47,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:49,080 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:49,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:49,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040169347] [2022-10-16 11:11:49,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040169347] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:49,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9912710] [2022-10-16 11:11:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:49,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:49,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:49,082 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:11:49,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 11:11:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:49,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 62 conjunts are in the unsatisfiable core [2022-10-16 11:11:49,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:50,602 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:50,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:53,361 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:53,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9912710] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:53,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:53,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32, 32] total 95 [2022-10-16 11:11:53,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702293107] [2022-10-16 11:11:53,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:53,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-16 11:11:53,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:53,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-16 11:11:53,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4002, Invalid=5118, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 11:11:53,372 INFO L87 Difference]: Start difference. First operand 268 states and 368 transitions. Second operand has 96 states, 95 states have (on average 2.357894736842105) internal successors, (224), 96 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:57,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:57,983 INFO L93 Difference]: Finished difference Result 527 states and 787 transitions. [2022-10-16 11:11:57,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-10-16 11:11:57,984 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.357894736842105) internal successors, (224), 96 states have internal predecessors, (224), 0 states have call successors, (0), 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 81 [2022-10-16 11:11:57,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:57,993 INFO L225 Difference]: With dead ends: 527 [2022-10-16 11:11:57,993 INFO L226 Difference]: Without dead ends: 494 [2022-10-16 11:11:58,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2761 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=8528, Invalid=16278, Unknown=0, NotChecked=0, Total=24806 [2022-10-16 11:11:58,002 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2364 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:58,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 1030 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:11:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-10-16 11:11:58,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 492. [2022-10-16 11:11:58,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.4012219959266803) internal successors, (688), 491 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 688 transitions. [2022-10-16 11:11:58,139 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 688 transitions. Word has length 81 [2022-10-16 11:11:58,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:58,139 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 688 transitions. [2022-10-16 11:11:58,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.357894736842105) internal successors, (224), 96 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:11:58,140 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 688 transitions. [2022-10-16 11:11:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 11:11:58,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:58,141 INFO L195 NwaCegarLoop]: trace histogram [61, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:58,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:11:58,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 11:11:58,358 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:11:58,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:58,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1841500060, now seen corresponding path program 2 times [2022-10-16 11:11:58,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:58,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024180549] [2022-10-16 11:11:58,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:58,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:04,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024180549] [2022-10-16 11:12:04,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024180549] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:04,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804783656] [2022-10-16 11:12:04,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:12:04,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:04,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:04,233 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:04,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:12:04,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:12:04,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:12:04,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 11:12:04,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3660 trivial. 0 not checked. [2022-10-16 11:12:04,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:04,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804783656] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:04,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:04,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [65] total 69 [2022-10-16 11:12:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380519328] [2022-10-16 11:12:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:04,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:12:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:12:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2088, Invalid=2604, Unknown=0, NotChecked=0, Total=4692 [2022-10-16 11:12:04,484 INFO L87 Difference]: Start difference. First operand 492 states and 688 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:04,816 INFO L93 Difference]: Finished difference Result 1060 states and 1444 transitions. [2022-10-16 11:12:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:12:04,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 145 [2022-10-16 11:12:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:04,821 INFO L225 Difference]: With dead ends: 1060 [2022-10-16 11:12:04,821 INFO L226 Difference]: Without dead ends: 627 [2022-10-16 11:12:04,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2096, Invalid=2874, Unknown=0, NotChecked=0, Total=4970 [2022-10-16 11:12:04,835 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 13 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:04,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 122 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:04,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-10-16 11:12:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 499. [2022-10-16 11:12:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.395582329317269) internal successors, (695), 498 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 695 transitions. [2022-10-16 11:12:05,003 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 695 transitions. Word has length 145 [2022-10-16 11:12:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:05,003 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 695 transitions. [2022-10-16 11:12:05,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 695 transitions. [2022-10-16 11:12:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 11:12:05,009 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:05,009 INFO L195 NwaCegarLoop]: trace histogram [61, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:05,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:05,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:05,223 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:12:05,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1301070554, now seen corresponding path program 1 times [2022-10-16 11:12:05,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:05,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622027866] [2022-10-16 11:12:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:05,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:10,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:10,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622027866] [2022-10-16 11:12:10,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622027866] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:10,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991424742] [2022-10-16 11:12:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:10,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:10,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:10,448 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:10,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:12:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:10,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 126 conjunts are in the unsatisfiable core [2022-10-16 11:12:10,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:16,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:12:27,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991424742] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:27,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:27,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64, 64] total 191 [2022-10-16 11:12:27,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480551195] [2022-10-16 