/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/termination-memory-alloca/twisted-alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:59:55,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:59:55,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:59:55,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:59:55,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:59:55,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:59:55,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:59:55,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:59:55,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:59:55,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:59:55,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:59:55,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:59:55,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:59:55,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:59:55,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:59:55,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:59:55,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:59:55,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:59:55,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:59:55,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:59:55,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:59:55,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:59:55,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:59:55,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:59:55,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:59:55,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:59:55,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:59:55,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:59:55,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:59:55,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:59:55,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:59:55,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:59:55,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:59:55,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:59:55,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:59:55,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:59:55,487 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 17:59:55,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:59:55,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:59:55,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:59:55,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:59:55,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:59:55,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:59:55,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:59:55,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:59:55,520 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:59:55,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:59:55,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:59:55,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:59:55,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:59:55,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:59:55,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:59:55,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:59:55,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:59:55,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:59:55,522 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:59:55,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:59:55,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:59:55,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:59:55,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:59:55,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:59:55,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:59:55,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:59:55,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:59:55,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:59:55,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:59:55,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:59:55,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:59:55,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:59:55,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:59:55,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:59:55,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:59:55,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:59:55,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:59:55,922 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:59:55,922 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:59:55,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2022-10-16 17:59:55,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7f1d487/3b9a55e668e74de2ba9449c19588682f/FLAGe89360757 [2022-10-16 17:59:56,696 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:59:56,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2022-10-16 17:59:56,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7f1d487/3b9a55e668e74de2ba9449c19588682f/FLAGe89360757 [2022-10-16 17:59:57,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7f1d487/3b9a55e668e74de2ba9449c19588682f [2022-10-16 17:59:57,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:59:57,020 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:59:57,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:59:57,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:59:57,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:59:57,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66bb3838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57, skipping insertion in model container [2022-10-16 17:59:57,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:59:57,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:59:57,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:59:57,388 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:59:57,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:59:57,475 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:59:57,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57 WrapperNode [2022-10-16 17:59:57,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:59:57,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:59:57,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:59:57,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:59:57,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,562 INFO L138 Inliner]: procedures = 111, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2022-10-16 17:59:57,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:59:57,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:59:57,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:59:57,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:59:57,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:59:57,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:59:57,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:59:57,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:59:57,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (1/1) ... [2022-10-16 17:59:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:59:57,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:59:57,667 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 17:59:57,682 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 17:59:57,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:59:57,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:59:57,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:59:57,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:59:57,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:59:57,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:59:57,851 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:59:57,853 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:59:58,121 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:59:58,164 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:59:58,164 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 17:59:58,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:59:58 BoogieIcfgContainer [2022-10-16 17:59:58,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:59:58,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:59:58,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:59:58,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:59:58,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:59:57" (1/3) ... [2022-10-16 17:59:58,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1456d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:59:58, skipping insertion in model container [2022-10-16 17:59:58,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:59:57" (2/3) ... [2022-10-16 17:59:58,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1456d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:59:58, skipping insertion in model container [2022-10-16 17:59:58,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:59:58" (3/3) ... [2022-10-16 17:59:58,183 INFO L112 eAbstractionObserver]: Analyzing ICFG twisted-alloca.i [2022-10-16 17:59:58,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:59:58,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 17:59:58,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:59:58,312 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;@61f47d0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:59:58,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 