/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-nla/cohencu5-both-t.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:18:40,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:18:40,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:18:40,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:18:40,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:18:40,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:18:40,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:18:40,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:18:40,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:18:40,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:18:40,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:18:40,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:18:40,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:18:40,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:18:40,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:18:40,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:18:40,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:18:40,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:18:40,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:18:40,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:18:40,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:18:40,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:18:40,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:18:40,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:18:40,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:18:40,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:18:40,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:18:40,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:18:40,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:18:40,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:18:40,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:18:40,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:18:40,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:18:40,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:18:40,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:18:40,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:18:40,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:18:40,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:18:40,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:18:40,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:18:40,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:18:40,651 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:18:40,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:18:40,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:18:40,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:18:40,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:18:40,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:18:40,710 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:18:40,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:18:40,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:18:40,711 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:18:40,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:18:40,712 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:18:40,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:18:40,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:18:40,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:18:40,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:18:40,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:18:40,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:18:40,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:18:40,713 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:18:40,714 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:18:40,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:18:40,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:18:40,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:18:40,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:18:40,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:18:40,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:18:40,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:18:40,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:18:40,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:18:40,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:18:40,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:18:40,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:18:40,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:18:40,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:18:41,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:18:41,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:18:41,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:18:41,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:18:41,142 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:18:41,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/cohencu5-both-t.c [2022-10-16 17:18:41,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4bef050e/e2080837957d4d958623c07412361917/FLAGe0a33bf71 [2022-10-16 17:18:41,822 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:18:41,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/cohencu5-both-t.c [2022-10-16 17:18:41,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4bef050e/e2080837957d4d958623c07412361917/FLAGe0a33bf71 [2022-10-16 17:18:42,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4bef050e/e2080837957d4d958623c07412361917 [2022-10-16 17:18:42,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:18:42,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:18:42,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:18:42,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:18:42,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:18:42,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a942c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42, skipping insertion in model container [2022-10-16 17:18:42,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:18:42,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:18:42,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:18:42,390 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:18:42,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:18:42,422 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:18:42,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42 WrapperNode [2022-10-16 17:18:42,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:18:42,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:18:42,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:18:42,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:18:42,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,462 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-10-16 17:18:42,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:18:42,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:18:42,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:18:42,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:18:42,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,485 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:18:42,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:18:42,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:18:42,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:18:42,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (1/1) ... [2022-10-16 17:18:42,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:18:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:42,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:18:42,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:18:42,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:18:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:18:42,696 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:18:42,698 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:18:43,713 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:18:43,723 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:18:43,724 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:18:43,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:18:43 BoogieIcfgContainer [2022-10-16 17:18:43,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:18:43,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:18:43,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:18:43,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:18:43,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:18:42" (1/3) ... [2022-10-16 17:18:43,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f75dd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:18:43, skipping insertion in model container [2022-10-16 17:18:43,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:18:42" (2/3) ... [2022-10-16 17:18:43,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f75dd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:18:43, skipping insertion in model container [2022-10-16 17:18:43,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:18:43" (3/3) ... [2022-10-16 17:18:43,737 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu5-both-t.c [2022-10-16 17:18:43,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:18:43,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-16 17:18:43,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:18:43,835 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;@2d93997f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:18:43,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-10-16 17:18:43,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 54 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 17:18:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-16 17:18:43,849 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:43,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-16 17:18:43,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:43,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:43,858 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-10-16 17:18:43,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:43,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511506950] [2022-10-16 17:18:43,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:43,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:44,002 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:44,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783906778] [2022-10-16 17:18:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:44,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:44,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:44,007 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 17:18:44,040 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 17:18:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:44,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:18:44,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:44,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:44,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:44,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511506950] [2022-10-16 17:18:44,160 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:44,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783906778] [2022-10-16 17:18:44,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783906778] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:44,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:44,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:44,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143317986] [2022-10-16 17:18:44,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:44,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:44,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:44,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:44,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:44,228 INFO L87 Difference]: Start difference. First operand has 55 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 54 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:44,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:44,410 INFO L93 Difference]: Finished difference Result 107 states and 109 transitions. [2022-10-16 17:18:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:44,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-10-16 17:18:44,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:44,427 INFO L225 Difference]: With dead ends: 107 [2022-10-16 17:18:44,427 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 17:18:44,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:44,436 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 42 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:44,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 46 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:18:44,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 17:18:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 73. [2022-10-16 17:18:44,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.78) internal successors, (89), 72 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2022-10-16 17:18:44,490 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 3 [2022-10-16 17:18:44,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:44,490 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2022-10-16 17:18:44,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2022-10-16 17:18:44,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 17:18:44,491 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:44,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 17:18:44,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 17:18:44,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-16 17:18:44,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash 28696742, now seen corresponding path program 1 times [2022-10-16 17:18:44,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:44,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083118689] [2022-10-16 17:18:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:44,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:44,726 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:44,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051493386] [2022-10-16 17:18:44,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:44,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:44,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:44,730 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 17:18:44,738 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 17:18:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:44,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:18:44,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:44,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:44,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:44,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083118689] [2022-10-16 17:18:44,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:44,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051493386] [2022-10-16 17:18:44,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051493386] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:44,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:44,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:44,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134308834] [2022-10-16 17:18:44,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:44,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:44,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:44,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:44,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:44,776 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:44,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:44,958 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2022-10-16 