/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/memsafety/lockfree-3.3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:47:08,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:47:08,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:47:08,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:47:08,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:47:08,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:47:08,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:47:08,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:47:08,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:47:08,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:47:08,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:47:08,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:47:08,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:47:08,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:47:08,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:47:08,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:47:08,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:47:08,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:47:08,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:47:08,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:47:08,305 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 14:47:08,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:47:08,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:47:08,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:47:08,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:47:08,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:47:08,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:47:08,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:47:08,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:47:08,369 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:47:08,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:47:08,370 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:47:08,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:47:08,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:47:08,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:47:08,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:47:08,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:47:08,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:47:08,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:47:08,372 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:47:08,372 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:47:08,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:47:08,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:47:08,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:47:08,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:47:08,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:47:08,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:47:08,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:47:08,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:47:08,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:47:08,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:47:08,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:47:08,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:47:08,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:47:08,375 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:47:08,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:47:08,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:47:08,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:47:08,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:47:08,799 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:47:08,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.3.i [2022-10-16 14:47:08,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0c33fc2/9cbc16ee08464326ae7325a503f2cacf/FLAG1e63766a4 [2022-10-16 14:47:09,533 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:47:09,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.3.i [2022-10-16 14:47:09,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0c33fc2/9cbc16ee08464326ae7325a503f2cacf/FLAG1e63766a4 [2022-10-16 14:47:09,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0c33fc2/9cbc16ee08464326ae7325a503f2cacf [2022-10-16 14:47:09,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:47:09,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:47:09,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:47:09,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:47:09,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:47:09,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ab369d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09, skipping insertion in model container [2022-10-16 14:47:09,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:47:09,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:47:10,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:47:10,379 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:47:10,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:47:10,483 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:47:10,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10 WrapperNode [2022-10-16 14:47:10,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:47:10,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:47:10,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:47:10,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:47:10,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,567 INFO L138 Inliner]: procedures = 125, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 126 [2022-10-16 14:47:10,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:47:10,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:47:10,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:47:10,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:47:10,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,644 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:47:10,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:47:10,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:47:10,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:47:10,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (1/1) ... [2022-10-16 14:47:10,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:47:10,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:10,703 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 14:47:10,709 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 14:47:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:47:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:47:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:47:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:47:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:47:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:47:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:47:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:47:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:47:10,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:47:11,016 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:47:11,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:47:11,384 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:47:11,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:47:11,399 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:47:11,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:11 BoogieIcfgContainer [2022-10-16 14:47:11,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:47:11,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:47:11,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:47:11,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:47:11,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:47:09" (1/3) ... [2022-10-16 14:47:11,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237d67f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:11, skipping insertion in model container [2022-10-16 14:47:11,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10" (2/3) ... [2022-10-16 14:47:11,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237d67f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:11, skipping insertion in model container [2022-10-16 14:47:11,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:11" (3/3) ... [2022-10-16 14:47:11,411 INFO L112 eAbstractionObserver]: Analyzing ICFG lockfree-3.3.i [2022-10-16 14:47:11,433 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:47:11,433 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:47:11,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:47:11,504 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;@565c4b24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:47:11,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:47:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 32 states have (on average 1.75) internal successors, (56), 36 