17:59:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.6) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:59:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:59:58,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:59:58,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:59:58,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:59:58,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:59:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash 889536581, now seen corresponding path program 1 times [2022-10-16 17:59:58,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:59:58,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908089489] [2022-10-16 17:59:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:59:58,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:59:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:59:59,856 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 17:59:59,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:59:59,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908089489] [2022-10-16 17:59:59,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908089489] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:59:59,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:59:59,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:59:59,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984441233] [2022-10-16 17:59:59,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:59:59,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:59:59,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:59:59,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:59:59,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:59:59,911 INFO L87 Difference]: Start difference. First operand has 27 states, 20 states have (on average 1.6) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 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 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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 18:00:00,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:00,019 INFO L93 Difference]: Finished difference Result 74 states and 88 transitions. [2022-10-16 18:00:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 18:00:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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 18:00:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:00,034 INFO L225 Difference]: With dead ends: 74 [2022-10-16 18:00:00,034 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 18:00:00,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 18:00:00,043 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:00,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 78 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:00:00,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 18:00:00,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2022-10-16 18:00:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-10-16 18:00:00,089 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 6 [2022-10-16 18:00:00,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:00,090 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-10-16 18:00:00,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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 18:00:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-10-16 18:00:00,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 18:00:00,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:00,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:00,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 18:00:00,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:00,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:00,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1805830281, now seen corresponding path program 1 times [2022-10-16 18:00:00,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:00,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107141645] [2022-10-16 18:00:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:00,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:00,888 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 18:00:00,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:00,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107141645] [2022-10-16 18:00:00,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107141645] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:00,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:00:00,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:00:00,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071985189] [2022-10-16 18:00:00,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:00,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 18:00:00,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:00,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 18:00:00,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:00:00,893 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 18:00:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:00,955 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-10-16 18:00:00,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 18:00:00,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 18:00:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:00,957 INFO L225 Difference]: With dead ends: 41 [2022-10-16 18:00:00,957 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 18:00:00,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 18:00:00,959 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:00,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 58 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:00:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 18:00:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 28. [2022-10-16 18:00:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-10-16 18:00:00,967 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 7 [2022-10-16 18:00:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:00,968 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-10-16 18:00:00,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 18:00:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-10-16 18:00:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 18:00:00,969 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:00,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:00,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 18:00:00,970 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:00,971 INFO L85 PathProgramCache]: Analyzing trace with hash 234666248, now seen corresponding path program 1 times [2022-10-16 18:00:00,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:00,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945174700] [2022-10-16 18:00:00,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:00,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:01,045 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 18:00:01,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:01,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945174700] [2022-10-16 18:00:01,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945174700] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:01,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:00:01,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 18:00:01,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444436228] [2022-10-16 18:00:01,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:01,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:00:01,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:01,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:00:01,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:00:01,049 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:01,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:01,081 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-10-16 18:00:01,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:00:01,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 18:00:01,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:01,083 INFO L225 Difference]: With dead ends: 28 [2022-10-16 18:00:01,083 INFO L226 Difference]: Without dead ends: 27 [2022-10-16 18:00:01,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 18:00:01,089 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:01,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 53 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:00:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-16 18:00:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-16 18:00:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:01,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-10-16 18:00:01,100 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2022-10-16 18:00:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:01,102 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-10-16 18:00:01,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:01,102 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-10-16 18:00:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 18:00:01,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:01,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:01,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 18:00:01,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:01,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1315280837, now seen corresponding path program 1 times [2022-10-16 