/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-3.2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:47:07,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:47:07,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:47:08,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:47:08,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:47:08,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:47:08,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:47:08,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:47:08,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:47:08,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:47:08,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:47:08,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:47:08,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:47:08,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:47:08,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:47:08,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:47:08,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:47:08,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:47:08,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:47:08,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:47:08,123 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 14:47:08,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:47:08,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:47:08,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:47:08,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:47:08,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:47:08,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:47:08,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:47:08,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:47:08,182 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:47:08,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:47:08,183 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:47:08,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:47:08,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:47:08,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:47:08,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:47:08,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:47:08,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:47:08,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:47:08,185 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:47:08,185 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:47:08,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:47:08,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:47:08,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:47:08,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:47:08,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:47:08,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:47:08,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:47:08,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:47:08,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:47:08,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:47:08,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:47:08,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:47:08,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:47:08,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:47:08,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:47:08,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:47:08,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:47:08,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:47:08,650 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:47:08,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2022-10-16 14:47:08,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ceb2470/2d980e7130c940ab83c17bd18c2d24be/FLAG1706957ce [2022-10-16 14:47:09,373 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:47:09,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2022-10-16 14:47:09,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ceb2470/2d980e7130c940ab83c17bd18c2d24be/FLAG1706957ce [2022-10-16 14:47:09,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ceb2470/2d980e7130c940ab83c17bd18c2d24be [2022-10-16 14:47:09,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:47:09,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:47:09,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:47:09,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:47:09,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:47:09,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4b2292 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 14:47:09,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:47:09,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:47:10,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:47:10,125 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:47:10,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:47:10,259 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:47:10,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:10 WrapperNode [2022-10-16 14:47:10,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:47:10,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:47:10,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:47:10,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:47:10,272 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 14:47:10,304 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 14:47:10,355 INFO L138 Inliner]: procedures = 125, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 126 [2022-10-16 14:47:10,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:47:10,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:47:10,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:47:10,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:47:10,368 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 14:47:10,368 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 14:47:10,372 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 14:47:10,373 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 14:47:10,380 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 14:47:10,385 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 14:47:10,387 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 14:47:10,389 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 14:47:10,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:47:10,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:47:10,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:47:10,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:47:10,394 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 14:47:10,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:47:10,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:10,432 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 14:47:10,441 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 14:47:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:47:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:47:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:47:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:47:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:47:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:47:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:47:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:47:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:47:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:47:10,739 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:47:10,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:47:11,135 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:47:11,153 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:47:11,153 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:47:11,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:11 BoogieIcfgContainer [2022-10-16 14:47:11,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:47:11,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:47:11,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:47:11,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:47:11,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:47:09" (1/3) ... [2022-10-16 14:47:11,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cdd4b63 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 14:47:11,169 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 14:47:11,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cdd4b63 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 14:47:11,169 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 14:47:11,174 INFO L112 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2022-10-16 14:47:11,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:47:11,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:47:11,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:47:11,309 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;@5c76eb65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:47:11,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:47:11,321 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 14:47:11,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:11,341 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:11,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:11,343 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 14:47:11,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850637, now seen corresponding path program 1 times [2022-10-16 14:47:11,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:11,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785430141] [2022-10-16 14:47:11,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:11,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:47:11,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:11,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785430141] [2022-10-16 14:47:11,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785430141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:11,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:11,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:47:11,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224942815] [2022-10-16 