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 14:47:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:11,521 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:11,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:11,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:11,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:11,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850637, now seen corresponding path program 1 times [2022-10-16 14:47:11,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:11,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085713015] [2022-10-16 14:47:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:11,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:11,955 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 14:47:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085713015] [2022-10-16 14:47:11,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085713015] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:11,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:11,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:47:11,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369820531] [2022-10-16 14:47:11,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:11,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:11,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:12,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:12,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:12,012 INFO L87 Difference]: Start difference. First operand has 37 states, 32 states have (on average 1.75) internal successors, (56), 36 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 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:12,103 INFO L93 Difference]: Finished difference Result 98 states and 148 transitions. [2022-10-16 14:47:12,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:47:12,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:47:12,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:12,122 INFO L225 Difference]: With dead ends: 98 [2022-10-16 14:47:12,122 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 14:47:12,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:12,132 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 31 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:12,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 133 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:12,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 14:47:12,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-10-16 14:47:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.697674418604651) internal successors, (73), 46 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 73 transitions. [2022-10-16 14:47:12,179 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 73 transitions. Word has length 7 [2022-10-16 14:47:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:12,180 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 73 transitions. [2022-10-16 14:47:12,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2022-10-16 14:47:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:12,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:12,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:12,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:47:12,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:12,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:12,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910219, now seen corresponding path program 1 times [2022-10-16 14:47:12,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:12,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096798801] [2022-10-16 14:47:12,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,294 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 14:47:12,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:12,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096798801] [2022-10-16 14:47:12,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096798801] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:12,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:12,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:12,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830178509] [2022-10-16 14:47:12,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:12,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:12,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:12,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:12,299 INFO L87 Difference]: Start difference. First operand 47 states and 73 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:12,398 INFO L93 Difference]: Finished difference Result 138 states and 210 transitions. [2022-10-16 14:47:12,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:47:12,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:47:12,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:12,402 INFO L225 Difference]: With dead ends: 138 [2022-10-16 14:47:12,402 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 14:47:12,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:12,405 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 67 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:12,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 169 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 14:47:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 72. [2022-10-16 14:47:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 68 states have (on average 1.6176470588235294) internal successors, (110), 71 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 110 transitions. [2022-10-16 14:47:12,425 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 110 transitions. Word has length 7 [2022-10-16 14:47:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:12,426 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 110 transitions. [2022-10-16 14:47:12,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions. [2022-10-16 14:47:12,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:12,427 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:12,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:12,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:47:12,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:12,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:12,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908747, now seen corresponding path program 1 times [2022-10-16 14:47:12,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:12,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486472839] [2022-10-16 14:47:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,547 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 14:47:12,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:12,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486472839] [2022-10-16 14:47:12,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486472839] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:12,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:12,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:12,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217393676] [2022-10-16 14:47:12,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:12,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:12,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:12,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:12,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:12,551 INFO L87 Difference]: Start difference. First operand 72 states and 110 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:12,692 INFO L93 Difference]: Finished difference Result 172 states and 259 transitions. [2022-10-16 14:47:12,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:47:12,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:47:12,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:12,700 INFO L225 Difference]: With dead ends: 172 [2022-10-16 14:47:12,700 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 14:47:12,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:12,702 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 67 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:12,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 163 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:12,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 14:47:12,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 100. [2022-10-16 14:47:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.5729166666666667) internal successors, (151), 99 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 14:47:12,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 151 transitions. [2022-10-16 14:47:12,751 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 151 transitions. Word has length 7 [2022-10-16 14:47:12,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:12,752 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 151 