/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/cstrlen-alloca-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:08:10,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:08:10,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:08:10,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 11:08:10,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:08:10,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:08:10,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:08:10,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:08:10,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:08:10,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:08:10,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:08:10,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:08:10,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:08:10,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:08:10,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:08:10,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:08:10,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:08:10,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:08:10,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:08:10,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:08:10,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:08:10,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:08:10,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:08:10,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:08:10,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:08:10,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:08:10,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:08:10,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:08:10,785 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 11:08:10,835 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:08:10,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:08:10,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:08:10,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:08:10,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:08:10,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:08:10,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:08:10,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:08:10,842 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:08:10,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:08:10,843 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:08:10,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:08:10,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:08:10,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:08:10,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:08:10,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:08:10,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:08:10,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:08:10,845 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:08:10,845 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:08:10,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:08:10,846 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:08:10,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:08:10,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:08:10,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:08:10,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:08:10,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:08:10,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:08:10,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:08:10,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:08:10,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:08:10,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:08:10,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:08:10,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:08:11,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:08:11,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:08:11,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:08:11,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:08:11,323 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:08:11,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2022-10-16 11:08:11,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845f30163/5419eefd9f66473bac90831440d573dc/FLAG0a5b060e4 [2022-10-16 11:08:12,191 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:08:12,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2022-10-16 11:08:12,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845f30163/5419eefd9f66473bac90831440d573dc/FLAG0a5b060e4 [2022-10-16 11:08:12,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845f30163/5419eefd9f66473bac90831440d573dc [2022-10-16 11:08:12,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:08:12,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:08:12,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:08:12,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:08:12,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:08:12,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a1b94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12, skipping insertion in model container [2022-10-16 11:08:12,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:08:12,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:08:12,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:08:12,794 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:08:12,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:08:12,902 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:08:12,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12 WrapperNode [2022-10-16 11:08:12,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:08:12,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:08:12,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:08:12,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:08:12,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,951 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2022-10-16 11:08:12,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:08:12,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:08:12,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:08:12,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:08:12,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,978 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:08:12,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:08:12,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:08:12,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:08:12,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (1/1) ... [2022-10-16 11:08:12,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:08:13,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:08:13,025 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 11:08:13,049 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 11:08:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:08:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:08:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:08:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:08:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:08:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:08:13,207 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:08:13,210 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:08:13,359 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:08:13,366 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:08:13,367 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 11:08:13,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:08:13 BoogieIcfgContainer [2022-10-16 11:08:13,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:08:13,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:08:13,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:08:13,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:08:13,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:08:12" (1/3) ... [2022-10-16 11:08:13,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368ba7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:08:13, skipping insertion in model container [2022-10-16 11:08:13,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:08:12" (2/3) ... [2022-10-16 11:08:13,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368ba7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:08:13, skipping insertion in model container [2022-10-16 11:08:13,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:08:13" (3/3) ... [2022-10-16 11:08:13,379 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrlen-alloca-2.i [2022-10-16 11:08:13,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:08:13,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 11:08:13,491 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:08:13,501 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;@50d43a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:08:13,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 11:08:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:08:13,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:13,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:08:13,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:13,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:13,551 INFO L85 PathProgramCache]: Analyzing trace with hash 28693830, now seen corresponding path program 1 times [2022-10-16 11:08:13,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:13,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734776751] [2022-10-16 11:08:13,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:13,956 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 11:08:13,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:13,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734776751] [2022-10-16 11:08:13,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734776751] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:08:13,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:08:13,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:08:13,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122831745] [2022-10-16 11:08:13,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:08:13,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:08:13,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:14,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:08:14,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:08:14,007 