/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/nsqm-iff.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:43:02,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:43:02,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:43:02,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:43:02,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:43:02,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:43:02,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:43:02,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:43:02,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:43:02,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:43:02,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:43:02,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:43:02,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:43:02,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:43:02,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:43:02,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:43:02,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:43:02,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:43:02,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:43:02,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:43:02,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:43:02,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:43:02,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:43:02,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:43:02,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:43:02,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:43:02,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:43:02,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:43:02,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:43:02,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:43:02,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:43:02,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:43:02,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:43:02,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:43:02,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:43:02,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:43:02,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:43:02,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:43:02,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:43:02,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:43:02,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:43:02,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:43:02,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:43:02,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:43:02,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:43:02,666 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:43:02,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:43:02,667 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:43:02,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:43:02,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:43:02,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:43:02,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:43:02,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:43:02,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:43:02,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:43:02,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:43:02,669 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:43:02,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:43:02,670 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:43:02,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:43:02,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:43:02,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:43:02,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:43:02,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:43:02,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:43:02,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:43:02,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:43:02,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:43:02,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:43:02,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:43:02,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:43:03,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:43:03,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:43:03,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:43:03,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:43:03,113 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:43:03,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/nsqm-iff.c [2022-10-16 10:43:03,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e641a2db/f195165639e242a38223d08151703b69/FLAGdb47dc7ec [2022-10-16 10:43:03,869 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:43:03,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm-iff.c [2022-10-16 10:43:03,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e641a2db/f195165639e242a38223d08151703b69/FLAGdb47dc7ec [2022-10-16 10:43:04,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e641a2db/f195165639e242a38223d08151703b69 [2022-10-16 10:43:04,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:43:04,247 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:43:04,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:43:04,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:43:04,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:43:04,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a36be04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04, skipping insertion in model container [2022-10-16 10:43:04,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:43:04,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:43:04,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm-iff.c[591,604] [2022-10-16 10:43:04,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:43:04,533 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:43:04,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm-iff.c[591,604] [2022-10-16 10:43:04,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:43:04,603 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:43:04,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04 WrapperNode [2022-10-16 10:43:04,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:43:04,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:43:04,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:43:04,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:43:04,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,652 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2022-10-16 10:43:04,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:43:04,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:43:04,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:43:04,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:43:04,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,686 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:43:04,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:43:04,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:43:04,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:43:04,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (1/1) ... [2022-10-16 10:43:04,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:43:04,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:04,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:43:04,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:43:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:43:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:43:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:43:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:43:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:43:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:43:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:43:04,922 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:43:04,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:43:05,346 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:43:05,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:43:05,360 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:43:05,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:43:05 BoogieIcfgContainer [2022-10-16 10:43:05,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:43:05,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:43:05,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:43:05,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:43:05,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:43:04" (1/3) ... [2022-10-16 10:43:05,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647d759d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:43:05, skipping insertion in model container [2022-10-16 10:43:05,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:43:04" (2/3) ... [2022-10-16 10:43:05,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647d759d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:43:05, skipping insertion in model container [2022-10-16 10:43:05,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:43:05" (3/3) ... [2022-10-16 10:43:05,375 INFO L112 eAbstractionObserver]: Analyzing ICFG nsqm-iff.c [2022-10-16 10:43:05,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:43:05,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 10:43:05,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:43:05,509 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;@210c69e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:43:05,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 10:43:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 73 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:05,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:43:05,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:05,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:05,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash 177631247, now seen corresponding path program 1 times [2022-10-16 10:43:05,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:05,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730805996] [2022-10-16 10:43:05,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:05,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:05,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:05,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:05,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730805996] [2022-10-16 10:43:05,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730805996] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:05,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:05,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:43:05,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10646131] [2022-10-16 10:43:05,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:05,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:43:05,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:05,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:43:05,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:43:05,832 INFO L87 Difference]: Start difference. First operand has 74 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 73 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:05,859 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2022-10-16 10:43:05,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:43:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:43:05,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:05,875 INFO L225 Difference]: With dead ends: 143 [2022-10-16 10:43:05,875 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 10:43:05,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:43:05,884 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:05,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:43:05,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 10:43:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-10-16 10:43:05,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 43 states have (on average 1.6744186046511629) internal successors, (72), 67 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2022-10-16 10:43:05,942 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 8 [2022-10-16 10:43:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:05,943 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2022-10-16 10:43:05,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:05,944 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2022-10-16 10:43:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:43:05,944 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:05,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:05,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:43:05,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:05,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:05,948 INFO L85 PathProgramCache]: Analyzing trace with hash 179478289, now seen corresponding path program 1 times [2022-10-16 10:43:05,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:05,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501511276] [2022-10-16 10:43:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:05,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:06,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:06,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501511276] [2022-10-16 10:43:06,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501511276] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:06,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:06,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:43:06,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905382163] [2022-10-16 10:43:06,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:06,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:43:06,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:06,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:43:06,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:43:06,082 