17:18:44,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:44,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 17:18:44,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:44,961 INFO L225 Difference]: With dead ends: 88 [2022-10-16 17:18:44,961 INFO L226 Difference]: Without dead ends: 84 [2022-10-16 17:18:44,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:18:44,963 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:44,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 45 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:18:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-16 17:18:44,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2022-10-16 17:18:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.7) internal successors, (85), 72 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2022-10-16 17:18:44,977 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 5 [2022-10-16 17:18:44,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:44,977 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2022-10-16 17:18:44,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:44,978 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2022-10-16 17:18:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:18:44,978 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:44,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:18:45,020 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 17:18:45,193 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,SelfDestructingSolverStorable1 [2022-10-16 17:18:45,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:45,196 INFO L85 PathProgramCache]: Analyzing trace with hash 889599046, now seen corresponding path program 1 times [2022-10-16 17:18:45,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:45,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591809264] [2022-10-16 17:18:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:45,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:45,205 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:45,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807905900] [2022-10-16 17:18:45,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:45,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:45,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:45,211 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 17:18:45,229 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 17:18:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:45,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:18:45,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:45,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:45,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:45,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:45,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591809264] [2022-10-16 17:18:45,268 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:45,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807905900] [2022-10-16 17:18:45,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807905900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:45,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:45,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:45,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317922781] [2022-10-16 17:18:45,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:45,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:45,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:45,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:45,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:45,273 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:45,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:45,399 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2022-10-16 17:18:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:45,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:18:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:45,405 INFO L225 Difference]: With dead ends: 85 [2022-10-16 17:18:45,405 INFO L226 Difference]: Without dead ends: 84 [2022-10-16 17:18:45,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 17:18:45,407 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 28 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:45,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:18:45,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-16 17:18:45,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2022-10-16 17:18:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.68) internal successors, (84), 72 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 17:18:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-16 17:18:45,418 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 6 [2022-10-16 17:18:45,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:45,419 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-16 17:18:45,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-16 17:18:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:18:45,420 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:45,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:18:45,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 17:18:45,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:45,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1807766696, now seen corresponding path program 1 times [2022-10-16 17:18:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:45,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944596227] [2022-10-16 17:18:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:45,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:45,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086058432] [2022-10-16 17:18:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:45,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:45,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:45,647 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 17:18:45,664 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 17:18:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:45,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:18:45,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:45,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:45,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:45,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944596227] [2022-10-16 17:18:45,756 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:45,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086058432] [2022-10-16 17:18:45,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086058432] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:45,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:45,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:18:45,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140820251] [2022-10-16 17:18:45,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:45,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:18:45,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:45,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:18:45,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:18:45,759 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:45,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:45,928 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2022-10-16 17:18:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:18:45,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:18:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:45,930 INFO L225 Difference]: With dead ends: 84 [2022-10-16 17:18:45,930 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 17:18:45,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 17:18:45,932 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:45,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 53 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:18:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 17:18:45,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73. [2022-10-16 17:18:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.64) internal successors, (82), 72 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2022-10-16 17:18:45,942 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 7 [2022-10-16 17:18:45,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:45,943 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2022-10-16 17:18:45,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2022-10-16 17:18:45,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:18:45,944 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:45,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:18:45,985 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 17:18:46,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:46,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:46,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:46,162 INFO L85 PathProgramCache]: Analyzing trace with hash 885806252, now seen corresponding path program 1 times [2022-10-16 17:18:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:46,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171749521] [2022-10-16 17:18:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:46,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:46,172 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:46,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616136644] [2022-10-16 17:18:46,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:46,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:46,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:46,174 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 17:18:46,185 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 17:18:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:46,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:18:46,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:46,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:46,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:46,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171749521] [2022-10-16 17:18:46,348 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:46,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616136644] [2022-10-16 17:18:46,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616136644] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:46,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:46,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:18:46,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10896379] [2022-10-16 17:18:46,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:46,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:18:46,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:46,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:18:46,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:18:46,352 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:46,410 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-10-16 17:18:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:18:46,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 17:18:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:46,412 INFO L225 Difference]: With dead ends: 73 [2022-10-16 17:18:46,412 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 17:18:46,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 17:18:46,414 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 38 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:46,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 16 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:18:46,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 17:18:46,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2022-10-16 17:18:46,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.358974358974359) internal successors, (53), 52 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 17:18:46,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2022-10-16 17:18:46,421 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 11 [2022-10-16 17:18:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:46,421 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2022-10-16 17:18:46,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:46,422 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2022-10-16 17:18:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 17:18:46,423 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:46,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:18:46,459 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 17:18:46,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:46,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:46,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:46,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1743489872, now seen corresponding path program 1 times [2022-10-16 17:18:46,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:46,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391116506] [2022-10-16 17:18:46,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:46,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:46,651 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:46,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985722235] [2022-10-16 17:18:46,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:46,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:46,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:46,656 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 17:18:46,674 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 17:18:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:46,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:18:46,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:46,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:46,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:46,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391116506] [2022-10-16 17:18:46,887 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:46,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985722235] [2022-10-16 17:18:46,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985722235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:46,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:46,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:18:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510473158] [2022-10-16 17:18:46,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:46,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:18:46,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:18:46,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:18:46,890 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:47,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:47,020 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2022-10-16 17:18:47,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:18:47,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 17:18:47,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:47,022 INFO L225 Difference]: With dead ends: 75 [2022-10-16 17:18:47,022 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 17:18:47,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 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 17:18:47,024 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:47,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 23 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:18:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 17:18:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2022-10-16 17:18:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.392156862745098) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:47,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-10-16 17:18:47,033 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 15 [2022-10-16 17:18:47,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:47,033 