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:14,075 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2022-10-16 11:08:14,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:08:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-16 11:08:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:14,094 INFO L225 Difference]: With dead ends: 55 [2022-10-16 11:08:14,095 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 11:08:14,102 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 11:08:14,108 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 20 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 31 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 11:08:14,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 31 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:08:14,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 11:08:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-10-16 11:08:14,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.55) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-10-16 11:08:14,170 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2022-10-16 11:08:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:14,170 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-10-16 11:08:14,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-10-16 11:08:14,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:08:14,172 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:14,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:08:14,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:08:14,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:14,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:14,177 INFO L85 PathProgramCache]: Analyzing trace with hash 28695752, now seen corresponding path program 1 times [2022-10-16 11:08:14,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:14,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926905977] [2022-10-16 11:08:14,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:14,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:14,271 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 11:08:14,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:14,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926905977] [2022-10-16 11:08:14,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926905977] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:08:14,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:08:14,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:08:14,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233476230] [2022-10-16 11:08:14,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:08:14,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:08:14,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:14,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:08:14,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:08:14,276 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:14,296 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-10-16 11:08:14,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:08:14,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-16 11:08:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:14,298 INFO L225 Difference]: With dead ends: 26 [2022-10-16 11:08:14,298 INFO L226 Difference]: Without dead ends: 24 [2022-10-16 11:08:14,299 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 11:08:14,301 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:14,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:08:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-16 11:08:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2022-10-16 11:08:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 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 11:08:14,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-10-16 11:08:14,307 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 5 [2022-10-16 11:08:14,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:14,307 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-10-16 11:08:14,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-16 11:08:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:08:14,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:14,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:08:14,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:08:14,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:14,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:14,310 INFO L85 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2022-10-16 11:08:14,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:14,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928361665] [2022-10-16 11:08:14,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:14,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:14,379 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 11:08:14,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:14,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928361665] [2022-10-16 11:08:14,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928361665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:08:14,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:08:14,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:08:14,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462728077] [2022-10-16 11:08:14,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:08:14,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:08:14,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:08:14,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:08:14,384 INFO L87 Difference]: Start difference. First operand 16 states and 17 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 11:08:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:14,411 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-10-16 11:08:14,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:08:14,412 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 11:08:14,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:14,413 INFO L225 Difference]: With dead ends: 16 [2022-10-16 11:08:14,413 INFO L226 Difference]: Without dead ends: 12 [2022-10-16 11:08:14,414 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 11:08:14,417 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:14,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:08:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-10-16 11:08:14,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-10-16 11:08:14,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-10-16 11:08:14,430 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2022-10-16 11:08:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:14,430 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-10-16 11:08:14,431 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 11:08:14,432 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-10-16 11:08:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:08:14,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:14,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:08:14,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:08:14,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash -592219795, now seen corresponding path program 1 times [2022-10-16 11:08:14,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:14,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150233176] [2022-10-16 11:08:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:14,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:14,543 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 11:08:14,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:14,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150233176] [2022-10-16 11:08:14,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150233176] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:08:14,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:08:14,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:08:14,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906136325] [2022-10-16 11:08:14,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:08:14,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:08:14,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:14,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:08:14,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:08:14,548 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:14,591 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-10-16 11:08:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:08:14,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:08:14,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:14,596 INFO L225 Difference]: With dead ends: 24 [2022-10-16 11:08:14,596 INFO L226 Difference]: Without dead ends: 12 [2022-10-16 11:08:14,597 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 11:08:14,598 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:14,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:08:14,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-10-16 11:08:14,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-10-16 11:08:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-10-16 11:08:14,607 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2022-10-16 11:08:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:14,607 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-10-16 11:08:14,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-10-16 11:08:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:08:14,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:14,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:08:14,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 11:08:14,613 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:14,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:14,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1182787567, now seen corresponding path program 1 times [2022-10-16 11:08:14,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:14,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504729663] [2022-10-16 11:08:14,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:14,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:14,746 