/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:11:57,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:11:57,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:11:57,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:11:57,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:11:57,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:11:57,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:11:57,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:11:57,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:11:57,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:11:57,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:11:57,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:11:57,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:11:57,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:11:57,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:11:57,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:11:57,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:11:57,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:11:57,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:11:57,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:11:57,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:11:57,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:11:57,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:11:57,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:11:57,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:11:57,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:11:57,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:11:57,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:11:57,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:11:57,732 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:11:57,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:11:57,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:11:57,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:11:57,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:11:57,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:11:57,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:11:57,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:11:57,735 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:11:57,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:11:57,735 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:11:57,736 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:11:57,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:11:57,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:11:57,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:11:57,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:11:57,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:11:57,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:11:57,737 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:11:57,737 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:11:57,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:11:57,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:11:57,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:11:57,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:11:57,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:11:57,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:11:57,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:11:57,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:11:57,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:11:57,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:11:57,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:11:57,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:11:57,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:11:57,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:11:58,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:11:58,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:11:58,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:11:58,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:11:58,113 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:11:58,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2022-10-16 11:11:58,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207b2513c/0238be6b2e084e2f9e49403bb627d165/FLAG0bb5697fb [2022-10-16 11:11:58,810 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:11:58,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2022-10-16 11:11:58,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207b2513c/0238be6b2e084e2f9e49403bb627d165/FLAG0bb5697fb [2022-10-16 11:11:59,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207b2513c/0238be6b2e084e2f9e49403bb627d165 [2022-10-16 11:11:59,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:11:59,106 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:11:59,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:11:59,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:11:59,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:11:59,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498127a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59, skipping insertion in model container [2022-10-16 11:11:59,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:11:59,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:11:59,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:11:59,479 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:11:59,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:11:59,591 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:11:59,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59 WrapperNode [2022-10-16 11:11:59,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:11:59,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:11:59,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:11:59,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:11:59,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,689 INFO L138 Inliner]: procedures = 117, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2022-10-16 11:11:59,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:11:59,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:11:59,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:11:59,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:11:59,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:11:59,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:11:59,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:11:59,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:11:59,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (1/1) ... [2022-10-16 11:11:59,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:11:59,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:59,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:11:59,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:11:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:11:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:11:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:11:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:11:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:11:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:11:59,986 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:11:59,988 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:12:00,249 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:12:00,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:12:00,257 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 11:12:00,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:12:00 BoogieIcfgContainer [2022-10-16 11:12:00,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:12:00,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:12:00,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:12:00,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:12:00,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:11:59" (1/3) ... [2022-10-16 11:12:00,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1021316e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:12:00, skipping insertion in model container [2022-10-16 11:12:00,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:11:59" (2/3) ... [2022-10-16 11:12:00,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1021316e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:12:00, skipping insertion in model container [2022-10-16 11:12:00,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:12:00" (3/3) ... [2022-10-16 11:12:00,270 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca-2.i [2022-10-16 11:12:00,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:12:00,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 11:12:00,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:12:00,374 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;@596dbf4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:12:00,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 11:12:00,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:00,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:12:00,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:00,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:12:00,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:00,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:00,395 INFO L85 PathProgramCache]: Analyzing trace with hash 889510733, now seen corresponding path program 1 times [2022-10-16 11:12:00,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:00,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437068329] [2022-10-16 11:12:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:00,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:00,719 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 11:12:00,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:00,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437068329] [2022-10-16 