18:00:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:01,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741470074] [2022-10-16 18:00:01,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:01,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:01,298 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 18:00:01,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:01,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741470074] [2022-10-16 18:00:01,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741470074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:01,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:00:01,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:00:01,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366141766] [2022-10-16 18:00:01,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:01,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 18:00:01,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:01,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 18:00:01,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:00:01,304 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 18:00:01,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:01,395 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-10-16 18:00:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 18:00:01,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 18:00:01,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:01,398 INFO L225 Difference]: With dead ends: 38 [2022-10-16 18:00:01,398 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 18:00:01,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 18:00:01,407 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:01,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 66 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:00:01,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 18:00:01,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-16 18:00:01,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:01,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-10-16 18:00:01,425 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 10 [2022-10-16 18:00:01,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:01,426 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-10-16 18:00:01,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 18:00:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-10-16 18:00:01,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 18:00:01,429 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:01,429 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:01,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 18:00:01,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:01,430 INFO L85 PathProgramCache]: Analyzing trace with hash -727698849, now seen corresponding path program 1 times [2022-10-16 18:00:01,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:01,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8030968] [2022-10-16 18:00:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:01,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:01,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:01,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8030968] [2022-10-16 18:00:01,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8030968] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:01,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10275668] [2022-10-16 18:00:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:01,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:01,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:00:01,835 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 18:00:01,866 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 18:00:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:01,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 18:00:01,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:00:02,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:02,355 INFO L356 Elim1Store]: treesize reduction 204, result has 28.7 percent of original size [2022-10-16 18:00:02,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 292 [2022-10-16 18:00:02,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 198 [2022-10-16 18:00:02,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 18:00:02,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 18:00:02,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 18:00:03,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:03,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:03,523 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:03,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 126 treesize of output 81 [2022-10-16 18:00:03,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:03,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:03,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:03,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:03,583 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:03,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 224 treesize of output 165 [2022-10-16 18:00:03,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:03,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:03,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 37 [2022-10-16 18:00:03,698 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 18:00:03,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-10-16 18:00:03,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 18:00:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:03,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 18:00:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:03,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10275668] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 18:00:03,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 18:00:03,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2022-10-16 18:00:03,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548799448] [2022-10-16 18:00:03,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 18:00:03,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 18:00:03,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:03,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 18:00:03,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-10-16 18:00:03,844 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:04,051 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2022-10-16 18:00:04,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 18:00:04,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 18:00:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:04,054 INFO L225 Difference]: With dead ends: 95 [2022-10-16 18:00:04,055 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 18:00:04,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2022-10-16 18:00:04,057 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 128 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:04,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 126 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 18:00:04,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 18:00:04,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 46. [2022-10-16 18:00:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 45 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 18:00:04,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-10-16 18:00:04,067 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 11 [2022-10-16 18:00:04,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:04,067 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-10-16 18:00:04,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:04,068 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-10-16 18:00:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 18:00:04,069 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:04,069 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:04,109 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 18:00:04,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:04,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:04,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1083827793, now seen corresponding path program 1 times [2022-10-16 18:00:04,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:04,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348013982] [2022-10-16 18:00:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:04,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:04,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:04,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348013982] [2022-10-16 18:00:04,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348013982] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:04,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:00:04,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 18:00:04,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619528251] [2022-10-16 18:00:04,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:04,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 18:00:04,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:04,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 18:00:04,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 18:00:04,426 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:04,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:04,476 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2022-10-16 