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-10-16 17:18:47,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:47,034 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-10-16 17:18:47,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:18:47,034 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:47,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:18:47,071 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 17:18:47,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:47,249 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:47,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:47,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1786388880, now seen corresponding path program 1 times [2022-10-16 17:18:47,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:47,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783907144] [2022-10-16 17:18:47,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:47,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:47,262 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:47,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069704329] [2022-10-16 17:18:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:47,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:47,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:47,264 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 17:18:47,268 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 17:18:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:47,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:18:47,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:47,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:47,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:47,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783907144] [2022-10-16 17:18:47,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:47,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069704329] [2022-10-16 17:18:47,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069704329] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:47,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:47,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:18:47,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243320547] [2022-10-16 17:18:47,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:47,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:18:47,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:47,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:18:47,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:18:47,371 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:47,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:47,441 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-10-16 17:18:47,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:18:47,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 17:18:47,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:47,443 INFO L225 Difference]: With dead ends: 65 [2022-10-16 17:18:47,443 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 17:18:47,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 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 17:18:47,445 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 48 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:47,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 13 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:18:47,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 17:18:47,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-16 17:18:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 61 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2022-10-16 17:18:47,453 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 16 [2022-10-16 17:18:47,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:47,453 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2022-10-16 17:18:47,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:47,454 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2022-10-16 17:18:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 17:18:47,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:47,455 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 17:18:47,495 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 17:18:47,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:47,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:47,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:47,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1267202510, now seen corresponding path program 1 times [2022-10-16 17:18:47,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:47,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354690424] [2022-10-16 17:18:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:47,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:47,680 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:47,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323517137] [2022-10-16 17:18:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:47,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:47,682 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 17:18:47,687 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 17:18:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:47,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:18:47,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:47,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:47,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:47,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354690424] [2022-10-16 17:18:47,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:47,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323517137] [2022-10-16 17:18:47,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323517137] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:47,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:47,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574877594] [2022-10-16 17:18:47,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:47,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:47,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:47,753 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 17:18:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:47,763 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2022-10-16 17:18:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:47,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 17:18:47,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:47,764 INFO L225 Difference]: With dead ends: 63 [2022-10-16 17:18:47,764 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 17:18:47,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 17:18:47,766 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:47,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 68 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:18:47,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 17:18:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-16 17:18:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 61 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:47,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2022-10-16 17:18:47,772 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 18 [2022-10-16 17:18:47,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:47,773 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2022-10-16 17:18:47,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 17:18:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2022-10-16 17:18:47,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:18:47,774 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:47,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:18:47,809 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 17:18:47,987 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,SelfDestructingSolverStorable7 [2022-10-16 17:18:47,989 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:47,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:47,990 INFO L85 PathProgramCache]: Analyzing trace with hash -628572073, now seen corresponding path program 1 times [2022-10-16 17:18:47,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:47,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380804700] [2022-10-16 17:18:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:47,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:48,002 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:48,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418870956] [2022-10-16 17:18:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:48,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:48,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:48,004 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 17:18:48,021 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 17:18:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:48,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:18:48,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:48,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:48,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:48,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380804700] [2022-10-16 17:18:48,076 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:48,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418870956] [2022-10-16 17:18:48,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418870956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:48,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:48,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:48,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298731767] [2022-10-16 17:18:48,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:48,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:48,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:48,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:48,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:48,084 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:48,092 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-10-16 17:18:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:48,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 17:18:48,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:48,094 INFO L225 Difference]: With dead ends: 62 [2022-10-16 17:18:48,094 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 17:18:48,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 17:18:48,098 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:48,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 35 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:18:48,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 17:18:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 17:18:48,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 60 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 17:18:48,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2022-10-16 17:18:48,109 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 19 [2022-10-16 17:18:48,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:48,110 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2022-10-16 17:18:48,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,110 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2022-10-16 17:18:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 17:18:48,112 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:48,112 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] [2022-10-16 17:18:48,155 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 17:18:48,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:48,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:48,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:48,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1989102292, now seen corresponding path program 1 times [2022-10-16 17:18:48,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:48,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609694410] [2022-10-16 17:18:48,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:48,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:48,344 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:48,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599236906] [2022-10-16 17:18:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:48,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:48,347 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 17:18:48,367 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 17:18:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:48,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:18:48,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:48,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:48,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:48,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609694410] [2022-10-16 17:18:48,459 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:48,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599236906] [2022-10-16 17:18:48,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599236906] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:48,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:48,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:48,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157959856] [2022-10-16 17:18:48,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:48,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:48,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:48,462 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:48,497 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2022-10-16 17:18:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:48,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 17:18:48,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:48,498 INFO L225 Difference]: With dead ends: 63 [2022-10-16 17:18:48,498 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 17:18:48,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 17:18:48,499 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:48,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 37 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:18:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 17:18:48,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2022-10-16 17:18:48,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 60 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2022-10-16 17:18:48,505 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 20 [2022-10-16 17:18:48,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:48,505 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2022-10-16 17:18:48,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2022-10-16 17:18:48,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 17:18:48,506 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:48,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:18:48,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 17:18:48,719 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,SelfDestructingSolverStorable9 [2022-10-16 17:18:48,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:48,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:48,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1532628985, now seen corresponding path program 1 times [2022-10-16 17:18:48,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:48,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969300126] [2022-10-16 17:18:48,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:48,730 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:48,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473854032] [2022-10-16 17:18:48,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:48,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:48,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:48,732 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 