11:12:00,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437068329] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:00,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:00,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:12:00,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770942711] [2022-10-16 11:12:00,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:00,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:12:00,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:00,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:12:00,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:12:00,775 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 11:12:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:00,899 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2022-10-16 11:12:00,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:12:00,903 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 11:12:00,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:00,917 INFO L225 Difference]: With dead ends: 108 [2022-10-16 11:12:00,917 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 11:12:00,925 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 11:12:00,933 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 40 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:00,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 73 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 11:12:00,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2022-10-16 11:12:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 49 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2022-10-16 11:12:00,990 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 6 [2022-10-16 11:12:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:00,991 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-10-16 11:12:00,991 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 11:12:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2022-10-16 11:12:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:12:00,992 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:00,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:12:00,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:12:00,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:00,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:00,994 INFO L85 PathProgramCache]: Analyzing trace with hash 889570315, now seen corresponding path program 1 times [2022-10-16 11:12:00,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:00,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451612619] [2022-10-16 11:12:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:00,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:01,065 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 11:12:01,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:01,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451612619] [2022-10-16 11:12:01,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451612619] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:01,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:01,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:12:01,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108273475] [2022-10-16 11:12:01,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:01,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:12:01,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:01,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:12:01,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:12:01,070 INFO L87 Difference]: Start difference. First operand 50 states and 63 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 11:12:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:01,093 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2022-10-16 11:12:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:12:01,094 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 11:12:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:01,095 INFO L225 Difference]: With dead ends: 50 [2022-10-16 11:12:01,095 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 11:12:01,096 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 11:12:01,097 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:01,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:01,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 11:12:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2022-10-16 11:12:01,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-10-16 11:12:01,105 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 6 [2022-10-16 11:12:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:01,105 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-10-16 11:12:01,106 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 11:12:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-10-16 11:12:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 11:12:01,106 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:01,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:01,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:12:01,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:01,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028999, now seen corresponding path program 1 times [2022-10-16 11:12:01,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:01,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838540995] [2022-10-16 11:12:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:01,227 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 11:12:01,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:01,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838540995] [2022-10-16 11:12:01,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838540995] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:01,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:01,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:12:01,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852585538] [2022-10-16 11:12:01,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:01,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:12:01,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:01,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:12:01,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:12:01,231 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:01,266 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-10-16 11:12:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:12:01,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 11:12:01,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:01,268 INFO L225 Difference]: With dead ends: 32 [2022-10-16 11:12:01,268 INFO L226 Difference]: Without dead ends: 30 [2022-10-16 11:12:01,269 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 11:12:01,270 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:01,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:01,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-16 11:12:01,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-16 11:12:01,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-10-16 11:12:01,277 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 7 [2022-10-16 11:12:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:01,278 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-10-16 11:12:01,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,278 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-10-16 11:12:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:12:01,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:01,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:01,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:12:01,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash 628418293, now seen corresponding path program 1 times [2022-10-16 11:12:01,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:01,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546696715] [2022-10-16 11:12:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:01,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:01,391 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 11:12:01,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:01,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546696715] [2022-10-16 11:12:01,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546696715] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:01,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:01,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:12:01,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815135473] [2022-10-16 11:12:01,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:01,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:12:01,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:01,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:12:01,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:12:01,399 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:01,451 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-10-16 11:12:01,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:12:01,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:12:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:01,453 INFO L225 Difference]: With dead ends: 54 [2022-10-16 11:12:01,453 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 11:12:01,454 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 11:12:01,457 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:01,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 45 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 11:12:01,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-10-16 11:12:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 46 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 11:12:01,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-10-16 11:12:01,478 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 10 [2022-10-16 