transitions. [2022-10-16 14:47:12,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,753 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 151 transitions. [2022-10-16 14:47:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:47:12,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:12,755 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:12,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:47:12,756 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:12,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:12,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1099090899, now seen corresponding path program 1 times [2022-10-16 14:47:12,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:12,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178589552] [2022-10-16 14:47:12,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:12,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:12,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178589552] [2022-10-16 14:47:12,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178589552] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:12,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272569781] [2022-10-16 14:47:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:12,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:12,987 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 14:47:13,003 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 14:47:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:13,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:13,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:13,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:13,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272569781] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:13,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:13,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:47:13,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231373074] [2022-10-16 14:47:13,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:13,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:47:13,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:47:13,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:13,278 INFO L87 Difference]: Start difference. First operand 100 states and 151 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:13,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:13,579 INFO L93 Difference]: Finished difference Result 534 states and 792 transitions. [2022-10-16 14:47:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:47:13,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 14:47:13,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:13,585 INFO L225 Difference]: With dead ends: 534 [2022-10-16 14:47:13,586 INFO L226 Difference]: Without dead ends: 533 [2022-10-16 14:47:13,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=400, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:47:13,589 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 560 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:13,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 562 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:13,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-10-16 14:47:13,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 274. [2022-10-16 14:47:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 270 states have (on average 1.614814814814815) internal successors, (436), 273 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 436 transitions. [2022-10-16 14:47:13,632 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 436 transitions. Word has length 15 [2022-10-16 14:47:13,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:13,633 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 436 transitions. [2022-10-16 14:47:13,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:13,634 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 436 transitions. [2022-10-16 14:47:13,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:47:13,635 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:13,635 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:13,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:47:13,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:13,849 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:13,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1191869186, now seen corresponding path program 1 times [2022-10-16 14:47:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:13,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707759390] [2022-10-16 14:47:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:14,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:14,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707759390] [2022-10-16 14:47:14,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707759390] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:14,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344848489] [2022-10-16 14:47:14,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:14,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:14,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:14,026 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 14:47:14,033 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 14:47:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:14,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:14,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:14,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:14,212 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:14,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344848489] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:14,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:14,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:47:14,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131557141] [2022-10-16 14:47:14,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:14,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:47:14,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:14,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:47:14,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:14,216 INFO L87 Difference]: Start difference. First operand 274 states and 436 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:14,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:14,615 INFO L93 Difference]: Finished difference Result 1447 states and 2298 transitions. [2022-10-16 14:47:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:47:14,617 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 14:47:14,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:14,627 INFO L225 Difference]: With dead ends: 1447 [2022-10-16 14:47:14,627 INFO L226 Difference]: Without dead ends: 1446 [2022-10-16 14:47:14,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=234, Invalid=468, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:47:14,633 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 608 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:14,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 539 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-10-16 14:47:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 632. [2022-10-16 14:47:14,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 628 states have (on average 1.6480891719745223) internal successors, (1035), 631 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:14,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1035 transitions. [2022-10-16 14:47:14,721 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1035 transitions. Word has length 15 [2022-10-16 14:47:14,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:14,722 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 1035 transitions. [2022-10-16 14:47:14,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1035 transitions. [2022-10-16 14:47:14,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:47:14,724 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:14,724 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:14,762 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 14:47:14,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:14,941 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:14,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:14,942 INFO L85 PathProgramCache]: Analyzing trace with hash 287920600, now seen corresponding path program 1 times [2022-10-16 14:47:14,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:14,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194952958] [2022-10-16 14:47:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:14,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:15,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:15,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194952958] [2022-10-16 