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:06,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:06,321 INFO L93 Difference]: Finished difference Result 161 states and 178 transitions. [2022-10-16 10:43:06,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:43:06,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:43:06,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:06,323 INFO L225 Difference]: With dead ends: 161 [2022-10-16 10:43:06,324 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 10:43:06,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:43:06,327 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 30 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:06,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 80 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:06,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 10:43:06,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 78. [2022-10-16 10:43:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.5849056603773586) internal successors, (84), 77 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2022-10-16 10:43:06,340 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 8 [2022-10-16 10:43:06,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:06,341 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2022-10-16 10:43:06,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:06,341 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2022-10-16 10:43:06,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:43:06,342 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:06,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:06,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:43:06,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:06,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1268858058, now seen corresponding path program 1 times [2022-10-16 10:43:06,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:06,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640346245] [2022-10-16 10:43:06,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:06,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:06,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640346245] [2022-10-16 10:43:06,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640346245] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:06,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:06,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:43:06,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165925401] [2022-10-16 10:43:06,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:06,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:43:06,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:06,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:43:06,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:43:06,498 INFO L87 Difference]: Start difference. First operand 78 states and 84 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 10:43:06,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:06,624 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2022-10-16 10:43:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:43:06,625 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 10:43:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:06,627 INFO L225 Difference]: With dead ends: 98 [2022-10-16 10:43:06,627 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 10:43:06,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:43:06,629 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 28 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:06,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 129 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:43:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 10:43:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2022-10-16 10:43:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 80 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2022-10-16 10:43:06,642 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 9 [2022-10-16 10:43:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:06,642 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2022-10-16 10:43:06,643 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 10:43:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2022-10-16 10:43:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:43:06,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:06,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:06,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:43:06,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:06,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash 678658903, now seen corresponding path program 1 times [2022-10-16 10:43:06,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:06,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646643481] [2022-10-16 10:43:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:06,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:06,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:06,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:06,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646643481] [2022-10-16 10:43:06,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646643481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:06,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:06,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:43:06,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545556386] [2022-10-16 10:43:06,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:06,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:43:06,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:06,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:43:06,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:43:06,778 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:06,894 INFO L93 Difference]: Finished difference Result 149 states and 159 transitions. [2022-10-16 10:43:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:43:06,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:43:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:06,896 INFO L225 Difference]: With dead ends: 149 [2022-10-16 10:43:06,896 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 10:43:06,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:43:06,899 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:06,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 73 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:43:06,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 10:43:06,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 80. [2022-10-16 10:43:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.5) internal successors, (84), 79 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2022-10-16 10:43:06,921 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 10 [2022-10-16 10:43:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:06,922 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions. [2022-10-16 10:43:06,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions. [2022-10-16 10:43:06,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:43:06,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:06,923 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:06,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 10:43:06,924 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash -337454983, now seen corresponding path program 1 times [2022-10-16 10:43:06,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:06,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855296965] [2022-10-16 10:43:06,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:06,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:07,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:07,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855296965] [2022-10-16 10:43:07,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855296965] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:07,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783558455] [2022-10-16 10:43:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:07,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:07,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:07,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:07,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:43:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:07,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:43:07,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:07,173 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 10:43:07,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:43:07,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783558455] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:07,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:43:07,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-16 10:43:07,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255519673] [2022-10-16 10:43:07,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:07,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:43:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:43:07,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:43:07,177 INFO L87 Difference]: Start difference. First operand 80 states and 84 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:07,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:07,279 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2022-10-16 10:43:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:43:07,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 10:43:07,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:07,283 INFO L225 Difference]: With dead ends: 85 [2022-10-16 10:43:07,284 INFO L226 Difference]: Without dead ends: 84 [2022-10-16 10:43:07,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:43:07,289 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 40 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:07,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 98 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:43:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-16 10:43:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2022-10-16 10:43:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 78 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2022-10-16 10:43:07,316 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 13 [2022-10-16 10:43:07,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:07,320 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2022-10-16 10:43:07,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:07,320 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2022-10-16 10:43:07,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:43:07,321 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:07,321 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:07,357 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 10:43:07,522 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 10:43:07,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:07,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:07,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1871169820, now seen corresponding path program 1 times [2022-10-16 10:43:07,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:07,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004318092] [2022-10-16 10:43:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:07,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:07,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:07,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:07,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004318092] [2022-10-16 10:43:07,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004318092] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:07,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967589330] [2022-10-16 10:43:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:07,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:07,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:07,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:07,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:43:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:07,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:43:07,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:07,767 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 10:43:07,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:43:07,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967589330] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:07,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:43:07,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 10:43:07,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322121445] [2022-10-16 10:43:07,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:07,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:43:07,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:07,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:43:07,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:43:07,771 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:07,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:07,906 INFO L93 Difference]: Finished difference Result 162 states and 172 transitions. [2022-10-16 10:43:07,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:43:07,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:43:07,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:07,909 INFO L225 Difference]: With dead ends: 162 [2022-10-16 10:43:07,909 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 10:43:07,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:43:07,922 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 36 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:07,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 130 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:43:07,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 