11:12:01,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:01,479 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-10-16 11:12:01,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,480 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-10-16 11:12:01,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:12:01,480 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:01,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:01,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 11:12:01,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:01,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash 628419956, now seen corresponding path program 1 times [2022-10-16 11:12:01,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:01,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098751750] [2022-10-16 11:12:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:01,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:01,574 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 11:12:01,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:01,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098751750] [2022-10-16 11:12:01,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098751750] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:01,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:01,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:12:01,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269753600] [2022-10-16 11:12:01,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:01,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:01,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:01,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:01,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:01,578 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:01,650 INFO L93 Difference]: Finished difference Result 124 states and 149 transitions. [2022-10-16 11:12:01,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:01,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:12:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:01,654 INFO L225 Difference]: With dead ends: 124 [2022-10-16 11:12:01,655 INFO L226 Difference]: Without dead ends: 83 [2022-10-16 11:12:01,655 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 11:12:01,657 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:01,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 71 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:01,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-16 11:12:01,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 56. [2022-10-16 11:12:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 55 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2022-10-16 11:12:01,674 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 10 [2022-10-16 11:12:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:01,675 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2022-10-16 11:12:01,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2022-10-16 11:12:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:12:01,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:01,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:01,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 11:12:01,680 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:01,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1891541641, now seen corresponding path program 1 times [2022-10-16 11:12:01,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:01,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127446947] [2022-10-16 11:12:01,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:01,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:01,776 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 11:12:01,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:01,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127446947] [2022-10-16 11:12:01,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127446947] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:01,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:01,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:12:01,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863178996] [2022-10-16 11:12:01,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:01,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:12:01,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:12:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:12:01,785 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:01,805 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2022-10-16 11:12:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:12:01,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:12:01,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:01,806 INFO L225 Difference]: With dead ends: 56 [2022-10-16 11:12:01,807 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 11:12:01,807 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 11:12:01,808 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 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 11:12:01,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:01,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 11:12:01,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 33. [2022-10-16 11:12:01,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 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 11:12:01,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-10-16 11:12:01,815 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2022-10-16 11:12:01,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:01,816 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-10-16 11:12:01,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-10-16 11:12:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:12:01,817 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:01,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:01,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 11:12:01,818 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash -180926670, now seen corresponding path program 1 times [2022-10-16 11:12:01,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:01,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829131708] [2022-10-16 11:12:01,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:01,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:01,890 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 11:12:01,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:01,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829131708] [2022-10-16 11:12:01,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829131708] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:01,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:01,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:01,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082277099] [2022-10-16 11:12:01,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:01,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:01,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:01,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:01,894 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:01,930 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-10-16 11:12:01,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:01,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:12:01,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:01,932 INFO L225 Difference]: With dead ends: 56 [2022-10-16 11:12:01,932 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 11:12:01,932 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 11:12:01,933 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:01,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:01,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 11:12:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2022-10-16 11:12:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-10-16 11:12:01,941 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 10 [2022-10-16 11:12:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:01,941 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-10-16 11:12:01,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-10-16 11:12:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:12:01,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:01,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:01,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:12:01,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1993869323, now seen corresponding path program 1 times [2022-10-16 11:12:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:01,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013979498] [2022-10-16 11:12:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:01,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:01,982 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 11:12:01,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:01,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013979498] [2022-10-16 11:12:01,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013979498] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:01,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:01,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:12:01,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471762286] [2022-10-16 11:12:01,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:01,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:12:01,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:01,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:12:01,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:12:01,986 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:02,001 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-10-16 11:12:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:12:02,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 