11:12:27,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:27,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-10-16 11:12:27,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:27,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-10-16 11:12:27,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16194, Invalid=20478, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 11:12:27,418 INFO L87 Difference]: Start difference. First operand 499 states and 695 transitions. Second operand has 192 states, 191 states have (on average 2.1780104712041886) internal successors, (416), 192 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:54,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:54,253 INFO L93 Difference]: Finished difference Result 1014 states and 1530 transitions. [2022-10-16 11:12:54,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-16 11:12:54,254 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.1780104712041886) internal successors, (416), 192 states have internal predecessors, (416), 0 states have call successors, (0), 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 145 [2022-10-16 11:12:54,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:54,259 INFO L225 Difference]: With dead ends: 1014 [2022-10-16 11:12:54,259 INFO L226 Difference]: Without dead ends: 949 [2022-10-16 11:12:54,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11657 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=34464, Invalid=66342, Unknown=0, NotChecked=0, Total=100806 [2022-10-16 11:12:54,271 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 6898 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 1107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6898 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:54,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6898 Valid, 1566 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1107 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 11:12:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-10-16 11:12:54,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 947. [2022-10-16 11:12:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 1.4112050739957718) internal successors, (1335), 946 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1335 transitions. [2022-10-16 11:12:54,520 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1335 transitions. Word has length 145 [2022-10-16 11:12:54,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:54,520 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1335 transitions. [2022-10-16 11:12:54,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.1780104712041886) internal successors, (416), 192 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1335 transitions. [2022-10-16 11:12:54,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-10-16 11:12:54,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:54,526 INFO L195 NwaCegarLoop]: trace histogram [125, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:54,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:54,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 11:12:54,740 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:12:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:54,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1697662566, now seen corresponding path program 2 times [2022-10-16 11:12:54,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:54,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274817779] [2022-10-16 11:12:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:54,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 15500 backedges. 0 proven. 15500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:15,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:15,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274817779] [2022-10-16 11:13:15,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274817779] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:13:15,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557229045] [2022-10-16 11:13:15,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:13:15,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:15,604 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:13:15,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:13:15,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:13:15,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:13:15,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 11:13:15,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 15500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15500 trivial. 0 not checked. [2022-10-16 11:13:15,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:15,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557229045] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:15,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:13:15,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [129] total 132 [2022-10-16 11:13:15,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007754625] [2022-10-16 11:13:15,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:15,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:13:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:15,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:13:15,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8262, Invalid=9030, Unknown=0, NotChecked=0, Total=17292 [2022-10-16 11:13:15,939 INFO L87 Difference]: Start difference. First operand 947 states and 1335 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:16,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:16,246 INFO L93 Difference]: Finished difference Result 1452 states and 1965 transitions. [2022-10-16 11:13:16,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:13:16,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 273 [2022-10-16 11:13:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:16,255 INFO L225 Difference]: With dead ends: 1452 [2022-10-16 11:13:16,255 INFO L226 Difference]: Without dead ends: 950 [2022-10-16 11:13:16,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=8262, Invalid=9030, Unknown=0, NotChecked=0, Total=17292 [2022-10-16 11:13:16,261 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:16,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 103 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:13:16,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-10-16 11:13:16,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2022-10-16 11:13:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 947 states have (on average 1.2787750791974657) internal successors, (1211), 947 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:16,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1211 transitions. [2022-10-16 11:13:16,492 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1211 transitions. Word has length 273 [2022-10-16 11:13:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:16,492 INFO L495 AbstractCegarLoop]: Abstraction has 948 states and 1211 transitions. [2022-10-16 11:13:16,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:16,493 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1211 transitions. [2022-10-16 11:13:16,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-16 11:13:16,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:16,497 INFO L195 NwaCegarLoop]: trace histogram [126, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:16,536 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 11:13:16,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:16,712 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 11:13:16,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:16,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1567723983, now seen corresponding path program 1 times [2022-10-16 11:13:16,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:16,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017433594] [2022-10-16 11:13:16,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:16,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 0 proven. 15750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:35,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:35,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017433594] [2022-10-16 11:13:35,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017433594] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:13:35,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978737373] [2022-10-16 11:13:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:35,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:35,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:35,254 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:13:35,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:13:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:35,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 254 conjunts are in the unsatisfiable core [2022-10-16 11:13:35,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 0 proven. 15750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:57,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:14:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 0 proven. 15750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:14:41,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978737373] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:14:41,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:14:41,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 128, 128] total 383 [2022-10-16 11:14:41,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197893337] [2022-10-16 11:14:41,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:14:41,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-10-16 11:14:41,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:41,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-10-16 11:14:41,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65154, Invalid=81918, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 11:14:41,892 INFO L87 Difference]: Start difference. First operand 948 states and 1211 transitions. Second operand has 384 states, 383 states have (on average 2.0966057441253265) internal successors, (803), 384 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)