10:43:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 76. [2022-10-16 10:43:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 75 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 10:43:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-10-16 10:43:07,940 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 14 [2022-10-16 10:43:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:07,941 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-10-16 10:43:07,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-10-16 10:43:07,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:43:07,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:07,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:07,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:08,155 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,SelfDestructingSolverStorable5 [2022-10-16 10:43:08,156 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:08,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:08,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2121990847, now seen corresponding path program 1 times [2022-10-16 10:43:08,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:08,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994328171] [2022-10-16 10:43:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:08,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:08,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:08,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994328171] [2022-10-16 10:43:08,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994328171] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:08,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061873008] [2022-10-16 10:43:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:08,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:08,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:08,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:08,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:43:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:08,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:43:08,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:08,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:08,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061873008] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:08,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:08,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:43:08,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624628768] [2022-10-16 10:43:08,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:08,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:43:08,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:43:08,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:43:08,481 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 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 10:43:08,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:08,805 INFO L93 Difference]: Finished difference Result 182 states and 194 transitions. [2022-10-16 10:43:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:43:08,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 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) Word has length 15 [2022-10-16 10:43:08,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:08,807 INFO L225 Difference]: With dead ends: 182 [2022-10-16 10:43:08,807 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 10:43:08,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:43:08,809 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 340 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:08,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 173 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 10:43:08,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 87. [2022-10-16 10:43:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 86 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2022-10-16 10:43:08,819 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 15 [2022-10-16 10:43:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:08,819 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2022-10-16 10:43:08,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 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 10:43:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2022-10-16 10:43:08,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:43:08,821 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:08,821 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:08,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:09,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:09,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:09,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:09,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2123277787, now seen corresponding path program 1 times [2022-10-16 10:43:09,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:09,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883680253] [2022-10-16 10:43:09,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:09,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:09,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:09,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883680253] [2022-10-16 10:43:09,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883680253] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:09,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829575176] [2022-10-16 10:43:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:09,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:09,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:09,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:09,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:43:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:09,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:43:09,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:09,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:43:09,543 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 10:43:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:09,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:09,645 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 14 treesize of output 12 [2022-10-16 10:43:09,651 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 26 treesize of output 20 [2022-10-16 10:43:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:09,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829575176] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:09,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:09,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-10-16 10:43:09,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549377996] [2022-10-16 10:43:09,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:09,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:43:09,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:09,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:43:09,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:43:09,673 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand has 16 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:10,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:10,004 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2022-10-16 10:43:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:43:10,004 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:43:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:10,006 INFO L225 Difference]: With dead ends: 122 [2022-10-16 10:43:10,006 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:43:10,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:43:10,008 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 75 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:10,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 188 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:43:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2022-10-16 10:43:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 90 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2022-10-16 10:43:10,018 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 15 [2022-10-16 10:43:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:10,019 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 96 transitions. [2022-10-16 10:43:10,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 96 transitions. [2022-10-16 10:43:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:43:10,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:10,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:10,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:10,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:10,236 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:10,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1394216835, now seen corresponding path program 1 times [2022-10-16 10:43:10,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:10,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692794108] [2022-10-16 10:43:10,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:10,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:10,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:43:10,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:10,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692794108] [2022-10-16 10:43:10,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692794108] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:10,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:10,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:43:10,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854061335] [2022-10-16 10:43:10,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:10,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:43:10,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:10,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:43:10,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:43:10,300 INFO L87 Difference]: Start difference. First operand 91 states and 96 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 10:43:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:10,371 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2022-10-16 10:43:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:43:10,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 10:43:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:10,373 INFO L225 Difference]: With dead ends: 104 [2022-10-16 10:43:10,373 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 10:43:10,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:43:10,375 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 21 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:10,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 116 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:43:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 10:43:10,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2022-10-16 10:43:10,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.2857142857142858) internal successors, (99), 93 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2022-10-16 10:43:10,383 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 18 [2022-10-16 10:43:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:10,384 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2022-10-16 10:43:10,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 10:43:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2022-10-16 10:43:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:43:10,385 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:10,385 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:10,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 10:43:10,386 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:10,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash 17526016, now seen corresponding path program 1 times [2022-10-16 10:43:10,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:10,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376501885] [2022-10-16 10:43:10,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:43:10,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:10,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376501885] [2022-10-16 10:43:10,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376501885] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:10,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041853984] [2022-10-16 10:43:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:10,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:10,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:10,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:10,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:43:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:10,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:43:10,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:43:10,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:43:10,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041853984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:10,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:43:10,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 10:43:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346250479] [2022-10-16 10:43:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:10,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:43:10,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:10,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:43:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:43:10,542 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:10,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:10,623 INFO L93 Difference]: Finished difference Result 149 states and 159 transitions. [2022-10-16 10:43:10,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:43:10,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:43:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:10,624 