11:12:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:02,002 INFO L225 Difference]: With dead ends: 39 [2022-10-16 11:12:02,002 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 11:12:02,003 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 11:12:02,004 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 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 11:12:02,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:02,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 11:12:02,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-16 11:12:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-10-16 11:12:02,030 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-10-16 11:12:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:02,030 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-10-16 11:12:02,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,031 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-10-16 11:12:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 11:12:02,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:02,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:02,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 11:12:02,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:02,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:02,035 INFO L85 PathProgramCache]: Analyzing trace with hash 36780700, now seen corresponding path program 1 times [2022-10-16 11:12:02,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:02,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916435845] [2022-10-16 11:12:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:02,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:02,159 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 11:12:02,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:02,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916435845] [2022-10-16 11:12:02,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916435845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:02,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:02,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:12:02,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321143028] [2022-10-16 11:12:02,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:02,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:02,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:02,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:02,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:02,164 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:02,189 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-10-16 11:12:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:02,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 11:12:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:02,191 INFO L225 Difference]: With dead ends: 64 [2022-10-16 11:12:02,191 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 11:12:02,191 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 11:12:02,193 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:02,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 55 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:02,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 11:12:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-10-16 11:12:02,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 45 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-10-16 11:12:02,201 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 14 [2022-10-16 11:12:02,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:02,202 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-10-16 11:12:02,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,202 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-10-16 11:12:02,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 11:12:02,203 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:02,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:02,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 11:12:02,204 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash 737845278, now seen corresponding path program 1 times [2022-10-16 11:12:02,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:02,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879867988] [2022-10-16 11:12:02,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:02,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:02,272 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 11:12:02,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879867988] [2022-10-16 11:12:02,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879867988] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:02,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:12:02,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:12:02,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224817746] [2022-10-16 11:12:02,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:02,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:12:02,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:02,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:12:02,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:12:02,278 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:02,311 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-10-16 11:12:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:12:02,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 11:12:02,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:02,312 INFO L225 Difference]: With dead ends: 54 [2022-10-16 11:12:02,312 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 11:12:02,313 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 11:12:02,314 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 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 11:12:02,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:02,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 11:12:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-16 11:12:02,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-10-16 11:12:02,323 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 14 [2022-10-16 11:12:02,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:02,324 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-10-16 11:12:02,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,324 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-10-16 11:12:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:12:02,325 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:02,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:02,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 11:12:02,326 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:02,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1917321044, now seen corresponding path program 1 times [2022-10-16 11:12:02,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:02,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87908502] [2022-10-16 11:12:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:02,404 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 11:12:02,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:02,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87908502] [2022-10-16 11:12:02,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87908502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:02,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287563580] [2022-10-16 11:12:02,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:02,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:02,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:02,407 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 11:12:02,419 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 11:12:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:02,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:02,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:02,556 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 11:12:02,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:02,611 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 11:12:02,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287563580] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:02,612 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:02,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:12:02,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146315500] [2022-10-16 11:12:02,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:02,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:12:02,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:02,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:12:02,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:12:02,614 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:02,728 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions. [2022-10-16 11:12:02,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:12:02,729 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 11:12:02,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:02,730 INFO L225 Difference]: With dead ends: 152 [2022-10-16 11:12:02,730 INFO L226 Difference]: Without dead ends: 151 [2022-10-16 11:12:02,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:12:02,732 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 96 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:02,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 121 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:02,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-16 11:12:02,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 86. [2022-10-16 11:12:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 85 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 99 transitions. [2022-10-16 11:12:02,745 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 99 