18:00:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 18:00:04,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 18:00:04,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:04,482 INFO L225 Difference]: With dead ends: 46 [2022-10-16 18:00:04,482 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 18:00:04,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 18:00:04,485 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:04,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 37 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:00:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 18:00:04,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-16 18:00:04,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 44 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2022-10-16 18:00:04,500 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 12 [2022-10-16 18:00:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:04,501 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-10-16 18:00:04,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:04,501 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2022-10-16 18:00:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 18:00:04,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:04,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:04,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 18:00:04,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash 837301078, now seen corresponding path program 1 times [2022-10-16 18:00:04,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:04,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168104126] [2022-10-16 18:00:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:04,760 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 18:00:04,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:04,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168104126] [2022-10-16 18:00:04,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168104126] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:04,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:00:04,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 18:00:04,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439911242] [2022-10-16 18:00:04,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:04,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 18:00:04,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:04,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 18:00:04,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 18:00:04,765 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:04,838 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2022-10-16 18:00:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 18:00:04,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 18:00:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:04,841 INFO L225 Difference]: With dead ends: 62 [2022-10-16 18:00:04,842 INFO L226 Difference]: Without dead ends: 56 [2022-10-16 18:00:04,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-10-16 18:00:04,843 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:04,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 57 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:00:04,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-16 18:00:04,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2022-10-16 18:00:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 1.3695652173913044) 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 18:00:04,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2022-10-16 18:00:04,869 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 13 [2022-10-16 18:00:04,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:04,869 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-10-16 18:00:04,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:04,870 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2022-10-16 18:00:04,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 18:00:04,871 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:04,871 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:04,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 18:00:04,872 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:04,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:04,873 INFO L85 PathProgramCache]: Analyzing trace with hash 524960786, now seen corresponding path program 1 times [2022-10-16 18:00:04,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:04,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672938979] [2022-10-16 18:00:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:04,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:05,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:05,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:05,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672938979] [2022-10-16 18:00:05,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672938979] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:05,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000160748] [2022-10-16 18:00:05,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:05,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:05,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:00:05,115 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 18:00:05,136 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 18:00:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:05,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 18:00:05,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:00:05,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 18:00:05,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-10-16 18:00:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:05,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:00:05,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000160748] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:05,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 18:00:05,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-16 18:00:05,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290483437] [2022-10-16 18:00:05,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:05,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 18:00:05,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:05,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 18:00:05,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-10-16 18:00:05,276 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:05,309 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2022-10-16 18:00:05,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 18:00:05,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 18:00:05,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:05,313 INFO L225 Difference]: With dead ends: 50 [2022-10-16 18:00:05,313 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 18:00:05,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-16 18:00:05,315 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:05,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 30 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:00:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 18:00:05,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2022-10-16 18:00:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 46 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 18:00:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2022-10-16 18:00:05,322 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 15 [2022-10-16 18:00:05,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:05,323 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2022-10-16 18:00:05,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2022-10-16 18:00:05,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 18:00:05,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:05,324 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:05,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 18:00:05,537 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,SelfDestructingSolverStorable7 [2022-10-16 18:00:05,538 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:05,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash 524959216, now seen corresponding path program 1 times [2022-10-16 18:00:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:05,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655544009] [2022-10-16 18:00:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:05,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:06,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:06,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655544009] [2022-10-16 18:00:06,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655544009] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:06,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418404001] [2022-10-16 18:00:06,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:06,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:06,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:00:06,351 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 18:00:06,360 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 18:00:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:06,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 18:00:06,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:00:06,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 838 treesize of output 822 [2022-10-16 18:00:06,755 INFO L356 Elim1Store]: treesize reduction 204, result has 28.7 percent of original size [2022-10-16 18:00:06,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 292 [2022-10-16 18:00:06,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 18:00:06,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 18:00:06,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 18:00:08,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,375 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:08,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 64 [2022-10-16 18:00:08,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:08,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 18:00:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,423 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:08,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 451 treesize of output 354 [2022-10-16 18:00:08,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:08,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 18:00:08,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,552 INFO L356 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-10-16 18:00:08,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 462 treesize of output 432 [2022-10-16 18:00:08,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 362 treesize of output 354 [2022-10-16 18:00:08,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,606 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:08,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 64 [2022-10-16 18:00:08,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:08,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 18:00:08,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:08,637 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:08,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 136 treesize of output 75 [2022-10-16 18:00:08,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:08,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 18:00:08,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2022-10-16 18:00:08,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 18:00:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:08,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 18:00:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:09,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418404001] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 18:00:09,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 18:00:09,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2022-10-16 18:00:09,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560125089] [2022-10-16 18:00:09,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 18:00:09,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 18:00:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 18:00:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-10-16 18:00:09,154 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:09,304 INFO L93 Difference]: Finished difference Result 71 states and 88 transitions. [2022-10-16 18:00:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 18:00:09,305 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 18:00:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:09,306 INFO L225 Difference]: With dead ends: 71 [2022-10-16 18:00:09,306 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 18:00:09,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-10-16 18:00:09,307 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:09,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 130 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 31 Unchecked, 0.1s Time] [2022-10-16 18:00:09,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 18:00:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-16 18:00:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.32) internal successors, (66), 52 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2022-10-16 18:00:09,315 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 15 [2022-10-16 18:00:09,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:09,316 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2022-10-16 18:00:09,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2022-10-16 18:00:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 18:00:09,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:09,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:09,361 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 18:00:09,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:09,532 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:09,533 INFO L85 PathProgramCache]: Analyzing trace with hash 526126704, now seen corresponding path program 1 times [2022-10-16 18:00:09,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:09,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784546444] [2022-10-16 18:00:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:09,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:10,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:10,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784546444] [2022-10-16 18:00:10,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784546444] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:10,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327566795] [2022-10-16 18:00:10,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:10,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:10,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:00:10,053 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 18:00:10,063 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 18:00:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:10,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 18:00:10,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:00:10,494 INFO L356 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-10-16 18:00:10,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 218 treesize of output 356 [2022-10-16 18:00:10,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-10-16 18:00:10,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-16 18:00:10,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-16 18:00:10,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:10,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:10,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-10-16 18:00:11,962 INFO L356 Elim1Store]: treesize reduction 312, result has 21.6 percent of original size [2022-10-16 18:00:11,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 428 treesize of output 609 [2022-10-16 18:00:14,917 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:14,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:14,997 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:14,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,083 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 18:00:15,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,138 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 18:00:15,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,171 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 18:00:15,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,237 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:15,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 11 [2022-10-16 18:00:15,302 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:15,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 11 [2022-10-16 18:00:15,353 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 18:00:15,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,454 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:15,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,509 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:15,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,614 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 18:00:15,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,739 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 18:00:15,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,794 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:15,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:15,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:15,851 INFO L356 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-10-16 18:00:15,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:17,726 INFO L356 Elim1Store]: treesize reduction 91, result has 5.2 percent of original size [2022-10-16 18:00:17,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:17,799 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:17,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 11 [2022-10-16 18:00:17,845 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:17,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 47 [2022-10-16 18:00:17,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:17,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 48 [2022-10-16 18:00:17,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:17,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:17,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:17,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 94 [2022-10-16 18:00:17,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:17,984 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-10-16 18:00:17,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 19 [2022-10-16 18:00:18,034 INFO L356 Elim1Store]: treesize reduction 71, result has 6.6 percent of original size [2022-10-16 