17:18:48,736 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 17:18:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:48,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:18:48,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:48,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:48,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:48,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:48,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969300126] [2022-10-16 17:18:48,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:48,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473854032] [2022-10-16 17:18:48,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473854032] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:48,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:48,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:48,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721707448] [2022-10-16 17:18:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:48,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:48,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:48,838 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:48,876 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2022-10-16 17:18:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:48,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 17:18:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:48,877 INFO L225 Difference]: With dead ends: 63 [2022-10-16 17:18:48,877 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 17:18:48,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 17:18:48,879 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:48,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:18:48,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 17:18:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2022-10-16 17:18:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 60 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2022-10-16 17:18:48,883 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 21 [2022-10-16 17:18:48,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:48,884 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2022-10-16 17:18:48,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2022-10-16 17:18:48,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:18:48,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:48,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:18:48,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 17:18:49,098 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,SelfDestructingSolverStorable10 [2022-10-16 17:18:49,099 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:49,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:49,100 INFO L85 PathProgramCache]: Analyzing trace with hash 266858358, now seen corresponding path program 1 times [2022-10-16 17:18:49,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:49,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132112183] [2022-10-16 17:18:49,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:49,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:49,108 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489850983] [2022-10-16 17:18:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:49,110 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 17:18:49,132 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 17:18:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:49,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:18:49,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:49,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:18:49,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:49,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132112183] [2022-10-16 17:18:49,216 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:49,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489850983] [2022-10-16 17:18:49,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489850983] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:18:49,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:18:49,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:18:49,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805216262] [2022-10-16 17:18:49,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:18:49,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:18:49,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:18:49,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:18:49,218 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:49,264 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2022-10-16 17:18:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:18:49,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 17:18:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:49,265 INFO L225 Difference]: With dead ends: 62 [2022-10-16 17:18:49,265 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 17:18:49,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 17:18:49,266 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:49,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:18:49,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 17:18:49,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 17:18:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.196078431372549) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:49,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2022-10-16 17:18:49,271 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 22 [2022-10-16 17:18:49,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:49,271 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2022-10-16 17:18:49,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:49,272 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2022-10-16 17:18:49,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 17:18:49,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:49,273 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] [2022-10-16 17:18:49,311 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 17:18:49,487 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,SelfDestructingSolverStorable11 [2022-10-16 17:18:49,487 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:49,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:49,488 INFO L85 PathProgramCache]: Analyzing trace with hash 688528679, now seen corresponding path program 1 times [2022-10-16 17:18:49,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:49,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998603205] [2022-10-16 17:18:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:49,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:49,498 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:49,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238265393] [2022-10-16 17:18:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:49,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:49,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:49,500 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 17:18:49,501 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 17:18:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:49,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:18:49,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:49,603 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 17:18:49,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:18:49,674 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 17:18:49,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:49,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998603205] [2022-10-16 17:18:49,675 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:49,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238265393] [2022-10-16 17:18:49,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238265393] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:18:49,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:18:49,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:18:49,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333004430] [2022-10-16 17:18:49,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:18:49,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:18:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:49,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:18:49,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:18:49,677 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:49,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:49,798 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2022-10-16 17:18:49,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:18:49,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 17:18:49,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:49,799 INFO L225 Difference]: With dead ends: 132 [2022-10-16 17:18:49,800 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 17:18:49,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:18:49,801 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 127 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:49,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 67 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:18:49,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 17:18:49,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 113. [2022-10-16 17:18:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 112 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:49,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2022-10-16 17:18:49,808 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 28 [2022-10-16 17:18:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:49,808 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2022-10-16 17:18:49,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:49,809 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2022-10-16 17:18:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 17:18:49,810 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:49,810 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 17:18:49,843 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 17:18:50,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 17:18:50,025 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:50,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:50,025 INFO L85 PathProgramCache]: Analyzing trace with hash 251098217, now seen corresponding path program 1 times [2022-10-16 17:18:50,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:50,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123805010] [2022-10-16 17:18:50,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:50,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:50,037 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:50,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49531112] [2022-10-16 17:18:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:50,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:50,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:50,038 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 17:18:50,044 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 17:18:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:50,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:18:50,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:50,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:18:50,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:50,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:50,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123805010] [2022-10-16 17:18:50,221 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:50,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49531112] [2022-10-16 17:18:50,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49531112] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:18:50,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:18:50,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:18:50,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785279185] [2022-10-16 17:18:50,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:18:50,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:18:50,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:18:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:18:50,223 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:50,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:18:50,323 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2022-10-16 17:18:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:18:50,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 30 [2022-10-16 17:18:50,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:18:50,325 INFO L225 Difference]: With dead ends: 121 [2022-10-16 17:18:50,325 INFO L226 Difference]: Without dead ends: 117 [2022-10-16 17:18:50,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:18:50,326 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 110 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:18:50,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 43 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:18:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-16 17:18:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2022-10-16 17:18:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 103 states have (on average 1.203883495145631) internal successors, (124), 111 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:50,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2022-10-16 17:18:50,333 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 30 [2022-10-16 17:18:50,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:18:50,333 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2022-10-16 17:18:50,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:18:50,333 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2022-10-16 17:18:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:18:50,334 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:18:50,334 INFO L195 NwaCegarLoop]: trace histogram [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 17:18:50,370 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 17:18:50,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:50,547 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:18:50,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:18:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2064748365, now seen corresponding path program 1 times [2022-10-16 17:18:50,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:18:50,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666386648] [2022-10-16 17:18:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:50,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:18:50,558 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:18:50,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196978670] [2022-10-16 17:18:50,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:18:50,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:18:50,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:18:50,560 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 17:18:50,582 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 17:18:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:18:50,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:18:50,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:18:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:50,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:18:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:18:57,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:18:57,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666386648] [2022-10-16 17:18:57,531 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:18:57,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196978670] [2022-10-16 