transitions. Word has length 16 [2022-10-16 11:12:02,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:02,746 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 99 transitions. [2022-10-16 11:12:02,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 99 transitions. [2022-10-16 11:12:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 11:12:02,747 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:02,747 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:02,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:02,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 11:12:02,963 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:02,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash 692589843, now seen corresponding path program 1 times [2022-10-16 11:12:02,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:02,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013475935] [2022-10-16 11:12:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:02,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:03,041 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 11:12:03,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:03,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013475935] [2022-10-16 11:12:03,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013475935] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:03,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264608077] [2022-10-16 11:12:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:03,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:03,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:03,044 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 11:12:03,071 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 11:12:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:03,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:03,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:03,152 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 11:12:03,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:03,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264608077] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:03,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:03,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:12:03,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959785766] [2022-10-16 11:12:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:03,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:12:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:03,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:12:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:12:03,155 INFO L87 Difference]: Start difference. First operand 86 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:03,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:03,205 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2022-10-16 11:12:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:12:03,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 11:12:03,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:03,208 INFO L225 Difference]: With dead ends: 101 [2022-10-16 11:12:03,208 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 11:12:03,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:03,209 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:03,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 106 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:03,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 11:12:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2022-10-16 11:12:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 84 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:03,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-10-16 11:12:03,221 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 17 [2022-10-16 11:12:03,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:03,221 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-10-16 11:12:03,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-10-16 11:12:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:12:03,222 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:03,223 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:03,259 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 11:12:03,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 11:12:03,438 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:03,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:03,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1973612760, now seen corresponding path program 1 times [2022-10-16 11:12:03,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:03,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393168143] [2022-10-16 11:12:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:03,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:03,517 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 11:12:03,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:03,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393168143] [2022-10-16 11:12:03,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393168143] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:03,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783139964] [2022-10-16 11:12:03,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:03,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:03,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:03,519 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 11:12:03,551 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 11:12:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:03,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:03,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:03,624 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 11:12:03,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:03,671 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 11:12:03,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783139964] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:03,672 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:03,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:12:03,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872751779] [2022-10-16 11:12:03,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:03,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:12:03,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:03,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:12:03,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:12:03,691 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:03,792 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2022-10-16 11:12:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:12:03,793 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 11:12:03,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:03,794 INFO L225 Difference]: With dead ends: 107 [2022-10-16 11:12:03,794 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 11:12:03,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:12:03,795 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:03,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 122 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:03,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 11:12:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2022-10-16 11:12:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.1313131313131313) internal successors, (112), 101 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2022-10-16 11:12:03,807 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 20 [2022-10-16 11:12:03,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:03,807 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2022-10-16 11:12:03,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:03,808 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2022-10-16 11:12:03,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 11:12:03,809 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:03,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:03,840 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 11:12:04,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:04,024 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:04,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1052453501, now seen corresponding path program 1 times [2022-10-16 11:12:04,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:04,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377840350] [2022-10-16 11:12:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:04,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:04,101 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 11:12:04,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:04,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377840350] [2022-10-16 11:12:04,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377840350] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:04,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756431897] [2022-10-16 11:12:04,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:04,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:04,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:04,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:04,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:12:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:04,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:12:04,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:04,213 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 11:12:04,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:12:04,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756431897] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:12:04,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:12:04,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:12:04,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787923650] [2022-10-16 