14:47:15,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194952958] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:15,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484083857] [2022-10-16 14:47:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:15,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:15,047 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 14:47:15,056 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 14:47:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:15,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:15,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:15,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:47:15,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484083857] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:15,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:47:15,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 14:47:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005853159] [2022-10-16 14:47:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:15,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:15,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:15,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:47:15,186 INFO L87 Difference]: Start difference. First operand 632 states and 1035 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 14:47:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:15,345 INFO L93 Difference]: Finished difference Result 1092 states and 1743 transitions. [2022-10-16 14:47:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:47:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 14:47:15,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:15,352 INFO L225 Difference]: With dead ends: 1092 [2022-10-16 14:47:15,353 INFO L226 Difference]: Without dead ends: 1091 [2022-10-16 14:47:15,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:15,360 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 219 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:15,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 295 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:15,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-10-16 14:47:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 631. [2022-10-16 14:47:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 628 states have (on average 1.6194267515923566) internal successors, (1017), 630 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:15,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1017 transitions. [2022-10-16 14:47:15,417 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1017 transitions. Word has length 16 [2022-10-16 14:47:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:15,418 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 1017 transitions. [2022-10-16 14:47:15,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 14:47:15,418 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1017 transitions. [2022-10-16 14:47:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:47:15,425 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:15,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:15,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:47:15,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:15,641 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:15,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:15,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1706760953, now seen corresponding path program 1 times [2022-10-16 14:47:15,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:15,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491356972] [2022-10-16 14:47:15,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:15,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:15,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491356972] [2022-10-16 14:47:15,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491356972] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:15,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970029703] [2022-10-16 14:47:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:15,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:15,721 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 14:47:15,744 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 14:47:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:15,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:15,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:47:15,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970029703] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:15,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:47:15,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 14:47:15,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110402952] [2022-10-16 14:47:15,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:15,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:15,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:15,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:47:15,834 INFO L87 Difference]: Start difference. First operand 631 states and 1017 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 14:47:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:15,999 INFO L93 Difference]: Finished difference Result 1128 states and 1782 transitions. [2022-10-16 14:47:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:47:16,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 14:47:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:16,006 INFO L225 Difference]: With dead ends: 1128 [2022-10-16 14:47:16,007 INFO L226 Difference]: Without dead ends: 1127 [2022-10-16 14:47:16,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:16,009 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 228 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:16,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 246 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2022-10-16 14:47:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 630. [2022-10-16 14:47:16,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 628 states have (on average 1.5955414012738853) internal successors, (1002), 629 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:16,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1002 transitions. [2022-10-16 14:47:16,085 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1002 transitions. Word has length 16 [2022-10-16 14:47:16,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:16,085 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 1002 transitions. [2022-10-16 14:47:16,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 14:47:16,085 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1002 transitions. [2022-10-16 14:47:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 14:47:16,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:16,089 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:16,125 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 14:47:16,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:16,305 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:16,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1573489711, now seen corresponding path program 1 times [2022-10-16 14:47:16,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:16,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102481934] [2022-10-16 14:47:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:16,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:47:16,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:16,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102481934] [2022-10-16 14:47:16,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102481934] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:16,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:16,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:16,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676600199] [2022-10-16 14:47:16,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:16,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:47:16,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:47:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:47:16,396 INFO L87 Difference]: Start difference. First operand 630 states and 1002 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:16,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:16,499 INFO L93 Difference]: Finished difference Result 1754 states and 2802 transitions. [2022-10-16 14:47:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:47:16,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 14:47:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:16,507 INFO L225 Difference]: With dead ends: 1754 [2022-10-16 14:47:16,507 INFO L226 Difference]: Without dead ends: 1192 [2022-10-16 14:47:16,511 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 14:47:16,512 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 29 