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 11:08:14,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:14,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504729663] [2022-10-16 11:08:14,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504729663] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:08:14,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:08:14,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:08:14,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583941504] [2022-10-16 11:08:14,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:08:14,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:08:14,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:14,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:08:14,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:08:14,750 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:14,778 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-10-16 11:08:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:08:14,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:08:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:14,779 INFO L225 Difference]: With dead ends: 20 [2022-10-16 11:08:14,780 INFO L226 Difference]: Without dead ends: 18 [2022-10-16 11:08:14,780 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 11:08:14,782 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:14,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:08:14,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-16 11:08:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-10-16 11:08:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-10-16 11:08:14,788 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2022-10-16 11:08:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:14,789 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-10-16 11:08:14,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-10-16 11:08:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 11:08:14,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:14,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:08:14,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 11:08:14,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:14,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:14,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1318195863, now seen corresponding path program 1 times [2022-10-16 11:08:14,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:14,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465989566] [2022-10-16 11:08:14,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:14,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:14,947 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 11:08:14,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:14,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465989566] [2022-10-16 11:08:14,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465989566] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:08:14,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360647777] [2022-10-16 11:08:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:14,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:08:14,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:08:14,960 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 11:08:14,971 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 11:08:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:15,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:08:15,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:08:15,097 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 11:08:15,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:08:15,155 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 11:08:15,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360647777] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:08:15,156 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:08:15,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:08:15,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158782810] [2022-10-16 11:08:15,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:08:15,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:08:15,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:08:15,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:08:15,159 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:15,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:15,275 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2022-10-16 11:08:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:08:15,275 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 11:08:15,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:15,277 INFO L225 Difference]: With dead ends: 40 [2022-10-16 11:08:15,277 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 11:08:15,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 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 11:08:15,279 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:15,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 43 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:08:15,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 11:08:15,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2022-10-16 11:08:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-10-16 11:08:15,288 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 15 [2022-10-16 11:08:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:15,289 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-10-16 11:08:15,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-10-16 11:08:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:08:15,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:15,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:08:15,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 11:08:15,505 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,SelfDestructingSolverStorable5 [2022-10-16 11:08:15,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:15,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:15,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2085601264, now seen corresponding path program 1 times [2022-10-16 11:08:15,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:15,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929575809] [2022-10-16 11:08:15,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:15,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:15,614 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 11:08:15,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:15,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929575809] [2022-10-16 11:08:15,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929575809] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:08:15,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554938639] [2022-10-16 11:08:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:15,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:08:15,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:08:15,617 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 11:08:15,642 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 11:08:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:15,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:08:15,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:08:15,745 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 11:08:15,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:08:15,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554938639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:08:15,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:08:15,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:08:15,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558370980] [2022-10-16 11:08:15,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:08:15,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:08:15,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:15,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:08:15,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:08:15,749 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:15,788 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-10-16 11:08:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:08:15,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 11:08:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:15,790 INFO L225 Difference]: With dead ends: 35 [2022-10-16 11:08:15,790 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 11:08:15,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 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 11:08:15,792 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:15,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 28 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:08:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 11:08:15,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-10-16 11:08:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:15,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2022-10-16 11:08:15,800 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 16 [2022-10-16 11:08:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:15,800 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2022-10-16 11:08:15,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2022-10-16 11:08:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:08:15,802 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:15,802 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 11:08:15,842 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 11:08:16,015 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,SelfDestructingSolverStorable6 [2022-10-16 11:08:16,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:16,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:16,017 INFO L85 PathProgramCache]: Analyzing trace with hash 952461527, now seen corresponding path program 2 times [2022-10-16 11:08:16,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:16,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401708121] [2022-10-16 11:08:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:16,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:16,306 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 