11:12:04,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:12:04,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:12:04,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:04,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:12:04,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:12:04,215 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:04,268 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-10-16 11:12:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:12:04,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 11:12:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:04,270 INFO L225 Difference]: With dead ends: 102 [2022-10-16 11:12:04,270 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 11:12:04,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:12:04,272 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:04,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 74 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:12:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 11:12:04,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-10-16 11:12:04,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 99 states have (on average 1.101010101010101) internal successors, (109), 100 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2022-10-16 11:12:04,288 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 21 [2022-10-16 11:12:04,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:04,288 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2022-10-16 11:12:04,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2022-10-16 11:12:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:12:04,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:04,294 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:04,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:04,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:04,508 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:04,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 733845530, now seen corresponding path program 2 times [2022-10-16 11:12:04,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:04,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744975885] [2022-10-16 11:12:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:04,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:04,688 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 11:12:04,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:04,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744975885] [2022-10-16 11:12:04,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744975885] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:04,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792203052] [2022-10-16 11:12:04,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:12:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:04,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:04,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:04,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:12:04,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:12:04,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:12:04,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:12:04,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 11:12:04,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:04,914 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 11:12:04,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792203052] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:04,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:04,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 11:12:04,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851528857] [2022-10-16 11:12:04,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:04,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:12:04,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:04,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:12:04,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:12:04,918 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:05,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:05,172 INFO L93 Difference]: Finished difference Result 307 states and 319 transitions. [2022-10-16 11:12:05,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:12:05,172 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 11:12:05,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:05,174 INFO L225 Difference]: With dead ends: 307 [2022-10-16 11:12:05,174 INFO L226 Difference]: Without dead ends: 266 [2022-10-16 11:12:05,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 11:12:05,176 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 248 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:05,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 90 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-10-16 11:12:05,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 47. [2022-10-16 11:12:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2022-10-16 11:12:05,185 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 34 [2022-10-16 11:12:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:05,185 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2022-10-16 11:12:05,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2022-10-16 11:12:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:12:05,186 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:12:05,186 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:05,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:05,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 11:12:05,405 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 11:12:05,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:12:05,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1777905158, now seen corresponding path program 2 times [2022-10-16 11:12:05,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:12:05,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928252791] [2022-10-16 11:12:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:12:05,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:12:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:12:05,689 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 11:12:05,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:12:05,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928252791] [2022-10-16 11:12:05,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928252791] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:12:05,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915443386] [2022-10-16 11:12:05,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:12:05,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:12:05,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:12:05,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:12:05,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:12:05,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:12:05,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:12:05,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:12:05,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:12:05,847 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 11:12:05,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:12:05,933 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 11:12:05,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915443386] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:12:05,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:12:05,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 11:12:05,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497476782] [2022-10-16 11:12:05,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:12:05,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:12:05,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:12:05,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:12:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:12:05,937 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:06,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:12:06,130 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2022-10-16 11:12:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:12:06,131 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 11:12:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:12:06,132 INFO L225 Difference]: With dead ends: 57 [2022-10-16 11:12:06,132 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 11:12:06,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 69 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 11:12:06,134 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 64 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:12:06,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 76 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:12:06,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 11:12:06,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 11:12:06,135 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 11:12:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 11:12:06,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-10-16 11:12:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:12:06,137 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 11:12:06,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:12:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 11:12:06,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 11:12:06,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-10-16 11:12:06,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-10-16 11:12:06,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-10-16 11:12:06,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-10-16 11:12:06,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-10-16 