18:00:18,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 19 [2022-10-16 18:00:18,122 INFO L356 Elim1Store]: treesize reduction 114, result has 4.2 percent of original size [2022-10-16 18:00:18,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:18,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,164 INFO L356 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2022-10-16 18:00:18,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:18,213 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 18:00:18,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:18,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,267 INFO L356 Elim1Store]: treesize reduction 59, result has 7.8 percent of original size [2022-10-16 18:00:18,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:18,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,316 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 18:00:18,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:18,376 INFO L356 Elim1Store]: treesize reduction 91, result has 5.2 percent of original size [2022-10-16 18:00:18,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 82 treesize of output 26 [2022-10-16 18:00:18,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 53 [2022-10-16 18:00:18,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,467 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-10-16 18:00:18,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:18,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,528 INFO L356 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2022-10-16 18:00:18,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 118 treesize of output 58 [2022-10-16 18:00:18,638 INFO L356 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-10-16 18:00:18,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:18,705 INFO L356 Elim1Store]: treesize reduction 120, result has 4.0 percent of original size [2022-10-16 18:00:18,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:18,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:18,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 16 [2022-10-16 18:00:18,946 INFO L356 Elim1Store]: treesize reduction 143, result has 3.4 percent of original size [2022-10-16 18:00:18,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:19,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:19,063 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-10-16 18:00:19,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 58 [2022-10-16 18:00:19,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:19,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:19,105 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 18:00:19,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 53 [2022-10-16 18:00:19,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:19,158 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-10-16 18:00:19,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 24 [2022-10-16 18:00:19,291 INFO L356 Elim1Store]: treesize reduction 114, result has 4.2 percent of original size [2022-10-16 18:00:19,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 26 [2022-10-16 18:00:21,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:21,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:21,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:22,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:22,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:22,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:22,407 INFO L356 Elim1Store]: treesize reduction 76, result has 9.5 percent of original size [2022-10-16 18:00:22,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 326 treesize of output 241 [2022-10-16 18:00:22,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:22,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 18:00:22,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-10-16 18:00:22,943 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-10-16 18:00:22,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 38 [2022-10-16 18:00:22,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 18:00:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:23,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 18:00:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:23,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327566795] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:23,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 18:00:23,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 6] total 13 [2022-10-16 18:00:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952345718] [2022-10-16 18:00:23,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:23,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 18:00:23,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 18:00:23,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-10-16 18:00:23,187 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:23,246 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2022-10-16 18:00:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 18:00:23,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 18:00:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:23,247 INFO L225 Difference]: With dead ends: 65 [2022-10-16 18:00:23,247 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 18:00:23,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-10-16 18:00:23,249 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:23,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 63 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2022-10-16 18:00:23,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 18:00:23,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2022-10-16 18:00:23,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 62 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:23,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-10-16 18:00:23,256 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 15 [2022-10-16 18:00:23,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:23,257 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-10-16 18:00:23,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:23,257 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-10-16 18:00:23,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 18:00:23,258 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:23,258 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:23,300 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 18:00:23,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:23,471 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1559636917, now seen corresponding path program 1 times [2022-10-16 18:00:23,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:23,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688263208] [2022-10-16 18:00:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:23,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:24,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:24,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688263208] [2022-10-16 18:00:24,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688263208] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:24,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533804221] [2022-10-16 18:00:24,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:24,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:24,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:00:24,027 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 18:00:24,050 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 18:00:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:24,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 18:00:24,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:00:24,709 INFO L356 Elim1Store]: treesize reduction 324, result has 30.9 percent of original size [2022-10-16 18:00:24,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 216 treesize of output 529 [2022-10-16 18:00:24,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 18:00:24,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 18:00:24,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 18:00:24,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 18:00:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:29,528 INFO L356 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2022-10-16 18:00:29,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 633 treesize of output 576 [2022-10-16 18:00:29,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-10-16 18:00:29,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:29,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-10-16 18:00:29,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:29,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 18:00:29,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:29,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:29,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:29,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:29,966 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-10-16 18:00:29,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 309 treesize of output 262 [2022-10-16 18:00:30,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-10-16 18:00:30,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:30,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-10-16 18:00:30,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:30,651 INFO L356 Elim1Store]: treesize reduction 