17:18:57,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196978670] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:18:57,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:18:57,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:18:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007283951] [2022-10-16 17:18:57,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:18:57,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:18:57,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:18:57,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:18:57,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=81, Unknown=3, NotChecked=0, Total=132 [2022-10-16 17:18:57,534 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 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 17:19:03,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:19:03,279 INFO L93 Difference]: Finished difference Result 118 states and 124 transitions. [2022-10-16 17:19:03,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:19:03,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 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) Word has length 40 [2022-10-16 17:19:03,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:19:03,281 INFO L225 Difference]: With dead ends: 118 [2022-10-16 17:19:03,281 INFO L226 Difference]: Without dead ends: 117 [2022-10-16 17:19:03,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=75, Invalid=132, Unknown=3, NotChecked=0, Total=210 [2022-10-16 17:19:03,282 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 235 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 104 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:19:03,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 31 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 184 Invalid, 0 Unknown, 104 Unchecked, 0.6s Time] [2022-10-16 17:19:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-16 17:19:03,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2022-10-16 17:19:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 103 states have (on average 1.1844660194174756) internal successors, (122), 111 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:03,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2022-10-16 17:19:03,288 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 40 [2022-10-16 17:19:03,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:19:03,289 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2022-10-16 17:19:03,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 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 17:19:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2022-10-16 17:19:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 17:19:03,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:19:03,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-10-16 17:19:03,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 17:19:03,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:19:03,505 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:19:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:19:03,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1603135311, now seen corresponding path program 1 times [2022-10-16 17:19:03,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:19:03,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463237418] [2022-10-16 17:19:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:03,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:19:03,516 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:19:03,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510044799] [2022-10-16 17:19:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:03,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:03,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:19:03,518 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 17:19:03,538 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 17:19:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:19:03,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:19:03,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:19:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:03,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:19:03,682 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:03,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:19:03,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463237418] [2022-10-16 17:19:03,683 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:19:03,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510044799] [2022-10-16 17:19:03,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510044799] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:19:03,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:19:03,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:19:03,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666856694] [2022-10-16 17:19:03,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:19:03,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:19:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:19:03,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:19:03,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:19:03,686 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:03,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:19:03,706 INFO L93 Difference]: Finished difference Result 139 states and 141 transitions. [2022-10-16 17:19:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:19:03,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 17:19:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:19:03,708 INFO L225 Difference]: With dead ends: 139 [2022-10-16 17:19:03,708 INFO L226 Difference]: Without dead ends: 138 [2022-10-16 17:19:03,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:19:03,709 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 31 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:19:03,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 157 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:19:03,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-10-16 17:19:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 127. [2022-10-16 17:19:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 118 states have (on average 1.1694915254237288) internal successors, (138), 126 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 17:19:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2022-10-16 17:19:03,716 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 43 [2022-10-16 17:19:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:19:03,716 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2022-10-16 17:19:03,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2022-10-16 17:19:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 17:19:03,718 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:19:03,718 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:19:03,752 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 17:19:03,933 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,SelfDestructingSolverStorable15 [2022-10-16 17:19:03,934 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:19:03,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:19:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1280223055, now seen corresponding path program 1 times [2022-10-16 17:19:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:19:03,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120490928] [2022-10-16 17:19:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:19:03,945 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:19:03,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041153631] [2022-10-16 17:19:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:03,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:03,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:19:03,947 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 17:19:03,954 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 17:19:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:19:03,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:19:03,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:19:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:04,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:19:04,290 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:04,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:19:04,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120490928] [2022-10-16 17:19:04,291 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:19:04,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041153631] [2022-10-16 17:19:04,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041153631] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:19:04,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:19:04,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 17:19:04,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562122873] [2022-10-16 17:19:04,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:19:04,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:19:04,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:19:04,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:19:04,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:19:04,294 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:19:04,499 INFO L93 Difference]: Finished difference Result 131 states and 138 transitions. [2022-10-16 17:19:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:19:04,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 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 17:19:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:19:04,500 INFO L225 Difference]: With dead ends: 131 [2022-10-16 17:19:04,501 INFO L226 Difference]: Without dead ends: 130 [2022-10-16 17:19:04,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:19:04,502 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 48 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:19:04,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 64 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:19:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-16 17:19:04,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-10-16 17:19:04,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 118 states have (on average 1.152542372881356) internal successors, (136), 126 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 136 transitions. [2022-10-16 17:19:04,508 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 136 transitions. Word has length 45 [2022-10-16 17:19:04,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:19:04,509 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 136 transitions. [2022-10-16 17:19:04,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 136 transitions. [2022-10-16 17:19:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 17:19:04,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:19:04,510 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:19:04,552 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 17:19:04,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 17:19:04,725 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:19:04,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:19:04,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1032208964, now seen corresponding path program 1 times [2022-10-16 17:19:04,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:19:04,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788888287] [2022-10-16 17:19:04,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:04,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:19:04,735 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:19:04,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447709449] [2022-10-16 17:19:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:04,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:04,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:19:04,736 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 17:19:04,755 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 17:19:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:19:04,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:19:04,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:19:04,976 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:04,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:19:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:05,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:19:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788888287] [2022-10-16 17:19:05,084 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:19:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447709449] [2022-10-16 17:19:05,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447709449] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:19:05,084 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:19:05,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 17:19:05,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342823350] [2022-10-16 17:19:05,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:19:05,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:19:05,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:19:05,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:19:05,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:19:05,086 INFO L87 Difference]: Start difference. First operand 127 states and 136 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:19:05,205 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2022-10-16 17:19:05,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:19:05,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 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 17:19:05,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:19:05,207 INFO L225 Difference]: With dead ends: 127 [2022-10-16 17:19:05,207 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 17:19:05,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:19:05,208 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 51 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:19:05,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 23 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:19:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 17:19:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-10-16 17:19:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 118 states have (on average 1.1271186440677967) internal successors, (133), 125 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 133 transitions. [2022-10-16 17:19:05,215 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 133 transitions. Word has length 46 [2022-10-16 17:19:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:19:05,215 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 133 transitions. [2022-10-16 17:19:05,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 133 transitions. [2022-10-16 17:19:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 17:19:05,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:19:05,217 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:19:05,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 17:19:05,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 17:19:05,430 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:19:05,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:19:05,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1436365609, now seen corresponding path program 1 times [2022-10-16 17:19:05,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:19:05,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056829132] [2022-10-16 17:19:05,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:05,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:19:05,442 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:19:05,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [897384689] [2022-10-16 