14:47:11,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:11,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:11,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:11,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:11,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:11,801 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 14:47:11,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:11,901 INFO L93 Difference]: Finished difference Result 98 states and 148 transitions. [2022-10-16 14:47:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:47:11,904 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 14:47:11,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:11,916 INFO L225 Difference]: With dead ends: 98 [2022-10-16 14:47:11,917 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 14:47:11,922 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 14:47:11,931 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 31 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:11,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 132 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:11,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 14:47:11,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-10-16 14:47:11,977 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 14:47:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 73 transitions. [2022-10-16 14:47:11,981 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 73 transitions. Word has length 7 [2022-10-16 14:47:11,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:11,982 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 73 transitions. [2022-10-16 14:47:11,982 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 14:47:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2022-10-16 14:47:11,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:11,983 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:11,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:11,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:47:11,984 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 14:47:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:11,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910219, now seen corresponding path program 1 times [2022-10-16 14:47:11,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:11,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061504293] [2022-10-16 14:47:11,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:11,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,091 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 14:47:12,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:12,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061504293] [2022-10-16 14:47:12,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061504293] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:12,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:12,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:12,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030178709] [2022-10-16 14:47:12,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:12,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:12,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:12,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:12,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:12,097 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 14:47:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:12,227 INFO L93 Difference]: Finished difference Result 113 states and 173 transitions. [2022-10-16 14:47:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:47:12,228 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 14:47:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:12,232 INFO L225 Difference]: With dead ends: 113 [2022-10-16 14:47:12,234 INFO L226 Difference]: Without dead ends: 111 [2022-10-16 14:47:12,236 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 14:47:12,237 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 68 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:12,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 165 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-10-16 14:47:12,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 65. [2022-10-16 14:47:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 61 states have (on average 1.6721311475409837) internal successors, (102), 64 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 102 transitions. [2022-10-16 14:47:12,260 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 102 transitions. Word has length 7 [2022-10-16 14:47:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:12,260 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 102 transitions. [2022-10-16 14:47:12,261 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 14:47:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2022-10-16 14:47:12,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:12,262 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:12,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:12,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:47:12,262 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 14:47:12,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:12,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908747, now seen corresponding path program 1 times [2022-10-16 14:47:12,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:12,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632206922] [2022-10-16 14:47:12,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,329 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 14:47:12,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:12,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632206922] [2022-10-16 14:47:12,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632206922] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:12,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:12,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587075466] [2022-10-16 14:47:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:12,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:12,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:12,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:12,336 INFO L87 Difference]: Start difference. First operand 65 states and 102 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 14:47:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:12,440 INFO L93 Difference]: Finished difference Result 190 states and 288 transitions. [2022-10-16 14:47:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:47:12,443 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 14:47:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:12,447 INFO L225 Difference]: With dead ends: 190 [2022-10-16 14:47:12,447 INFO L226 Difference]: Without dead ends: 188 [2022-10-16 14:47:12,448 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 14:47:12,451 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 67 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:12,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 167 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:12,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-10-16 14:47:12,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 100. [2022-10-16 14:47:12,490 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 14:47:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 151 transitions. [2022-10-16 14:47:12,493 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 151 transitions. Word has length 7 [2022-10-16 14:47:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:12,493 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 151 transitions. [2022-10-16 14:47:12,496 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 14:47:12,496 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 151 transitions. [2022-10-16 14:47:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:47:12,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:12,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:12,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:47:12,498 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 14:47:12,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:12,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1099150481, now seen corresponding path program 1 times [2022-10-16 14:47:12,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:12,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195503561] [2022-10-16 14:47:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,657 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 14:47:12,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:12,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195503561] [2022-10-16 14:47:12,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195503561] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:12,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258127382] [2022-10-16 14:47:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:12,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:12,662 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 14:47:12,689 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 14:47:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:12,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:12,834 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 14:47:12,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:12,898 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 14:47:12,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258127382] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:12,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:12,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:47:12,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029592593] [2022-10-16 14:47:12,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:12,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:47:12,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:12,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:47:12,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:12,902 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 14:47:13,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:13,220 INFO L93 Difference]: Finished difference Result 450 states and 670 transitions. [2022-10-16 