97, result has 17.8 percent of original size [2022-10-16 18:00:30,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 2115 treesize of output 1802 [2022-10-16 18:00:30,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-10-16 18:00:31,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-10-16 18:00:31,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-16 18:00:31,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-10-16 18:00:31,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:31,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:32,380 INFO L356 Elim1Store]: treesize reduction 145, result has 37.2 percent of original size [2022-10-16 18:00:32,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 1057 treesize of output 1025 [2022-10-16 18:00:32,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 18:00:32,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 18:00:32,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 18:00:32,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:33,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-10-16 18:00:33,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2022-10-16 18:00:33,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2022-10-16 18:00:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:33,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 18:00:33,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533804221] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:33,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 18:00:33,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 19 [2022-10-16 18:00:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472250994] [2022-10-16 18:00:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:33,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 18:00:33,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:33,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 18:00:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=294, Unknown=3, NotChecked=0, Total=342 [2022-10-16 18:00:33,463 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:33,798 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2022-10-16 18:00:33,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 18:00:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 18:00:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:33,800 INFO L225 Difference]: With dead ends: 87 [2022-10-16 18:00:33,800 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 18:00:33,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=50, Invalid=325, Unknown=5, NotChecked=0, Total=380 [2022-10-16 18:00:33,802 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:33,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 85 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 27 Unchecked, 0.1s Time] [2022-10-16 18:00:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 18:00:33,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-10-16 18:00:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 68 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2022-10-16 18:00:33,814 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 18 [2022-10-16 18:00:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:33,814 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2022-10-16 18:00:33,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2022-10-16 18:00:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 18:00:33,815 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:33,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:33,842 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 18:00:34,026 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,SelfDestructingSolverStorable10 [2022-10-16 18:00:34,030 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:34,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:34,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1560804405, now seen corresponding path program 1 times [2022-10-16 18:00:34,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:34,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266208384] [2022-10-16 18:00:34,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:34,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:34,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:34,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266208384] [2022-10-16 18:00:34,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266208384] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 18:00:34,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 18:00:34,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 18:00:34,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331802916] [2022-10-16 18:00:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 18:00:34,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 18:00:34,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:34,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 18:00:34,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 18:00:34,785 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:34,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:34,852 INFO L93 Difference]: Finished difference Result 94 states and 113 transitions. [2022-10-16 18:00:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 18:00:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 18:00:34,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:34,855 INFO L225 Difference]: With dead ends: 94 [2022-10-16 18:00:34,855 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 18:00:34,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 18:00:34,857 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:34,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 65 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 18:00:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 18:00:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2022-10-16 18:00:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 64 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:34,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2022-10-16 18:00:34,876 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 18 [2022-10-16 18:00:34,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:34,876 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2022-10-16 18:00:34,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:34,876 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2022-10-16 18:00:34,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 18:00:34,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:34,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:34,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 18:00:34,883 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:34,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:34,883 INFO L85 PathProgramCache]: Analyzing trace with hash -633855292, now seen corresponding path program 1 times [2022-10-16 18:00:34,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:34,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417850129] [2022-10-16 18:00:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:34,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:35,599 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 18:00:35,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:35,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417850129] [2022-10-16 18:00:35,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417850129] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:35,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230287333] [2022-10-16 18:00:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:35,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:35,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:00:35,601 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 18:00:35,620 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 18:00:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:35,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 18:00:35,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:00:35,977 INFO L356 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-10-16 18:00:35,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 104 treesize of output 304 [2022-10-16 18:00:35,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-10-16 18:00:36,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-16 18:00:36,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-16 18:00:36,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2022-10-16 18:00:36,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:36,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:36,277 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 18:00:36,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-10-16 18:00:37,134 INFO L356 Elim1Store]: treesize reduction 99, result has 22.7 percent of original size [2022-10-16 18:00:37,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 486 treesize of output 473 [2022-10-16 18:00:37,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:37,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-10-16 18:00:37,530 INFO L356 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2022-10-16 18:00:37,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 68 [2022-10-16 18:00:37,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:37,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:38,098 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-10-16 