17:19:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:05,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:05,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:19:05,444 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:19:05,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 17:19:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:19:05,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:19:05,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:19:05,586 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 17:19:05,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:19:05,660 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 17:19:05,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:19:05,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056829132] [2022-10-16 17:19:05,660 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:19:05,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897384689] [2022-10-16 17:19:05,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897384689] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:19:05,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:19:05,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:19:05,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623845897] [2022-10-16 17:19:05,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:19:05,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:19:05,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:19:05,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:19:05,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:19:05,663 INFO L87 Difference]: Start difference. First operand 126 states and 133 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:05,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:19:05,705 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2022-10-16 17:19:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:19:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 51 [2022-10-16 17:19:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:19:05,707 INFO L225 Difference]: With dead ends: 142 [2022-10-16 17:19:05,707 INFO L226 Difference]: Without dead ends: 141 [2022-10-16 17:19:05,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:19:05,708 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:19:05,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 132 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:19:05,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-10-16 17:19:05,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 134. [2022-10-16 17:19:05,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 126 states have (on average 1.119047619047619) internal successors, (141), 133 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:05,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 141 transitions. [2022-10-16 17:19:05,715 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 141 transitions. Word has length 51 [2022-10-16 17:19:05,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:19:05,715 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 141 transitions. [2022-10-16 17:19:05,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 141 transitions. [2022-10-16 17:19:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 17:19:05,716 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:19:05,717 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-10-16 17:19:05,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 17:19:05,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:05,933 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:19:05,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:19:05,934 INFO L85 PathProgramCache]: Analyzing trace with hash 254821292, now seen corresponding path program 1 times [2022-10-16 17:19:05,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:19:05,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339375361] [2022-10-16 17:19:05,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:05,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:19:05,944 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:19:05,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171241056] [2022-10-16 17:19:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:05,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:05,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:19:05,946 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:19:05,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 17:19:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:19:05,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:19:05,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:19:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:06,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:19:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:07,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:19:07,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339375361] [2022-10-16 17:19:07,015 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:19:07,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171241056] [2022-10-16 17:19:07,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171241056] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:19:07,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:19:07,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:19:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134784849] [2022-10-16 17:19:07,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:19:07,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:19:07,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:19:07,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:19:07,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:19:07,018 INFO L87 Difference]: Start difference. First operand 134 states and 141 transitions. Second operand has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:07,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:19:07,208 INFO L93 Difference]: Finished difference Result 148 states and 155 transitions. [2022-10-16 17:19:07,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:19:07,209 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 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 62 [2022-10-16 17:19:07,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:19:07,210 INFO L225 Difference]: With dead ends: 148 [2022-10-16 17:19:07,210 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 17:19:07,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=98, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:19:07,211 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 127 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 171 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:19:07,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 55 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 145 Invalid, 0 Unknown, 171 Unchecked, 0.2s Time] [2022-10-16 17:19:07,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 17:19:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2022-10-16 17:19:07,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 137 states have (on average 1.102189781021898) internal successors, (151), 144 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:07,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2022-10-16 17:19:07,226 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 62 [2022-10-16 17:19:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:19:07,227 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2022-10-16 17:19:07,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2022-10-16 17:19:07,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 17:19:07,231 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:19:07,231 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-10-16 17:19:07,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 17:19:07,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:07,446 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:19:07,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:19:07,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1607856375, now seen corresponding path program 2 times [2022-10-16 17:19:07,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:19:07,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419389089] [2022-10-16 17:19:07,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:07,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:19:07,459 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:19:07,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1199309672] [2022-10-16 17:19:07,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:19:07,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:07,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:19:07,461 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:19:07,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 17:19:07,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:19:07,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:19:07,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:19:07,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:19:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:07,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:19:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:07,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:19:07,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419389089] [2022-10-16 17:19:07,987 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:19:07,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199309672] [2022-10-16 17:19:07,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199309672] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:19:07,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:19:07,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-16 17:19:07,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327084677] [2022-10-16 17:19:07,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:19:07,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:19:07,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:19:07,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:19:07,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:19:07,990 INFO L87 Difference]: Start difference. First operand 145 states and 151 transitions. Second operand has 14 states, 13 states have (on average 12.23076923076923) internal successors, (159), 14 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:08,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:19:08,453 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2022-10-16 17:19:08,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:19:08,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.23076923076923) internal successors, (159), 14 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-16 17:19:08,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:19:08,456 INFO L225 Difference]: With dead ends: 204 [2022-10-16 17:19:08,456 INFO L226 Difference]: Without dead ends: 201 [2022-10-16 17:19:08,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=295, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:19:08,458 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 388 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:19:08,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 81 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:19:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-16 17:19:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 188. [2022-10-16 17:19:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 180 states have (on average 1.1166666666666667) internal successors, (201), 187 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 201 transitions. [2022-10-16 17:19:08,469 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 201 transitions. Word has length 80 [2022-10-16 17:19:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:19:08,470 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 201 transitions. [2022-10-16 17:19:08,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.23076923076923) internal successors, (159), 14 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:19:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 201 transitions. [2022-10-16 17:19:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 17:19:08,474 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:19:08,474 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-10-16 17:19:08,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 17:19:08,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:08,689 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:19:08,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:19:08,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1645757267, now seen corresponding path program 2 times [2022-10-16 17:19:08,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:19:08,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683226224] [2022-10-16 17:19:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:19:08,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:19:08,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:19:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536427324] [2022-10-16 17:19:08,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:19:08,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:19:08,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:19:08,706 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:19:08,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 17:19:08,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:19:08,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:19:08,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 17:19:08,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:19:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:09,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:19:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 112 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:19:59,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:19:59,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683226224] [2022-10-16 17:19:59,597 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:19:59,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536427324] [2022-10-16 17:19:59,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536427324] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:19:59,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:19:59,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2022-10-16 17:19:59,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209631048] [2022-10-16 17:19:59,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:19:59,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:19:59,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:19:59,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:19:59,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=354, Unknown=24, NotChecked=0, Total=552 [2022-10-16 17:19:59,600 INFO L87 Difference]: Start difference. First operand 188 states and 201 transitions. Second operand has 24 states, 23 states have (on average 7.782608695652174) internal successors, (179), 24 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:20:21,341 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:21:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:21:35,071 INFO L93 Difference]: Finished difference Result 203 states and 213 transitions. [2022-10-16 17:21:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 17:21:35,072 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.782608695652174) internal successors, (179), 24 states have internal predecessors, (179), 0 states have call successors, (0), 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 90 [2022-10-16 17:21:35,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:21:35,075 INFO L225 Difference]: With