11:08:16,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:16,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401708121] [2022-10-16 11:08:16,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401708121] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:08:16,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130019771] [2022-10-16 11:08:16,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:08:16,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:08:16,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:08:16,316 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 11:08:16,331 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 11:08:16,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:08:16,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:08:16,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:08:16,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:08:16,453 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 11:08:16,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:08:16,530 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 11:08:16,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130019771] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:08:16,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:08:16,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 11:08:16,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519261326] [2022-10-16 11:08:16,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:08:16,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:08:16,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:16,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:08:16,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:08:16,534 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:16,740 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2022-10-16 11:08:16,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:08:16,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 11:08:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:16,742 INFO L225 Difference]: With dead ends: 44 [2022-10-16 11:08:16,742 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 11:08:16,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 59 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 11:08:16,744 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 56 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:16,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 10 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:08:16,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 11:08:16,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 11:08:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 11:08:16,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-10-16 11:08:16,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:16,746 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 11:08:16,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:08:16,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 11:08:16,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 11:08:16,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-10-16 11:08:16,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-10-16 11:08:16,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-10-16 11:08:16,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-10-16 11:08:16,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-10-16 11:08:16,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-10-16 11:08:16,789 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 11:08:16,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:08:16,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 11:08:17,052 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 527) no Hoare annotation was computed. [2022-10-16 11:08:17,053 INFO L899 garLoopResultBuilder]: For program point L527-1(line 527) no Hoare annotation was computed. [2022-10-16 11:08:17,053 INFO L899 garLoopResultBuilder]: For program point L527-2(lines 527 530) no Hoare annotation was computed. [2022-10-16 11:08:17,053 INFO L899 garLoopResultBuilder]: For program point L527-4(lines 527 530) no Hoare annotation was computed. [2022-10-16 11:08:17,053 INFO L899 garLoopResultBuilder]: For program point L527-5(line 527) no Hoare annotation was computed. [2022-10-16 11:08:17,053 INFO L899 garLoopResultBuilder]: For program point L527-6(line 527) no Hoare annotation was computed. [2022-10-16 11:08:17,054 INFO L895 garLoopResultBuilder]: At program point L527-7(lines 527 530) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 2147483647) .cse0 .cse1))) [2022-10-16 11:08:17,054 INFO L899 garLoopResultBuilder]: For program point L527-8(lines 527 530) no Hoare annotation was computed. [2022-10-16 11:08:17,054 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 11:08:17,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 527) no Hoare annotation was computed. [2022-10-16 11:08:17,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 11:08:17,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 532) no Hoare annotation was computed. [2022-10-16 11:08:17,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 11:08:17,055 INFO L899 garLoopResultBuilder]: For program point L532(line 532) no Hoare annotation was computed. [2022-10-16 11:08:17,055 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 517) no Hoare annotation was computed. [2022-10-16 11:08:17,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 527) no Hoare annotation was computed. [2022-10-16 11:08:17,056 INFO L902 garLoopResultBuilder]: At program point L516-3(lines 516 517) the Hoare annotation is: true [2022-10-16 11:08:17,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 11:08:17,056 INFO L899 garLoopResultBuilder]: For program point L516-4(lines 516 517) no Hoare annotation was computed. [2022-10-16 11:08:17,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 532) no Hoare annotation was computed. [2022-10-16 11:08:17,056 INFO L902 garLoopResultBuilder]: At program point L533(lines 520 534) the Hoare annotation is: true [2022-10-16 11:08:17,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 527) no Hoare annotation was computed. [2022-10-16 11:08:17,057 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 524) no Hoare annotation was computed. [2022-10-16 11:08:17,057 INFO L899 garLoopResultBuilder]: For program point L522-2(lines 522 524) no Hoare annotation was computed. [2022-10-16 11:08:17,057 INFO L902 garLoopResultBuilder]: At program point L518(lines 513 519) the Hoare annotation is: true [2022-10-16 11:08:17,061 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:08:17,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 11:08:17,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:08:17 BoogieIcfgContainer [2022-10-16 11:08:17,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 11:08:17,081 INFO L158 Benchmark]: Toolchain (without parser) took 4637.65ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 123.5MB in the beginning and 86.2MB in the end (delta: 37.3MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. [2022-10-16 11:08:17,081 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory was 122.0MB in the beginning and 122.0MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 11:08:17,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.08ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 108.2MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-16 11:08:17,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.62ms. Allocated memory is still 151.0MB. Free memory was 108.0MB in the beginning and 106.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 11:08:17,082 INFO L158 Benchmark]: Boogie Preprocessor took 29.68ms. Allocated memory is still 151.0MB. Free memory was 106.1MB in the beginning and 104.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 11:08:17,083 INFO L158 Benchmark]: RCFGBuilder took 386.38ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 130.2MB in the end (delta: -25.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 11:08:17,083 INFO L158 Benchmark]: TraceAbstraction took 3708.33ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 129.2MB in the beginning and 86.2MB in the end (delta: 43.0MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2022-10-16 11:08:17,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory was 122.0MB in the beginning and 122.0MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 454.08ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 108.2MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.62ms. Allocated memory is still 151.0MB. Free memory was 108.0MB in the beginning and 106.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.68ms. Allocated memory is still 151.0MB. Free memory was 106.1MB in the beginning and 104.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 386.38ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 130.2MB in the end (delta: -25.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3708.33ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 129.2MB in the beginning and 86.2MB in the end (delta: 43.0MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 527]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 527]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 527]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 527]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 532]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 532]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 166 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 69 mSDtfsCounter, 220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=6, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 18 NumberOfFragments, 27 HoareAnnotationTreeSize, 4 FomulaSimplifications, 97 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 75 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 162 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 7 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 102/195 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 527]: Loop Invariant Derived loop invariant: ((i == 0 && 1 <= length1) && length1 <= 2147483647) || (((1 <= i && i < 2147483647) && 1 <= length1) && length1 <= 2147483647) - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 11:08:17,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...