18:00:38,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 38 [2022-10-16 18:00:38,253 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 18:00:38,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2022-10-16 18:00:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 18:00:38,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 18:00:38,504 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 18:00:38,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230287333] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 18:00:38,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 18:00:38,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2022-10-16 18:00:38,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181830120] [2022-10-16 18:00:38,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 18:00:38,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 18:00:38,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 18:00:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 18:00:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-10-16 18:00:38,507 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:38,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 18:00:38,838 INFO L93 Difference]: Finished difference Result 99 states and 120 transitions. [2022-10-16 18:00:38,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 18:00:38,839 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 18:00:38,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 18:00:38,842 INFO L225 Difference]: With dead ends: 99 [2022-10-16 18:00:38,842 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 18:00:38,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2022-10-16 18:00:38,845 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 38 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 18:00:38,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 169 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 138 Invalid, 0 Unknown, 38 Unchecked, 0.1s Time] [2022-10-16 18:00:38,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 18:00:38,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 64. [2022-10-16 18:00:38,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 61 states have (on average 1.278688524590164) internal successors, (78), 63 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:38,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2022-10-16 18:00:38,859 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 19 [2022-10-16 18:00:38,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 18:00:38,859 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2022-10-16 18:00:38,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 18:00:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2022-10-16 18:00:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 18:00:38,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 18:00:38,862 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 18:00:38,908 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 18:00:39,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:39,078 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 18:00:39,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 18:00:39,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1825322508, now seen corresponding path program 1 times [2022-10-16 18:00:39,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 18:00:39,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596567736] [2022-10-16 18:00:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:39,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 18:00:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:39,684 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 18:00:39,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 18:00:39,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596567736] [2022-10-16 18:00:39,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596567736] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 18:00:39,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701461537] [2022-10-16 18:00:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 18:00:39,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:00:39,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 18:00:39,686 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 18:00:39,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 18:00:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 18:00:39,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 18:00:39,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 18:00:40,068 INFO L356 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-10-16 18:00:40,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 104 treesize of output 304 [2022-10-16 18:00:40,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-10-16 18:00:40,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-16 18:00:40,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2022-10-16 18:00:40,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2022-10-16 18:00:40,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:40,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 18:00:40,367 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 18:00:40,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-10-16 18:00:41,317 INFO L356 Elim1Store]: treesize reduction 216, result has 3.6 percent of original size [2022-10-16 18:00:41,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 379 treesize of output 140 [2022-10-16 18:00:41,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:41,968 INFO L356 Elim1Store]: treesize reduction 312, result has 21.6 percent of original size [2022-10-16 18:00:41,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 682 treesize of output 903 [2022-10-16 18:00:42,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 73 [2022-10-16 18:00:42,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 73 [2022-10-16 18:00:43,664 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 18:00:43,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 11 [2022-10-16 18:00:43,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 18:00:43,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:43,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 18:00:43,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 16 [2022-10-16 18:00:43,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-10-16 18:00:43,868 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 18:01:54,524 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-10-16 18:01:54,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 18:01:54,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 18:01:54,726 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 345679 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 345679 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 54 more [2022-10-16 18:01:54,732 INFO L158 Benchmark]: Toolchain (without parser) took 117715.90ms. Allocated memory was 154.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 127.9MB in the beginning and 4.3GB in the end (delta: -4.2GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2022-10-16 18:01:54,732 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 154.1MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 18:01:54,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.62ms. Allocated memory is still 154.1MB. Free memory was 127.7MB in the beginning and 112.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-16 18:01:54,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.40ms. Allocated memory is still 154.1MB. Free memory was 112.4MB in the beginning and 110.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 18:01:54,733 INFO L158 Benchmark]: Boogie Preprocessor took 63.70ms. Allocated memory is still 154.1MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 18:01:54,733 INFO L158 Benchmark]: RCFGBuilder took 538.36ms. Allocated memory is still 154.1MB. Free memory was 109.1MB in the beginning and 135.5MB in the end (delta: -26.4MB). Peak memory consumption was 16.7MB. Max. memory is 8.0GB. [2022-10-16 18:01:54,734 INFO L158 Benchmark]: TraceAbstraction took 116555.74ms. Allocated memory was 154.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 134.4MB in the beginning and 4.3GB in the end (delta: -4.2GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2022-10-16 18:01:54,735 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 154.1MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 455.62ms. Allocated memory is still 154.1MB. Free memory was 127.7MB in the beginning and 112.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 84.40ms. Allocated memory is still 154.1MB. Free memory was 112.4MB in the beginning and 110.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.70ms. Allocated memory is still 154.1MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 538.36ms. Allocated memory is still 154.1MB. Free memory was 109.1MB in the beginning and 135.5MB in the end (delta: -26.4MB). Peak memory consumption was 16.7MB. Max. memory is 8.0GB. * TraceAbstraction took 116555.74ms. Allocated memory was 154.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 134.4MB in the beginning and 4.3GB in the end (delta: -4.2GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 345679 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 345679 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-10-16 18:01:54,910 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 1 Received shutdown request...