dead ends: 203 [2022-10-16 17:21:35,075 INFO L226 Difference]: Without dead ends: 202 [2022-10-16 17:21:35,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 144.2s TimeCoverageRelationStatistics Valid=389, Invalid=817, Unknown=54, NotChecked=0, Total=1260 [2022-10-16 17:21:35,077 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 643 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 529 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:21:35,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 97 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 730 Invalid, 0 Unknown, 529 Unchecked, 0.6s Time] [2022-10-16 17:21:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-16 17:21:35,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 198. [2022-10-16 17:21:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 190 states have (on average 1.1) internal successors, (209), 197 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 209 transitions. [2022-10-16 17:21:35,088 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 209 transitions. Word has length 90 [2022-10-16 17:21:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:21:35,088 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 209 transitions. [2022-10-16 17:21:35,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.782608695652174) internal successors, (179), 24 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:35,089 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 209 transitions. [2022-10-16 17:21:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 17:21:35,089 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:21:35,089 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-10-16 17:21:35,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 17:21:35,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:35,304 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:21:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:21:35,305 INFO L85 PathProgramCache]: Analyzing trace with hash 316811793, now seen corresponding path program 2 times [2022-10-16 17:21:35,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:21:35,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674902583] [2022-10-16 17:21:35,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:21:35,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:21:35,325 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:21:35,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117293826] [2022-10-16 17:21:35,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:21:35,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:35,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:21:35,327 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:21:35,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 17:21:35,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:21:35,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:21:35,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 17:21:35,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:21:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:35,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:21:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:36,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:21:36,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674902583] [2022-10-16 17:21:36,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:21:36,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117293826] [2022-10-16 17:21:36,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117293826] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:21:36,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:21:36,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2022-10-16 17:21:36,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937010181] [2022-10-16 17:21:36,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:21:36,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:21:36,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:21:36,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:21:36,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:21:36,044 INFO L87 Difference]: Start difference. First operand 198 states and 209 transitions. Second operand has 18 states, 17 states have (on average 11.117647058823529) internal successors, (189), 18 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:21:36,802 INFO L93 Difference]: Finished difference Result 214 states and 217 transitions. [2022-10-16 17:21:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:21:36,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 11.117647058823529) internal successors, (189), 18 states have internal predecessors, (189), 0 states have call successors, (0), 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 95 [2022-10-16 17:21:36,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:21:36,804 INFO L225 Difference]: With dead ends: 214 [2022-10-16 17:21:36,804 INFO L226 Difference]: Without dead ends: 213 [2022-10-16 17:21:36,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=429, Invalid=693, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 17:21:36,806 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 438 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:21:36,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 130 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:21:36,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-10-16 17:21:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 203. [2022-10-16 17:21:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 195 states have (on average 1.087179487179487) internal successors, (212), 202 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 212 transitions. [2022-10-16 17:21:36,815 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 212 transitions. Word has length 95 [2022-10-16 17:21:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:21:36,815 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 212 transitions. [2022-10-16 17:21:36,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 11.117647058823529) internal successors, (189), 18 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 212 transitions. [2022-10-16 17:21:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 17:21:36,817 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:21:36,817 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-10-16 17:21:36,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 17:21:37,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:37,033 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:21:37,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:21:37,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1146908516, now seen corresponding path program 2 times [2022-10-16 17:21:37,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:21:37,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358359810] [2022-10-16 17:21:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:21:37,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:21:37,045 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:21:37,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722515749] [2022-10-16 17:21:37,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:21:37,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:37,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:21:37,047 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:21:37,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 17:21:37,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:21:37,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:21:37,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 17:21:37,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:21:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:37,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:21:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:37,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:21:37,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358359810] [2022-10-16 17:21:37,479 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:21:37,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722515749] [2022-10-16 17:21:37,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722515749] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:21:37,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:21:37,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:21:37,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969380873] [2022-10-16 17:21:37,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:21:37,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:21:37,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:21:37,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:21:37,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:21:37,481 INFO L87 Difference]: Start difference. First operand 203 states and 212 transitions. Second operand has 12 states, 11 states have (on average 18.636363636363637) internal successors, (205), 12 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 17:21:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:21:37,925 INFO L93 Difference]: Finished difference Result 284 states and 289 transitions. [2022-10-16 17:21:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:21:37,926 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 18.636363636363637) internal successors, (205), 12 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) Word has length 103 [2022-10-16 17:21:37,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:21:37,927 INFO L225 Difference]: With dead ends: 284 [2022-10-16 17:21:37,927 INFO L226 Difference]: Without dead ends: 283 [2022-10-16 17:21:37,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:21:37,929 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 300 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:21:37,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 263 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:21:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-10-16 17:21:37,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 261. [2022-10-16 17:21:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 253 states have (on average 1.1185770750988142) internal successors, (283), 260 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2022-10-16 17:21:37,942 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 103 [2022-10-16 17:21:37,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:21:37,943 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2022-10-16 17:21:37,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 18.636363636363637) internal successors, (205), 12 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 17:21:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2022-10-16 17:21:37,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 17:21:37,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:21:37,945 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-10-16 17:21:37,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 17:21:38,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:38,159 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:21:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:21:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1859072882, now seen corresponding path program 2 times [2022-10-16 17:21:38,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:21:38,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185845308] [2022-10-16 17:21:38,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:21:38,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:21:38,173 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:21:38,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152917576] [2022-10-16 17:21:38,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:21:38,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:38,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:21:38,174 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:21:38,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 17:21:38,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:21:38,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:21:38,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:21:38,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:21:38,392 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:38,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:21:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:38,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:21:38,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185845308] [2022-10-16 17:21:38,586 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:21:38,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152917576] [2022-10-16 17:21:38,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152917576] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:21:38,587 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:21:38,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:21:38,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055862773] [2022-10-16 17:21:38,588 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:21:38,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:21:38,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:21:38,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:21:38,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:21:38,589 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand has 12 states, 11 states have (on average 21.363636363636363) internal successors, (235), 12 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:38,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:21:38,632 INFO L93 Difference]: Finished difference Result 297 states and 302 transitions. [2022-10-16 17:21:38,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:21:38,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 21.363636363636363) internal successors, (235), 12 states have internal predecessors, (235), 0 states have call successors, (0), 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 118 [2022-10-16 17:21:38,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:21:38,635 INFO L225 Difference]: With dead ends: 297 [2022-10-16 17:21:38,635 INFO L226 Difference]: Without dead ends: 296 [2022-10-16 17:21:38,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:21:38,636 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 82 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:21:38,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 309 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:21:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-10-16 17:21:38,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2022-10-16 17:21:38,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 268 states have (on average 1.1044776119402986) internal successors, (296), 275 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:38,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 296 transitions. [2022-10-16 17:21:38,650 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 296 transitions. Word has length 118 [2022-10-16 17:21:38,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:21:38,650 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 296 transitions. [2022-10-16 17:21:38,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 21.363636363636363) internal successors, (235), 12 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 296 transitions. [2022-10-16 17:21:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 17:21:38,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:21:38,655 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-10-16 17:21:38,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 17:21:38,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 17:21:38,858 