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:16,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 75 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-10-16 14:47:16,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1190. [2022-10-16 14:47:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 1188 states have (on average 1.5841750841750841) internal successors, (1882), 1189 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1882 transitions. [2022-10-16 14:47:16,613 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1882 transitions. Word has length 36 [2022-10-16 14:47:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:16,613 INFO L495 AbstractCegarLoop]: Abstraction has 1190 states and 1882 transitions. [2022-10-16 14:47:16,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1882 transitions. [2022-10-16 14:47:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:47:16,616 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:16,616 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2022-10-16 14:47:16,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:47:16,617 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1709538195, now seen corresponding path program 2 times [2022-10-16 14:47:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:16,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688609724] [2022-10-16 14:47:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:16,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 14:47:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:16,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688609724] [2022-10-16 14:47:16,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688609724] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:16,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:16,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:47:16,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387957304] [2022-10-16 14:47:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:16,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:47:16,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:16,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:47:16,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:16,716 INFO L87 Difference]: Start difference. First operand 1190 states and 1882 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 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 14:47:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:17,062 INFO L93 Difference]: Finished difference Result 3299 states and 5129 transitions. [2022-10-16 14:47:17,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:47:17,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 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 39 [2022-10-16 14:47:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:17,082 INFO L225 Difference]: With dead ends: 3299 [2022-10-16 14:47:17,082 INFO L226 Difference]: Without dead ends: 3298 [2022-10-16 14:47:17,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:47:17,085 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 123 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:17,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 123 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:17,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2022-10-16 14:47:17,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 1851. [2022-10-16 14:47:17,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1849 states have (on average 1.5803136830719309) internal successors, (2922), 1850 states have internal predecessors, (2922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2922 transitions. [2022-10-16 14:47:17,277 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2922 transitions. Word has length 39 [2022-10-16 14:47:17,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:17,278 INFO L495 AbstractCegarLoop]: Abstraction has 1851 states and 2922 transitions. [2022-10-16 14:47:17,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 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 14:47:17,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2922 transitions. [2022-10-16 14:47:17,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:47:17,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:17,282 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 14:47:17,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:47:17,282 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:17,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:17,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1373112855, now seen corresponding path program 2 times [2022-10-16 14:47:17,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:17,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293069068] [2022-10-16 14:47:17,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:17,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 14:47:17,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:17,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293069068] [2022-10-16 14:47:17,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293069068] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:17,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:17,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:47:17,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138078623] [2022-10-16 14:47:17,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:17,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:47:17,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:47:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:17,436 INFO L87 Difference]: Start difference. First operand 1851 states and 2922 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 14:47:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:17,841 INFO L93 Difference]: Finished difference Result 4967 states and 7778 transitions. [2022-10-16 14:47:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:47:17,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 39 [2022-10-16 14:47:17,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:17,869 INFO L225 Difference]: With dead ends: 4967 [2022-10-16 14:47:17,870 INFO L226 Difference]: Without dead ends: 4966 [2022-10-16 14:47:17,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:47:17,873 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 94 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:17,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 147 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4966 states. [2022-10-16 14:47:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4966 to 2873. [2022-10-16 14:47:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2871 states have (on average 1.5862068965517242) internal successors, (4554), 2872 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:18,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4554 transitions. [2022-10-16 14:47:18,115 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4554 transitions. Word has length 39 [2022-10-16 14:47:18,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:18,115 INFO L495 AbstractCegarLoop]: Abstraction has 2873 states and 4554 transitions. [2022-10-16 14:47:18,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 14:47:18,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4554 transitions. [2022-10-16 14:47:18,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 14:47:18,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:18,120 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:18,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:47:18,120 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:18,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:18,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2129611174, now seen corresponding path program 1 times [2022-10-16 14:47:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:18,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379468960] [2022-10-16 14:47:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 14:47:18,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:18,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379468960] [2022-10-16 14:47:18,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379468960] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:18,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:18,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:47:18,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646820919] [2022-10-16 14:47:18,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:18,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:18,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:18,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:18,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:47:18,281 INFO L87 Difference]: Start difference. First operand 2873 states and 4554 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 