14:47:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:47:13,221 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 14:47:13,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:13,224 INFO L225 Difference]: With dead ends: 450 [2022-10-16 14:47:13,224 INFO L226 Difference]: Without dead ends: 449 [2022-10-16 14:47:13,225 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 14:47:13,227 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 910 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:13,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 463 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-10-16 14:47:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 230. [2022-10-16 14:47:13,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 226 states have (on average 1.6194690265486726) internal successors, (366), 229 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 366 transitions. [2022-10-16 14:47:13,261 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 366 transitions. Word has length 15 [2022-10-16 14:47:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:13,261 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 366 transitions. [2022-10-16 14:47:13,262 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 14:47:13,262 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 366 transitions. [2022-10-16 14:47:13,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:47:13,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:13,263 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:13,296 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 14:47:13,478 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 14:47:13,480 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 14:47:13,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:13,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1191809604, now seen corresponding path program 1 times [2022-10-16 14:47:13,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:13,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050072072] [2022-10-16 14:47:13,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:13,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:13,691 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 14:47:13,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:13,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050072072] [2022-10-16 14:47:13,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050072072] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:13,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235169848] [2022-10-16 14:47:13,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:13,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:13,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:13,694 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 14:47:13,716 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 14:47:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:13,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:13,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:13,818 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 14:47:13,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:13,882 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 14:47:13,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235169848] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:13,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:13,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:47:13,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263461073] [2022-10-16 14:47:13,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:13,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:47:13,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:47:13,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:13,895 INFO L87 Difference]: Start difference. First operand 230 states and 366 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 14:47:14,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:14,265 INFO L93 Difference]: Finished difference Result 1502 states and 2368 transitions. [2022-10-16 14:47:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:47:14,266 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 14:47:14,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:14,277 INFO L225 Difference]: With dead ends: 1502 [2022-10-16 14:47:14,277 INFO L226 Difference]: Without dead ends: 1501 [2022-10-16 14:47:14,279 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 14:47:14,285 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 871 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:14,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 553 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:14,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2022-10-16 14:47:14,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 632. [2022-10-16 14:47:14,380 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 14:47:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1035 transitions. [2022-10-16 14:47:14,384 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1035 transitions. Word has length 15 [2022-10-16 14:47:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:14,385 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 1035 transitions. [2022-10-16 14:47:14,385 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 14:47:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1035 transitions. [2022-10-16 14:47:14,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:47:14,386 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:14,386 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:14,425 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 14:47:14,602 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 14:47:14,603 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 14:47:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash 286073558, now seen corresponding path program 1 times [2022-10-16 14:47:14,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:14,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379120787] [2022-10-16 14:47:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:14,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:14,672 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 14:47:14,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:14,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379120787] [2022-10-16 14:47:14,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379120787] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:14,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016588689] [2022-10-16 14:47:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:14,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:14,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:14,674 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 14:47:14,677 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 14:47:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:14,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:14,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:14,771 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 14:47:14,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:47:14,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016588689] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:14,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:47:14,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 14:47:14,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033250045] [2022-10-16 14:47:14,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:14,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:14,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:14,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:14,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:47:14,774 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 14:47:14,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:14,903 INFO L93 Difference]: Finished difference Result 1063 states and 1708 transitions. [2022-10-16 14:47:14,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:47:14,904 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 14:47:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:14,910 INFO L225 Difference]: With dead ends: 1063 [2022-10-16 14:47:14,910 INFO L226 Difference]: Without dead ends: 1062 [2022-10-16 14:47:14,911 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 14:47:14,912 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 223 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:14,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 256 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:14,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-10-16 14:47:14,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 631. [2022-10-16 14:47:14,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 628 states have (on average 1.624203821656051) internal successors, (1020), 630 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1020 transitions. [2022-10-16 14:47:14,962 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1020 transitions. Word has length 16 [2022-10-16 14:47:14,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:14,962 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 1020 transitions. [2022-10-16 14:47:14,963 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 14:47:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1020 transitions. [2022-10-16 14:47:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:47:14,964 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:14,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:14,996 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 14:47:15,177 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 14:47:15,178 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 14:47:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1708607995, now seen corresponding path program 1 times [2022-10-16 14:47:15,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:15,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758926556] [2022-10-16 14:47:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,259 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 