INFO L225 Difference]: With dead ends: 149 [2022-10-16 10:43:10,624 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 10:43:10,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:43:10,626 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 51 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:10,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 95 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:43:10,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 10:43:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2022-10-16 10:43:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.236842105263158) internal successors, (94), 89 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2022-10-16 10:43:10,638 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 23 [2022-10-16 10:43:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:10,640 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2022-10-16 10:43:10,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2022-10-16 10:43:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:43:10,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:10,645 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:10,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:10,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 10:43:10,862 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:10,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:10,863 INFO L85 PathProgramCache]: Analyzing trace with hash -939616216, now seen corresponding path program 1 times [2022-10-16 10:43:10,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:10,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794673679] [2022-10-16 10:43:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:10,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:43:11,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:11,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794673679] [2022-10-16 10:43:11,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794673679] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:11,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:11,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 10:43:11,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610650372] [2022-10-16 10:43:11,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:11,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:43:11,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:11,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:43:11,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:43:11,125 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:11,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:11,275 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2022-10-16 10:43:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 10:43:11,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:43:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:11,276 INFO L225 Difference]: With dead ends: 90 [2022-10-16 10:43:11,277 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 10:43:11,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:43:11,278 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 12 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:11,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 173 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:43:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 10:43:11,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-10-16 10:43:11,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 76 states have (on average 1.2236842105263157) internal successors, (93), 88 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:11,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2022-10-16 10:43:11,284 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 25 [2022-10-16 10:43:11,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:11,284 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2022-10-16 10:43:11,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:11,285 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2022-10-16 10:43:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 10:43:11,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:11,286 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:11,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:43:11,286 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:11,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:11,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1868370076, now seen corresponding path program 1 times [2022-10-16 10:43:11,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:11,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404013966] [2022-10-16 10:43:11,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:11,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:11,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:11,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404013966] [2022-10-16 10:43:11,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404013966] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:11,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242497634] [2022-10-16 10:43:11,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:11,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:11,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:11,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:11,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:43:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:11,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:43:11,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:11,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:11,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242497634] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:11,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:11,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:43:11,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038442061] [2022-10-16 10:43:11,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:11,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:43:11,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:11,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:43:11,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:43:11,740 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:11,985 INFO L93 Difference]: Finished difference Result 181 states and 187 transitions. [2022-10-16 10:43:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:43:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 10:43:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:11,987 INFO L225 Difference]: With dead ends: 181 [2022-10-16 10:43:11,987 INFO L226 Difference]: Without dead ends: 139 [2022-10-16 10:43:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:43:11,988 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 197 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:11,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 211 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:11,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-10-16 10:43:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 98. [2022-10-16 10:43:11,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.2) internal successors, (102), 97 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2022-10-16 10:43:11,996 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 26 [2022-10-16 10:43:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:11,996 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2022-10-16 10:43:11,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:11,997 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2022-10-16 10:43:11,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:43:11,998 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:11,998 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:12,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:12,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:12,214 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:12,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:12,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1028049270, now seen corresponding path program 1 times [2022-10-16 10:43:12,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:12,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152478653] [2022-10-16 10:43:12,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:12,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:12,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:12,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152478653] [2022-10-16 10:43:12,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152478653] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:12,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969016920] [2022-10-16 10:43:12,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:12,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:12,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:12,313 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:12,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:43:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:12,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 10:43:12,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:12,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:12,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969016920] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:12,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:12,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 10:43:12,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153402989] [2022-10-16 10:43:12,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:12,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:43:12,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:12,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:43:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:43:12,527 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:12,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:12,818 INFO L93 Difference]: Finished difference Result 145 states and 155 transitions. [2022-10-16 10:43:12,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:43:12,819 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 10:43:12,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:12,822 INFO L225 Difference]: With dead ends: 145 [2022-10-16 10:43:12,822 INFO L226 Difference]: Without dead ends: 144 [2022-10-16 10:43:12,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:43:12,823 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 185 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:12,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 145 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-10-16 10:43:12,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 128. [2022-10-16 10:43:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 115 states have (on average 1.2) internal successors, (138), 127 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2022-10-16 10:43:12,832 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 27 [2022-10-16 10:43:12,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:12,833 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 138 transitions. [2022-10-16 10:43:12,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2022-10-16 10:43:12,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 10:43:12,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:12,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:12,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:13,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:13,050 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:13,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash -862529682, now seen corresponding path program 1 times [2022-10-16 10:43:13,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:13,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074869691] [2022-10-16 10:43:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:13,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:13,066 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:43:13,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295392973] [2022-10-16 10:43:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:13,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:13,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:13,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:13,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:43:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:13,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:43:13,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:43:13,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:43:13,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:13,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074869691] [2022-10-16 10:43:13,154 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:43:13,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295392973] [2022-10-16 10:43:13,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295392973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:13,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:13,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:43:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856081562] [2022-10-16 10:43:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:13,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:43:13,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:13,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:43:13,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:43:13,156 INFO L87 Difference]: Start difference. First operand 128 states and 138 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 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 10:43:13,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:13,216 INFO L93 Difference]: Finished difference Result 137 states and 147 transitions. [2022-10-16 10:43:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:43:13,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 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) Word has length 32 [2022-10-16 10:43:13,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:13,218 INFO L225 Difference]: With dead ends: 137 [2022-10-16 10:43:13,218 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 10:43:13,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:43:13,219 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 16 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:13,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 105 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:43:13,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 10:43:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2022-10-16 10:43:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 120 states have (on average 1.1916666666666667) internal successors, (143), 132 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2022-10-16 10:43:13,228 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 32 [2022-10-16 10:43:13,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:13,228 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2022-10-16 10:43:13,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 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 10:43:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2022-10-16 10:43:13,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:43:13,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:13,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:13,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:13,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:43:13,444 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:13,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:13,445 INFO L85 PathProgramCache]: Analyzing trace with hash -968616213, now seen corresponding path program 1 times [2022-10-16 10:43:13,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:13,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771799620] [2022-10-16 10:43:13,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:13,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:13,470 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:43:13,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [598634270] [2022-10-16 10:43:13,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:13,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:13,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:13,475 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:13,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:43:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:13,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:43:13,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:43:13,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:43:13,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:13,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771799620] [2022-10-16 10:43:13,579 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:43:13,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598634270] [2022-10-16 10:43:13,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598634270] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:43:13,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:43:13,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:43:13,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249928343] [2022-10-16 10:43:13,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:43:13,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:43:13,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:13,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:43:13,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:43:13,584 INFO L87 Difference]: Start difference. First operand 133 states and 143 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:13,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:13,635 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2022-10-16 10:43:13,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:43:13,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 10:43:13,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:13,641 INFO L225 Difference]: With dead ends: 134 [2022-10-16 10:43:13,641 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 10:43:13,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:43:13,642 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 16 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:13,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 93 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:43:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 10:43:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2022-10-16 10:43:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 129 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 140 transitions. [2022-10-16 10:43:13,653 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 140 transitions. Word has length 33 [2022-10-16 10:43:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:13,654 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 140 transitions. [2022-10-16 10:43:13,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 140 transitions. [2022-10-16 10:43:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:43:13,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:13,655 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:13,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:13,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:43:13,868 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:13,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1532973953, now seen corresponding path program 1 times [2022-10-16 10:43:13,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:13,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335604258] [2022-10-16 10:43:13,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:13,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:13,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335604258] [2022-10-16 10:43:13,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335604258] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:13,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790229091] [2022-10-16 10:43:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:13,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:13,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:13,997 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:14,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:43:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:14,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 10:43:14,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:14,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:14,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790229091] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:14,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:14,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-10-16 10:43:14,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583845422] [2022-10-16 10:43:14,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:14,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 10:43:14,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:14,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 10:43:14,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:43:14,240 INFO L87 Difference]: Start difference. First operand 130 states and 140 transitions. Second operand has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:14,645 INFO L93 Difference]: Finished difference Result 207 states and 217 transitions. [2022-10-16 10:43:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 10:43:14,645 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 10:43:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:14,647 INFO L225 Difference]: With dead ends: 207 [2022-10-16 10:43:14,647 INFO L226 Difference]: Without dead ends: 206 [2022-10-16 10:43:14,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:43:14,649 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 442 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:14,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 202 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:14,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-16 10:43:14,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 132. [2022-10-16 10:43:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 131 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2022-10-16 10:43:14,659 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 33 [2022-10-16 10:43:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:14,659 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2022-10-16 10:43:14,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2022-10-16 10:43:14,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:43:14,660 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:14,660 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:14,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-16 10:43:14,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:43:14,873 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:14,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:14,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1531687013, now seen corresponding path program 1 times [2022-10-16 10:43:14,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:14,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293486201] [2022-10-16 10:43:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:14,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:15,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:15,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293486201] [2022-10-16 10:43:15,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293486201] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:15,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681886633] [2022-10-16 10:43:15,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:15,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:15,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:15,650 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:15,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:43:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:15,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 10:43:15,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:15,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:43:15,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:43:15,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:43:15,926 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:43:15,927 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 1 case distinctions, treesize of input 37 treesize of output 39 [2022-10-16 10:43:16,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:43:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:43:16,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:43:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:43:16,160 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 10:43:16,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 53 [2022-10-16 10:43:16,400 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:43:16,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 17 [2022-10-16 10:43:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:16,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:16,773 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 14 treesize of output 12 [2022-10-16 10:43:16,777 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 26 treesize of output 20 [2022-10-16 10:43:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:16,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681886633] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:16,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:16,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 38 [2022-10-16 10:43:16,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875434559] [2022-10-16 10:43:16,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:16,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 10:43:16,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:16,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 10:43:16,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1265, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 10:43:16,807 INFO L87 Difference]: Start difference. First operand 132 states and 143 transitions. Second operand has 39 states, 38 states have (on average 2.3157894736842106) internal successors, (88), 39 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:17,929 INFO L93 Difference]: Finished difference Result 155 states and 166 transitions. [2022-10-16 10:43:17,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 10:43:17,930 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.3157894736842106) internal successors, (88), 39 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 10:43:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:17,931 INFO L225 Difference]: With dead ends: 155 [2022-10-16 10:43:17,931 INFO L226 Difference]: Without dead ends: 154 [2022-10-16 10:43:17,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=425, Invalid=2437, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 10:43:17,933 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 111 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:17,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 465 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:43:17,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-10-16 10:43:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 136. [2022-10-16 10:43:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 126 states have (on average 1.1428571428571428) internal successors, (144), 135 