11:12:06,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-10-16 11:12:06,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-10-16 11:12:06,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-10-16 11:12:06,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-10-16 11:12:06,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-10-16 11:12:06,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-10-16 11:12:06,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-10-16 11:12:06,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:12:06,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:12:06,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 11:12:12,880 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 118 DAG size of output: 115 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 11:12:13,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-16 11:12:13,296 INFO L899 garLoopResultBuilder]: For program point L531-1(lines 531 533) no Hoare annotation was computed. [2022-10-16 11:12:13,296 INFO L902 garLoopResultBuilder]: At program point L523(lines 513 524) the Hoare annotation is: true [2022-10-16 11:12:13,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-10-16 11:12:13,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-16 11:12:13,297 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 11:12:13,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-16 11:12:13,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 11:12:13,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-16 11:12:13,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 11:12:13,298 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 530) no Hoare annotation was computed. [2022-10-16 11:12:13,298 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 525 548) no Hoare annotation was computed. [2022-10-16 11:12:13,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-10-16 11:12:13,298 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 520 522) no Hoare annotation was computed. [2022-10-16 11:12:13,298 INFO L902 garLoopResultBuilder]: At program point L520-3(lines 520 522) the Hoare annotation is: true [2022-10-16 11:12:13,298 INFO L899 garLoopResultBuilder]: For program point L520-4(lines 520 522) no Hoare annotation was computed. [2022-10-16 11:12:13,299 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-16 11:12:13,299 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-10-16 11:12:13,299 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 11:12:13,299 INFO L899 garLoopResultBuilder]: For program point L541-1(line 541) no Hoare annotation was computed. [2022-10-16 11:12:13,299 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-16 11:12:13,299 INFO L899 garLoopResultBuilder]: For program point L541-2(lines 541 544) no Hoare annotation was computed. [2022-10-16 11:12:13,299 INFO L899 garLoopResultBuilder]: For program point L541-4(lines 541 544) no Hoare annotation was computed. [2022-10-16 11:12:13,300 INFO L899 garLoopResultBuilder]: For program point L537-1(line 537) no Hoare annotation was computed. [2022-10-16 11:12:13,300 INFO L899 garLoopResultBuilder]: For program point L541-5(line 541) no Hoare annotation was computed. [2022-10-16 11:12:13,300 INFO L899 garLoopResultBuilder]: For program point L537-2(lines 537 540) no Hoare annotation was computed. [2022-10-16 11:12:13,300 INFO L899 garLoopResultBuilder]: For program point L541-6(line 541) no Hoare annotation was computed. [2022-10-16 11:12:13,300 INFO L895 garLoopResultBuilder]: At program point L541-7(lines 541 544) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse5 (< |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and .cse0 (<= |ULTIMATE.start_main_~length2~0#1| 1) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse5 (< |ULTIMATE.start_main_~i~1#1| 2147483647) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse4))) [2022-10-16 11:12:13,301 INFO L899 garLoopResultBuilder]: For program point L537-4(lines 537 540) no Hoare annotation was computed. [2022-10-16 11:12:13,301 INFO L899 garLoopResultBuilder]: For program point L541-8(lines 541 544) no Hoare annotation was computed. [2022-10-16 11:12:13,301 INFO L899 garLoopResultBuilder]: For program point L537-5(line 537) no Hoare annotation was computed. [2022-10-16 11:12:13,301 INFO L899 garLoopResultBuilder]: For program point L537-6(line 537) no Hoare annotation was computed. [2022-10-16 11:12:13,301 INFO L895 garLoopResultBuilder]: At program point L537-7(lines 537 540) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 2147483647) .cse0 .cse1 .cse2 .cse3))) [2022-10-16 11:12:13,301 INFO L899 garLoopResultBuilder]: For program point L537-8(lines 537 540) no Hoare annotation was computed. [2022-10-16 11:12:13,301 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-10-16 11:12:13,302 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 522) no Hoare annotation was computed. [2022-10-16 11:12:13,302 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-10-16 11:12:13,302 INFO L899 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2022-10-16 11:12:13,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-16 11:12:13,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-10-16 11:12:13,302 INFO L902 garLoopResultBuilder]: At program point L522(lines 515 524) the Hoare annotation is: true [2022-10-16 11:12:13,303 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-16 11:12:13,303 INFO L902 garLoopResultBuilder]: At program point L547(lines 525 548) the Hoare annotation is: true [2022-10-16 11:12:13,306 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:12:13,309 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 11:12:13,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:12:13 BoogieIcfgContainer [2022-10-16 11:12:13,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 11:12:13,327 INFO L158 Benchmark]: Toolchain (without parser) took 14226.05ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 123.7MB in the beginning and 304.7MB in the end (delta: -181.0MB). Peak memory consumption was 224.7MB. Max. memory is 8.0GB. [2022-10-16 11:12:13,328 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 121.2MB in the end (delta: 88.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 11:12:13,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.06ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 107.6MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-16 11:12:13,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.93ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 105.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 11:12:13,329 INFO L158 Benchmark]: Boogie Preprocessor took 64.93ms. Allocated memory is still 151.0MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 11:12:13,329 INFO L158 Benchmark]: RCFGBuilder took 499.93ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 127.6MB in the end (delta: -23.6MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-10-16 11:12:13,330 INFO L158 Benchmark]: TraceAbstraction took 13064.36ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 127.1MB in the beginning and 304.7MB in the end (delta: -177.6MB). Peak memory consumption was 228.7MB. Max. memory is 8.0GB. [2022-10-16 11:12:13,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 121.2MB in the end (delta: 88.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 485.06ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 107.6MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 94.93ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 105.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.93ms. Allocated memory is still 151.0MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 499.93ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 127.6MB in the end (delta: -23.6MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * TraceAbstraction took 13064.36ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 127.1MB in the beginning and 304.7MB in the end (delta: -177.6MB). Peak memory consumption was 228.7MB. 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: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: 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, 43 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 668 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 668 mSDsluCounter, 1066 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 701 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 476 IncrementalHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 365 mSDtfsCounter, 476 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=13, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 400 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 32 NumberOfFragments, 107 HoareAnnotationTreeSize, 6 FomulaSimplifications, 37674 FormulaSimplificationTreeSizeReduction, 6.6s HoareSimplificationTime, 6 FomulaSimplificationsInter, 57022 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 390 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 472 ConstructedInterpolants, 0 QuantifiedInterpolants, 1222 SizeOfPredicates, 14 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 204/390 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 12 specifications checked. All of them hold - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((((((i == 0 && length2 <= 1) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || ((((((i == 0 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && length2 <= 2147483647)) || (((((((i < 2147483647 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && 1 <= i) && length2 <= 2147483647) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: ((((i == 0 && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || (((((1 <= i && i < 2147483647) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) RESULT: Ultimate proved your program to be correct! [2022-10-16 11:12:13,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...