14:47:19,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:19,066 INFO L93 Difference]: Finished difference Result 8492 states and 13346 transitions. [2022-10-16 14:47:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:47:19,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 40 [2022-10-16 14:47:19,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:19,114 INFO L225 Difference]: With dead ends: 8492 [2022-10-16 14:47:19,114 INFO L226 Difference]: Without dead ends: 8491 [2022-10-16 14:47:19,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:19,118 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 271 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:19,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 182 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:19,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2022-10-16 14:47:19,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 3895. [2022-10-16 14:47:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3895 states, 3893 states have (on average 1.589005908040072) internal successors, (6186), 3894 states have internal predecessors, (6186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 6186 transitions. [2022-10-16 14:47:19,533 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 6186 transitions. Word has length 40 [2022-10-16 14:47:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:19,533 INFO L495 AbstractCegarLoop]: Abstraction has 3895 states and 6186 transitions. [2022-10-16 14:47:19,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 14:47:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 6186 transitions. [2022-10-16 14:47:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:47:19,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:19,538 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:19,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:47:19,539 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:19,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash -634998150, now seen corresponding path program 1 times [2022-10-16 14:47:19,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:19,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441576856] [2022-10-16 14:47:19,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:19,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 23 proven. 23 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:47:19,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:19,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441576856] [2022-10-16 14:47:19,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441576856] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:19,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686632369] [2022-10-16 14:47:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:19,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:19,639 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 14:47:19,656 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 14:47:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:19,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:47:19,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:19,870 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:19,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:20,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686632369] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:20,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:20,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 10, 10] total 23 [2022-10-16 14:47:20,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111110694] [2022-10-16 14:47:20,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:20,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:47:20,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:20,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:47:20,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:47:20,059 INFO L87 Difference]: Start difference. First operand 3895 states and 6186 transitions. Second operand has 24 states, 24 states have (on average 4.541666666666667) internal successors, (109), 23 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:26,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:26,769 INFO L93 Difference]: Finished difference Result 44108 states and 69216 transitions. [2022-10-16 14:47:26,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-10-16 14:47:26,770 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.541666666666667) internal successors, (109), 23 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 14:47:26,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:26,903 INFO L225 Difference]: With dead ends: 44108 [2022-10-16 14:47:26,903 INFO L226 Difference]: Without dead ends: 40215 [2022-10-16 14:47:26,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6575 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4317, Invalid=12713, Unknown=0, NotChecked=0, Total=17030 [2022-10-16 14:47:26,930 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 7804 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7804 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:26,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7804 Valid, 1089 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:47:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40215 states. [2022-10-16 14:47:29,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40215 to 24048. [2022-10-16 14:47:29,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24048 states, 24046 states have (on average 1.5790568077850786) internal successors, (37970), 24047 states have internal predecessors, (37970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:29,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24048 states to 24048 states and 37970 transitions. [2022-10-16 14:47:29,309 INFO L78 Accepts]: Start accepts. Automaton has 24048 states and 37970 transitions. Word has length 41 [2022-10-16 14:47:29,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:29,309 INFO L495 AbstractCegarLoop]: Abstraction has 24048 states and 37970 transitions. [2022-10-16 14:47:29,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.541666666666667) internal successors, (109), 23 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 24048 states and 37970 transitions. [2022-10-16 14:47:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 14:47:29,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:29,316 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:29,353 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 14:47:29,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 14:47:29,531 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash 75322513, now seen corresponding path program 1 times [2022-10-16 14:47:29,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:29,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786571719] [2022-10-16 14:47:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:29,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 14:47:29,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:29,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786571719] [2022-10-16 14:47:29,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786571719] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:29,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:29,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:47:29,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633390791] [2022-10-16 14:47:29,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:29,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:29,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:29,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:47:29,651 INFO L87 Difference]: Start difference. First operand 24048 states and 37970 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:33,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:33,717 INFO L93 Difference]: Finished difference Result 64321 states and 100384 transitions. [2022-10-16 14:47:33,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:47:33,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 14:47:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:33,913 INFO L225 Difference]: With dead ends: 64321 [2022-10-16 14:47:33,913 INFO L226 Difference]: Without dead ends: 64320 [2022-10-16 14:47:33,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:33,935 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 269 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:33,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 183 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:34,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64320 states. [2022-10-16 14:47:36,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64320 to 28264. [2022-10-16 14:47:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28264 states, 28262 states have (on average 1.5809213785294742) internal