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 144 transitions. [2022-10-16 10:43:17,942 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 144 transitions. Word has length 33 [2022-10-16 10:43:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:17,942 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 144 transitions. [2022-10-16 10:43:17,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.3157894736842106) internal successors, (88), 39 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:17,942 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 144 transitions. [2022-10-16 10:43:17,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 10:43:17,943 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:17,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:17,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 10:43:18,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 10:43:18,157 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:18,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:18,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1582473402, now seen corresponding path program 1 times [2022-10-16 10:43:18,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:18,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768824121] [2022-10-16 10:43:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:18,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:19,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:19,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768824121] [2022-10-16 10:43:19,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768824121] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:19,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585492614] [2022-10-16 10:43:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:19,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:19,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:19,127 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:19,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:43:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:19,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 10:43:19,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:19,216 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 10 treesize of output 8 [2022-10-16 10:43:19,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:43:19,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:43:19,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:43:19,694 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:43:20,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:43:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:20,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:53,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585492614] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:53,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:53,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 39 [2022-10-16 10:43:53,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705817395] [2022-10-16 10:43:53,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:53,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:43:53,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:53,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:43:53,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1317, Unknown=18, NotChecked=0, Total=1560 [2022-10-16 10:43:53,584 INFO L87 Difference]: Start difference. First operand 136 states and 144 transitions. Second operand has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:55,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:55,656 INFO L93 Difference]: Finished difference Result 257 states and 269 transitions. [2022-10-16 10:43:55,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 10:43:55,657 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 10:43:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:55,659 INFO L225 Difference]: With dead ends: 257 [2022-10-16 10:43:55,659 INFO L226 Difference]: Without dead ends: 227 [2022-10-16 10:43:55,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=546, Invalid=2858, Unknown=18, NotChecked=0, Total=3422 [2022-10-16 10:43:55,662 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 432 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 445 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:55,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 379 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1058 Invalid, 0 Unknown, 445 Unchecked, 1.0s Time] [2022-10-16 10:43:55,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-10-16 10:43:55,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 162. [2022-10-16 10:43:55,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 152 states have (on average 1.125) internal successors, (171), 161 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:55,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2022-10-16 10:43:55,675 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 35 [2022-10-16 10:43:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:55,675 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2022-10-16 10:43:55,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:55,676 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2022-10-16 10:43:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:43:55,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:55,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:55,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:55,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 10:43:55,892 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:55,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:55,893 INFO L85 PathProgramCache]: Analyzing trace with hash 973042161, now seen corresponding path program 1 times [2022-10-16 10:43:55,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:55,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540656693] [2022-10-16 10:43:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:55,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:55,908 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:43:55,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813485802] [2022-10-16 10:43:55,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:55,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:55,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:55,910 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:55,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:43:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:55,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:43:55,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:43:56,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:43:56,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540656693] [2022-10-16 10:43:56,185 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:43:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813485802] [2022-10-16 10:43:56,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813485802] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:56,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:43:56,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:43:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387175914] [2022-10-16 10:43:56,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:56,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:43:56,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:56,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:43:56,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:43:56,189 INFO L87 Difference]: Start difference. First operand 162 states and 171 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:56,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:56,479 INFO L93 Difference]: Finished difference Result 191 states and 200 transitions. [2022-10-16 10:43:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:43:56,480 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 10:43:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:56,482 INFO L225 Difference]: With dead ends: 191 [2022-10-16 10:43:56,482 INFO L226 Difference]: Without dead ends: 154 [2022-10-16 10:43:56,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-10-16 10:43:56,483 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 66 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:56,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 209 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:56,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-10-16 10:43:56,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2022-10-16 10:43:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 143 states have (on average 1.1258741258741258) internal successors, (161), 152 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 161 transitions. [2022-10-16 10:43:56,495 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 161 transitions. Word has length 39 [2022-10-16 10:43:56,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:56,495 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 161 transitions. [2022-10-16 10:43:56,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:56,496 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 161 transitions. [2022-10-16 10:43:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:43:56,496 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:56,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:56,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:56,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:56,711 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:56,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash -63661210, now seen corresponding path program 1 times [2022-10-16 10:43:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:56,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113173575] [2022-10-16 10:43:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:56,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:43:56,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:56,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113173575] [2022-10-16 10:43:56,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113173575] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:56,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139006917] [2022-10-16 10:43:56,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:56,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:56,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:56,801 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:56,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:43:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:56,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:43:56,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:56,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:43:56,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:43:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:43:56,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139006917] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:43:56,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:43:56,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:43:56,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228264658] [2022-10-16 10:43:56,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:43:56,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:43:56,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:43:56,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:43:56,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:43:56,994 INFO L87 Difference]: Start difference. First operand 153 states and 161 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:57,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:43:57,227 INFO L93 Difference]: Finished difference Result 201 states and 213 transitions. [2022-10-16 10:43:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:43:57,227 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 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 40 [2022-10-16 10:43:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:43:57,229 INFO L225 Difference]: With dead ends: 201 [2022-10-16 10:43:57,229 INFO L226 Difference]: Without dead ends: 200 [2022-10-16 10:43:57,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:43:57,231 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 89 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:43:57,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 175 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:43:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-10-16 10:43:57,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 184. [2022-10-16 10:43:57,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 174 states have (on average 1.1781609195402298) internal successors, (205), 183 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:57,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 205 transitions. [2022-10-16 10:43:57,251 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 205 transitions. Word has length 40 [2022-10-16 10:43:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:43:57,252 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 205 transitions. [2022-10-16 10:43:57,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:43:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 205 transitions. [2022-10-16 10:43:57,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 10:43:57,253 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:43:57,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:43:57,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:43:57,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:57,467 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:43:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:43:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash -68155580, now seen corresponding path program 1 times [2022-10-16 