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:21:38,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:21:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2129872378, now seen corresponding path program 2 times [2022-10-16 17:21:38,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:21:38,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539156878] [2022-10-16 17:21:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:21:38,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:21:38,870 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:21:38,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630653685] [2022-10-16 17:21:38,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:21:38,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:38,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:21:38,872 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:21:38,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 17:21:38,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:21:38,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:21:38,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:21:38,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:21:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:39,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:21:39,328 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:39,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:21:39,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539156878] [2022-10-16 17:21:39,329 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:21:39,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630653685] [2022-10-16 17:21:39,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630653685] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:21:39,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:21:39,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:21:39,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869199226] [2022-10-16 17:21:39,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:21:39,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:21:39,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:21:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:21:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:21:39,333 INFO L87 Difference]: Start difference. First operand 276 states and 296 transitions. Second operand has 12 states, 11 states have (on average 22.818181818181817) internal successors, (251), 12 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:39,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:21:39,439 INFO L93 Difference]: Finished difference Result 302 states and 307 transitions. [2022-10-16 17:21:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:21:39,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 22.818181818181817) internal successors, (251), 12 states have internal predecessors, (251), 0 states have call successors, (0), 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 126 [2022-10-16 17:21:39,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:21:39,444 INFO L225 Difference]: With dead ends: 302 [2022-10-16 17:21:39,444 INFO L226 Difference]: Without dead ends: 301 [2022-10-16 17:21:39,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:21:39,447 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 29 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:21:39,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 265 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:21:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-10-16 17:21:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 284. [2022-10-16 17:21:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 276 states have (on average 1.0905797101449275) internal successors, (301), 283 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 301 transitions. [2022-10-16 17:21:39,461 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 301 transitions. Word has length 126 [2022-10-16 17:21:39,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:21:39,462 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 301 transitions. [2022-10-16 17:21:39,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 22.818181818181817) internal successors, (251), 12 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 301 transitions. [2022-10-16 17:21:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-16 17:21:39,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:21:39,464 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1] [2022-10-16 17:21:39,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 17:21:39,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 17:21:39,678 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:21:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:21:39,679 INFO L85 PathProgramCache]: Analyzing trace with hash -848785172, now seen corresponding path program 2 times [2022-10-16 17:21:39,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:21:39,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245541647] [2022-10-16 17:21:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:21:39,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:21:39,689 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:21:39,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180289582] [2022-10-16 17:21:39,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:21:39,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:39,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:21:39,691 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:21:39,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 17:21:39,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:21:39,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:21:39,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:21:39,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:21:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:40,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:21:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:47,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:21:47,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245541647] [2022-10-16 17:21:47,545 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:21:47,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180289582] [2022-10-16 17:21:47,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180289582] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:21:47,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:21:47,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2022-10-16 17:21:47,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150015405] [2022-10-16 17:21:47,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:21:47,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 17:21:47,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:21:47,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 17:21:47,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=418, Unknown=2, NotChecked=0, Total=756 [2022-10-16 17:21:47,548 INFO L87 Difference]: Start difference. First operand 284 states and 301 transitions. Second operand has 28 states, 27 states have (on average 11.962962962962964) internal successors, (323), 28 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:47,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:21:47,978 INFO L93 Difference]: Finished difference Result 351 states and 381 transitions. [2022-10-16 17:21:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 17:21:47,979 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 11.962962962962964) internal successors, (323), 28 states have internal predecessors, (323), 0 states have call successors, (0), 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 162 [2022-10-16 17:21:47,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:21:47,981 INFO L225 Difference]: With dead ends: 351 [2022-10-16 17:21:47,981 INFO L226 Difference]: Without dead ends: 349 [2022-10-16 17:21:47,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=504, Invalid=616, Unknown=2, NotChecked=0, Total=1122 [2022-10-16 17:21:47,983 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 455 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 829 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:21:47,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 117 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 298 Invalid, 0 Unknown, 829 Unchecked, 0.3s Time] [2022-10-16 17:21:47,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-10-16 17:21:47,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 345. [2022-10-16 17:21:47,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 337 states have (on average 1.1068249258160237) internal successors, (373), 344 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 373 transitions. [2022-10-16 17:21:47,998 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 373 transitions. Word has length 162 [2022-10-16 17:21:47,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:21:47,999 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 373 transitions. [2022-10-16 17:21:47,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 11.962962962962964) internal successors, (323), 28 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 373 transitions. [2022-10-16 17:21:48,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-10-16 17:21:48,001 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:21:48,001 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2022-10-16 17:21:48,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-10-16 17:21:48,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 17:21:48,216 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:21:48,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:21:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -362705847, now seen corresponding path program 3 times [2022-10-16 17:21:48,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:21:48,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965805016] [2022-10-16 17:21:48,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:21:48,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:21:48,234 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:21:48,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380273578] [2022-10-16 17:21:48,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:21:48,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:48,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:21:48,236 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:21:48,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 17:21:48,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-16 17:21:48,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:21:48,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 17:21:48,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:21:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 546 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:49,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:21:49,756 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 546 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:49,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:21:49,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965805016] [2022-10-16 17:21:49,756 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:21:49,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380273578] [2022-10-16 17:21:49,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380273578] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:21:49,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:21:49,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2022-10-16 17:21:49,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323645989] [2022-10-16 17:21:49,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:21:49,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 17:21:49,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:21:49,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 17:21:49,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=554, Unknown=0, NotChecked=0, Total=870 [2022-10-16 17:21:49,759 INFO L87 Difference]: Start difference. First operand 345 states and 373 transitions. Second operand has 30 states, 29 states have (on average 12.379310344827585) internal successors, (359), 30 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:21:51,533 INFO L93 Difference]: Finished difference Result 418 states and 431 transitions. [2022-10-16 17:21:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 17:21:51,533 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 12.379310344827585) internal successors, (359), 30 states have internal predecessors, (359), 0 states have call successors, (0), 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 180 [2022-10-16 17:21:51,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:21:51,536 INFO L225 Difference]: With dead ends: 418 [2022-10-16 17:21:51,536 INFO L226 Difference]: Without dead ends: 415 [2022-10-16 17:21:51,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1116, Invalid=1640, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 17:21:51,538 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1437 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:21:51,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 169 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 17:21:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-10-16 17:21:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 388. [2022-10-16 17:21:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 380 states have (on average 1.0921052631578947) internal successors, (415), 387 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 415 transitions. [2022-10-16 17:21:51,554 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 415 transitions. Word has length 180 [2022-10-16 17:21:51,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:21:51,555 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 415 transitions. [2022-10-16 17:21:51,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 12.379310344827585) internal successors, (359), 30 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:21:51,555 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 415 transitions. [2022-10-16 17:21:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-10-16 17:21:51,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:21:51,558 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2022-10-16 17:21:51,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 17:21:51,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 17:21:51,774 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 17:21:51,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:21:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2013540499, now seen corresponding path program 3 times [2022-10-16 17:21:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:21:51,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325513117] [2022-10-16 17:21:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:21:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:21:51,790 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:21:51,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206799951] [2022-10-16 17:21:51,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:21:51,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:21:51,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:21:51,792 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:21:51,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 17:21:51,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-16 17:21:51,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:21:51,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 17:21:51,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:21:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:21:53,200 INFO L328 TraceCheckSpWp]: Computing backward predicates...