successors, (44680), 28263 states have internal predecessors, (44680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28264 states to 28264 states and 44680 transitions. [2022-10-16 14:47:36,661 INFO L78 Accepts]: Start accepts. Automaton has 28264 states and 44680 transitions. Word has length 42 [2022-10-16 14:47:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:36,662 INFO L495 AbstractCegarLoop]: Abstraction has 28264 states and 44680 transitions. [2022-10-16 14:47:36,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28264 states and 44680 transitions. [2022-10-16 14:47:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 14:47:36,672 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:36,672 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:36,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:47:36,673 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:36,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash 35355659, now seen corresponding path program 1 times [2022-10-16 14:47:36,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:36,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304582163] [2022-10-16 14:47:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:47:36,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:36,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304582163] [2022-10-16 14:47:36,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304582163] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:36,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374010563] [2022-10-16 14:47:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:36,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:36,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:36,852 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 14:47:36,872 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 14:47:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:36,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:47:36,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:37,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:37,564 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:37,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374010563] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:37,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:37,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 26 [2022-10-16 14:47:37,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315858098] [2022-10-16 14:47:37,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:37,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 14:47:37,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:37,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 14:47:37,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:47:37,568 INFO L87 Difference]: Start difference. First operand 28264 states and 44680 transitions. Second operand has 27 states, 27 states have (on average 4.555555555555555) internal successors, (123), 26 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 14:47:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:44,335 INFO L93 Difference]: Finished difference Result 109854 states and 172837 transitions. [2022-10-16 14:47:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:47:44,336 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.555555555555555) internal successors, (123), 26 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 45 [2022-10-16 14:47:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:44,552 INFO L225 Difference]: With dead ends: 109854 [2022-10-16 14:47:44,553 INFO L226 Difference]: Without dead ends: 81828 [2022-10-16 14:47:44,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1469, Invalid=4537, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 14:47:44,607 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2957 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2957 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:44,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2957 Valid, 1314 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:47:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81828 states. [2022-10-16 14:47:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81828 to 52892. [2022-10-16 14:47:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52892 states, 52890 states have (on average 1.5103989411987142) internal successors, (79885), 52891 states have internal predecessors, (79885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:49,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52892 states to 52892 states and 79885 transitions. [2022-10-16 14:47:49,422 INFO L78 Accepts]: Start accepts. Automaton has 52892 states and 79885 transitions. Word has length 45 [2022-10-16 14:47:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:49,422 INFO L495 AbstractCegarLoop]: Abstraction has 52892 states and 79885 transitions. [2022-10-16 14:47:49,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.555555555555555) internal successors, (123), 26 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 14:47:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 52892 states and 79885 transitions. [2022-10-16 14:47:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 14:47:49,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:49,486 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:49,528 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 14:47:49,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:49,700 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:47:49,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:49,701 INFO L85 PathProgramCache]: Analyzing trace with hash 870777887, now seen corresponding path program 1 times [2022-10-16 14:47:49,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:49,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448510505] [2022-10-16 14:47:49,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:49,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 131 proven. 7 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-10-16 14:47:49,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:49,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448510505] [2022-10-16 14:47:49,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448510505] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:49,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464756269] [2022-10-16 14:47:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:49,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:49,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:49,944 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 14:47:49,959 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 14:47:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:50,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:47:50,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:50,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:51,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464756269] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:51,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:51,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 22, 22] total 50 [2022-10-16 14:47:51,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256158341] [2022-10-16 14:47:51,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:51,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 14:47:51,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:51,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 14:47:51,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:47:51,072 INFO L87 Difference]: Start difference. First operand 52892 states and 79885 transitions. Second operand has 51 states, 51 states have (on average 4.235294117647059) internal successors, (216), 50 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:06,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:06,831 INFO L93 Difference]: Finished difference Result 188511 states and 279387 transitions. [2022-10-16 14:48:06,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-10-16 14:48:06,832 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.235294117647059) internal successors, (216), 50 states have internal predecessors, (216), 0 states have call successors, (0), 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 92 [2022-10-16 14:48:06,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:07,093 INFO L225 Difference]: With dead ends: 188511 [2022-10-16 14:48:07,094 INFO L226 Difference]: Without dead ends: 135621 [2022-10-16 14:48:07,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7270 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=6129, Invalid=19311, Unknown=0, NotChecked=0, Total=25440 [2022-10-16 14:48:07,217 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 8946 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8946 