10:43:57,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:43:57,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737320608] [2022-10-16 10:43:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:57,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:43:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:58,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:43:58,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737320608] [2022-10-16 10:43:58,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737320608] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:43:58,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212927975] [2022-10-16 10:43:58,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:43:58,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:43:58,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:43:58,788 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:43:58,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:43:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:43:58,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:43:58,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:43:58,878 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 10 treesize of output 8 [2022-10-16 10:43:58,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:43:59,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:43:59,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:43:59,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:43:59,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:43:59,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:43:59,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:43:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:43:59,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:44:10,609 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_85| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_85|)) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (v_ArrVal_349 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)))))) is different from false [2022-10-16 10:44:12,672 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:44:14,708 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int) (v_ArrVal_347 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_347) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:44:16,888 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_86| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_86|)) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int) (v_ArrVal_347 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_86| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_347) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |v_ULTIMATE.start_main_~i~0#1_86| 1)) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)))))) is different from false [2022-10-16 10:44:18,974 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_86| Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int) (v_ArrVal_347 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_86| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_86| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_347) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |v_ULTIMATE.start_main_~i~0#1_86| 1)) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)))) is different from false [2022-10-16 10:44:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 18 not checked. [2022-10-16 10:44:19,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212927975] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:44:19,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:44:19,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 17] total 46 [2022-10-16 10:44:19,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330488290] [2022-10-16 10:44:19,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:44:19,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-10-16 10:44:19,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:44:19,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-10-16 10:44:19,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1508, Unknown=7, NotChecked=420, Total=2162 [2022-10-16 10:44:19,322 INFO L87 Difference]: Start difference. First operand 184 states and 205 transitions. Second operand has 47 states, 46 states have (on average 2.760869565217391) internal successors, (127), 47 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:44:21,401 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (= |c_ULTIMATE.start_main_~i~0#1| 0) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_86| Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int) (v_ArrVal_347 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_86| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_86| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_347) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |v_ULTIMATE.start_main_~i~0#1_86| 1)) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)))) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 10:44:23,410 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_86| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_86|)) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int) (v_ArrVal_347 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_86| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_347) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |v_ULTIMATE.start_main_~i~0#1_86| 1)) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)))))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= |c_ULTIMATE.start_main_#t~post7#1| 0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 10:44:25,444 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse2 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (v_ArrVal_349 Int)) (or (not (<= (+ c_~N~0 1) v_ArrVal_350)) (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store .cse1 .cse2 v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int) (v_ArrVal_347 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse1 .cse2 v_ArrVal_347) (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))))) is different from false [2022-10-16 10:44:27,455 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (|v_ULTIMATE.start_main_~i~0#1_85| Int) (v_ArrVal_349 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)) (< |v_ULTIMATE.start_main_~i~0#1_85| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int)) (or (not (<= (+ c_~N~0 1) v_ArrVal_350)) (< 0 (+ v_ArrVal_350 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 9223372036854775809)))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 10:44:29,461 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_85| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_85|)) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int) (v_ArrVal_349 Int)) (or (< 0 (+ v_ArrVal_350 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_85| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_349)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (< v_ArrVal_350 (+ |v_ULTIMATE.start_main_~i~0#1_85| 2)))))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_350 Int)) (or (not (<= (+ c_~N~0 1) v_ArrVal_350)) (< 0 (+ v_ArrVal_350 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_350)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 9223372036854775809)))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_main_#t~post7#1|))) is different from false [2022-10-16 10:44:43,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:44:43,103 INFO L93 Difference]: Finished difference Result 213 states and 232 transitions. [2022-10-16 10:44:43,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 10:44:43,103 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.760869565217391) internal successors, (127), 47 states have internal predecessors, (127), 0 states have call successors, (0), 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 45 [2022-10-16 10:44:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:44:43,105 INFO L225 Difference]: With dead ends: 213 [2022-10-16 10:44:43,106 INFO L226 Difference]: Without dead ends: 185 [2022-10-16 10:44:43,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 42.3s TimeCoverageRelationStatistics Valid=426, Invalid=2570, Unknown=14, NotChecked=1150, Total=4160 [2022-10-16 10:44:43,109 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 140 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 693 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:44:43,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 368 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 730 Invalid, 0 Unknown, 693 Unchecked, 0.7s Time] [2022-10-16 10:44:43,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-10-16 10:44:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2022-10-16 10:44:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 173 states have (on average 1.1445086705202312) internal successors, (198), 181 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:44:43,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 198 transitions. [2022-10-16 10:44:43,121 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 198 transitions. Word has length 45 [2022-10-16 10:44:43,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:44:43,122 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 198 transitions. [2022-10-16 10:44:43,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.760869565217391) internal successors, (127), 47 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:44:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 198 transitions. [2022-10-16 10:44:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 10:44:43,123 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:44:43,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:44:43,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 10:44:43,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:44:43,337 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:44:43,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:44:43,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2112822874, now seen corresponding path program 1 times [2022-10-16 10:44:43,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:44:43,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277302164] [2022-10-16 10:44:43,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:44:43,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:44:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:44:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:44:44,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:44:44,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277302164] [2022-10-16 10:44:44,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277302164] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:44:44,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086524144] [2022-10-16 10:44:44,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:44:44,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:44:44,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:44:44,622 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:44:44,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 10:44:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:44:44,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 10:44:44,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:44:44,707 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 10 treesize of output 8 [2022-10-16 10:44:44,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:44:44,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:44:44,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:44:45,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:44:45,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:44:45,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 10:44:45,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:44:45,729 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:44:45,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:44:54,142 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int)) (or (< (+ v_ArrVal_386 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386)) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))) is different from false [2022-10-16 10:44:55,982 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int)) (or (< (+ v_ArrVal_386 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))) is different from false [2022-10-16 10:44:58,062 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_91|)) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int)) (or (< (+ v_ArrVal_386 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))))) is different from false [2022-10-16 10:45:00,105 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_91| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ v_ArrVal_386 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))) is different from false [2022-10-16 10:45:02,002 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int) (v_ArrVal_382 Int)) (or (< (+ v_ArrVal_386 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_382) (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< |v_ULTIMATE.start_main_~i~0#1_91| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 2147483647 v_ArrVal_386))) is different from false [2022-10-16 10:45:04,135 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int) (v_ArrVal_382 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_91| (+ |v_ULTIMATE.start_main_~i~0#1_92| 1)) (< (+ v_ArrVal_386 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_382) (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)))) is different from false [2022-10-16 10:45:06,217 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int) (v_ArrVal_382 Int) (|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_91| (+ |v_ULTIMATE.start_main_~i~0#1_92| 1)) (< (+ v_ArrVal_386 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_382) (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< |v_ULTIMATE.start_main_~i~0#1_92| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 2147483647 v_ArrVal_386))) is different from false [2022-10-16 10:45:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 22 not checked. [2022-10-16 10:45:06,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086524144] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:45:06,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:45:06,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 17] total 47 [2022-10-16 10:45:06,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592072197] [2022-10-16 10:45:06,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:45:06,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 10:45:06,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:45:06,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 10:45:06,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1422, Unknown=10, NotChecked=588, Total=2256 [2022-10-16 10:45:06,340 INFO L87 Difference]: Start difference. First operand 182 states and 198 transitions. Second operand has 48 states, 47 states have (on average 2.765957446808511) internal successors, (130), 48 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:45:07,928 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int) (v_ArrVal_382 Int) (|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_91| (+ |v_ULTIMATE.start_main_~i~0#1_92| 1)) (< (+ v_ArrVal_386 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_382) (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< |v_ULTIMATE.start_main_~i~0#1_92| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 2147483647 v_ArrVal_386))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 10:45:09,934 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int) (v_ArrVal_382 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_91| (+ |v_ULTIMATE.start_main_~i~0#1_92| 1)) (< (+ v_ArrVal_386 (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_382) (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)))) (= |c_ULTIMATE.start_main_#t~post7#1| 0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 10:45:11,540 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_91| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ v_ArrVal_386 (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:45:13,545 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (<= |c_ULTIMATE.start_main_#t~post7#1| 1) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_91| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_91|)) (forall ((|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_386 Int) (v_ArrVal_384 Int)) (or (< (+ v_ArrVal_386 (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_91| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_384)))) (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) |ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_386))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) 9223372036854775806) (< 2147483647 v_ArrVal_386))))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_main_#t~post7#1|))) is different from false [2022-10-16 10:45:15,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:45:15,333 INFO L93 Difference]: Finished difference Result 202 states and 218 transitions. [2022-10-16 10:45:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 10:45:15,334 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.765957446808511) internal successors, (130), 48 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-10-16 10:45:15,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:45:15,335 INFO L225 Difference]: With dead ends: 202 [2022-10-16 10:45:15,336 INFO L226 Difference]: Without dead ends: 201 [2022-10-16 10:45:15,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=441, Invalid=2559, Unknown=14, NotChecked=1276, Total=4290 [2022-10-16 10:45:15,338 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 166 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 754 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:45:15,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 455 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 868 Invalid, 0 Unknown, 754 Unchecked, 0.8s Time] [2022-10-16 10:45:15,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-16 10:45:15,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 165. [2022-10-16 10:45:15,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 164 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:45:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 180 transitions. [2022-10-16 10:45:15,349 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 180 transitions. Word has length 46 [2022-10-16 10:45:15,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:45:15,349 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 180 transitions. [2022-10-16 10:45:15,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.765957446808511) internal successors, (130), 48 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:45:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 180 transitions. [2022-10-16 10:45:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:45:15,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:45:15,351 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:45:15,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 10:45:15,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 10:45:15,560 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:45:15,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:45:15,561 INFO L85 PathProgramCache]: Analyzing trace with hash 368091469, now seen corresponding path program 1 times [2022-10-16 10:45:15,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:45:15,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199046765] [2022-10-16 10:45:15,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:45:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:45:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:45:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:45:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:45:15,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199046765] [2022-10-16 10:45:15,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199046765] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:45:15,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705147326] [2022-10-16 10:45:15,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:45:15,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:45:15,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:45:15,822 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:45:15,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 10:45:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:45:15,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:45:15,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:45:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:45:16,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:45:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:45:16,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705147326] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:45:16,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:45:16,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:45:16,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110129617] [2022-10-16 10:45:16,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:45:16,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:45:16,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:45:16,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:45:16,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:45:16,362 INFO L87 Difference]: Start difference. First operand 165 states and 180 transitions. Second operand has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 22 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:45:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:45:16,893 INFO L93 Difference]: Finished difference Result 282 states and 306 transitions. [2022-10-16 10:45:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:45:16,894 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 22 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 10:45:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:45:16,896 INFO L225 Difference]: With dead ends: 282 [2022-10-16 10:45:16,896 INFO L226 Difference]: Without dead ends: 215 [2022-10-16 10:45:16,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 78 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2022-10-16 10:45:16,897 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 259 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:45:16,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 208 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:45:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-10-16 10:45:16,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 187. [2022-10-16 10:45:16,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 178 states have (on average 1.1348314606741574) internal successors, (202), 186 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:45:16,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 202 transitions. [2022-10-16 10:45:16,911 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 202 transitions. Word has length 48 [2022-10-16 10:45:16,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:45:16,911 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 202 transitions. [2022-10-16 10:45:16,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 22 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:45:16,912 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 202 transitions. [2022-10-16 10:45:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 10:45:16,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:45:16,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:45:16,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 10:45:17,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:45:17,125 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:45:17,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:45:17,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1689721775, now seen corresponding path program 2 times [2022-10-16 10:45:17,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:45:17,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315797864] [2022-10-16 10:45:17,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:45:17,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:45:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:45:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:45:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:45:19,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315797864] [2022-10-16 10:45:19,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315797864] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:45:19,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862738504] [2022-10-16 10:45:19,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:45:19,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:45:19,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:45:19,750 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:45:19,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 10:45:19,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:45:19,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:45:19,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:45:19,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:45:19,847 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 10 treesize of output 8 [2022-10-16 10:45:19,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:45:20,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:45:20,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:45:20,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2022-10-16 10:45:20,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:45:20,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:45:20,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:45:20,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-10-16 10:45:21,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:45:21,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-10-16 10:45:22,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:45:22,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:45:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:45:22,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:45:22,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 62 [2022-10-16 10:45:22,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 24 [2022-10-16 10:45:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:45:22,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:11,727 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 3391 treesize of output 3373 [2022-10-16 10:46:11,802 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:46:11,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1638 treesize of output 1610 [2022-10-16 10:46:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:46:18,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862738504] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:18,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:18,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 24] total 68 [2022-10-16 10:46:18,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159618361] [2022-10-16 10:46:18,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:18,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-10-16 10:46:18,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:18,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-10-16 10:46:18,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=4324, Unknown=18, NotChecked=0, Total=4692 [2022-10-16 10:46:18,118 INFO L87 Difference]: Start difference. First operand 187 states and 202 transitions. Second operand has 69 states, 68 states have (on average 2.3676470588235294) internal successors, (161), 69 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:46:55,241 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 81 DAG size of output: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)