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:07,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8946 Valid, 2691 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:48:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135621 states. [2022-10-16 14:48:11,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135621 to 63698. [2022-10-16 14:48:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63698 states, 63696 states have (on average 1.4538903541823662) internal successors, (92607), 63697 states have internal predecessors, (92607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:12,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63698 states to 63698 states and 92607 transitions. [2022-10-16 14:48:12,256 INFO L78 Accepts]: Start accepts. Automaton has 63698 states and 92607 transitions. Word has length 92 [2022-10-16 14:48:12,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:12,256 INFO L495 AbstractCegarLoop]: Abstraction has 63698 states and 92607 transitions. [2022-10-16 14:48:12,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.235294117647059) internal successors, (216), 50 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:12,256 INFO L276 IsEmpty]: Start isEmpty. Operand 63698 states and 92607 transitions. [2022-10-16 14:48:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 14:48:12,272 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:12,272 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:12,305 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 14:48:12,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:12,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:48:12,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:12,488 INFO L85 PathProgramCache]: Analyzing trace with hash 561040171, now seen corresponding path program 1 times [2022-10-16 14:48:12,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:12,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004786678] [2022-10-16 14:48:12,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:12,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-10-16 14:48:12,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:12,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004786678] [2022-10-16 14:48:12,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004786678] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:48:12,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:48:12,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:48:12,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115541312] [2022-10-16 14:48:12,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:48:12,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:48:12,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:12,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:48:12,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:48:12,731 INFO L87 Difference]: Start difference. First operand 63698 states and 92607 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:22,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:22,934 INFO L93 Difference]: Finished difference Result 155352 states and 225514 transitions. [2022-10-16 14:48:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:48:22,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 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 99 [2022-10-16 14:48:22,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:23,218 INFO L225 Difference]: With dead ends: 155352 [2022-10-16 14:48:23,218 INFO L226 Difference]: Without dead ends: 155351 [2022-10-16 14:48:23,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:48:23,253 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 236 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:23,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 259 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:48:23,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155351 states. [2022-10-16 14:48:28,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155351 to 63698. [2022-10-16 14:48:28,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63698 states, 63696 states have (on average 1.4538903541823662) internal successors, (92607), 63697 states have internal predecessors, (92607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63698 states to 63698 states and 92607 transitions. [2022-10-16 14:48:28,434 INFO L78 Accepts]: Start accepts. Automaton has 63698 states and 92607 transitions. Word has length 99 [2022-10-16 14:48:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:28,434 INFO L495 AbstractCegarLoop]: Abstraction has 63698 states and 92607 transitions. [2022-10-16 14:48:28,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 63698 states and 92607 transitions. [2022-10-16 14:48:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 14:48:28,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:28,448 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:28,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:48:28,448 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:48:28,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:28,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2007548123, now seen corresponding path program 1 times [2022-10-16 14:48:28,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:28,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117517151] [2022-10-16 14:48:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:28,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 208 proven. 1 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-10-16 14:48:28,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:28,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117517151] [2022-10-16 14:48:28,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117517151] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:48:28,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336661382] [2022-10-16 14:48:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:28,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:28,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:48:28,680 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 14:48:28,687 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 14:48:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:28,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:48:28,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:48:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:48:29,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:48:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:48:30,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336661382] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:48:30,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:48:30,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 22, 22] total 51 [2022-10-16 14:48:30,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199063462] [2022-10-16 14:48:30,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:48:30,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 14:48:30,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:30,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 14:48:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=1987, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:48:30,067 INFO L87 Difference]: Start difference. First operand 63698 states and 92607 transitions. Second operand has 51 states, 51 states have (on average 4.7254901960784315) internal successors, (241), 51 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:20,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:20,915 INFO L93 Difference]: Finished difference Result 522890 states and 762152 transitions. [2022-10-16 14:49:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-10-16 14:49:20,915 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.7254901960784315) internal successors, (241), 51 states have internal predecessors, (241), 0 states have call successors, (0), 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 101 [2022-10-16 14:49:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:22,137 INFO L225 Difference]: With dead ends: 522890 [2022-10-16 14:49:22,137 INFO L226 Difference]: Without dead ends: 459487 [2022-10-16 14:49:22,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38006 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=17563, Invalid=78227, Unknown=0, NotChecked=0, Total=95790 [2022-10-16 14:49:22,374 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 16114 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16114 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1708 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:22,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16114 Valid, 3378 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1708 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 14:49:22,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459487 states.