14:47:15,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:15,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758926556] [2022-10-16 14:47:15,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758926556] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:15,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184707844] [2022-10-16 14:47:15,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:15,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:15,261 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 14:47:15,277 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 14:47:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:15,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:15,379 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 14:47:15,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:47:15,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184707844] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:15,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:47:15,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 14:47:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443302445] [2022-10-16 14:47:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:15,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:15,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:47:15,381 INFO L87 Difference]: Start difference. First operand 631 states and 1020 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 14:47:15,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:15,536 INFO L93 Difference]: Finished difference Result 1162 states and 1826 transitions. [2022-10-16 14:47:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:47:15,536 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 14:47:15,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:15,542 INFO L225 Difference]: With dead ends: 1162 [2022-10-16 14:47:15,543 INFO L226 Difference]: Without dead ends: 1161 [2022-10-16 14:47:15,544 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 14:47:15,545 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 226 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:15,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 282 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-10-16 14:47:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 630. [2022-10-16 14:47:15,618 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 14:47:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1002 transitions. [2022-10-16 14:47:15,621 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1002 transitions. Word has length 16 [2022-10-16 14:47:15,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:15,622 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 1002 transitions. [2022-10-16 14:47:15,622 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 14:47:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1002 transitions. [2022-10-16 14:47:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 14:47:15,630 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:15,630 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:15,667 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 14:47:15,843 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 14:47:15,843 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 14:47:15,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:15,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2132913141, now seen corresponding path program 1 times [2022-10-16 14:47:15,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:15,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142116646] [2022-10-16 14:47:15,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,939 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 14:47:15,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:15,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142116646] [2022-10-16 14:47:15,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142116646] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:15,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:15,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:15,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767950127] [2022-10-16 14:47:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:15,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:47:15,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:15,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:47:15,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:47:15,942 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 14:47:16,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:16,039 INFO L93 Difference]: Finished difference Result 1820 states and 2902 transitions. [2022-10-16 14:47:16,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:47:16,039 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 14:47:16,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:16,046 INFO L225 Difference]: With dead ends: 1820 [2022-10-16 14:47:16,046 INFO L226 Difference]: Without dead ends: 1192 [2022-10-16 14:47:16,049 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 14:47:16,050 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 14:47:16,051 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 14:47:16,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-10-16 14:47:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1186. [2022-10-16 14:47:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1184 states have (on average 1.5827702702702702) internal successors, (1874), 1185 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1874 transitions. [2022-10-16 14:47:16,152 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1874 transitions. Word has length 36 [2022-10-16 14:47:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:16,153 INFO L495 AbstractCegarLoop]: Abstraction has 1186 states and 1874 transitions. [2022-10-16 14:47:16,153 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 14:47:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1874 transitions. [2022-10-16 14:47:16,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:47:16,155 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:16,155 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 14:47:16,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:47:16,156 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 14:47:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:16,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1516532581, now seen corresponding path program 2 times [2022-10-16 14:47:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:16,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008167895] [2022-10-16 14:47:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:16,235 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 14:47:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:16,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008167895] [2022-10-16 14:47:16,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008167895] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:16,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:16,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:47:16,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186078372] [2022-10-16 14:47:16,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:16,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:47:16,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:16,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:47:16,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:16,237 INFO L87 Difference]: Start difference. First operand 1186 states and 1874 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 14:47:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:16,524 INFO L93 Difference]: Finished difference Result 3204 states and 4996 transitions. [2022-10-16 14:47:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:47:16,525 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 14:47:16,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:16,544 INFO L225 Difference]: With dead ends: 3204 [2022-10-16 14:47:16,544 INFO L226 Difference]: Without dead ends: 3203 [2022-10-16 14:47:16,545 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 14:47:16,546 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:16,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 151 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2022-10-16 14:47:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 1812. [2022-10-16 14:47:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1810 states have (on average 1.5812154696132596) internal successors, (2862), 1811 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:16,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2862 transitions. [2022-10-16 14:47:16,722 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2862 transitions. Word has length 39 [2022-10-16 14:47:16,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:16,722 INFO L495 AbstractCegarLoop]: Abstraction has 1812 states and 2862 transitions. [2022-10-16 14:47:16,723 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 14:47:16,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2862 transitions. [2022-10-16 14:47:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:47:16,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:16,726 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2022-10-16 14:47:16,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:47:16,726 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 14:47:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash 304216335, now seen corresponding path program 2 times [2022-10-16 14:47:16,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:16,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438403505] [2022-10-16 14:47:16,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:16,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:16,865 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 14:47:16,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:16,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438403505] [2022-10-16 14:47:16,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438403505] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:16,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:16,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:47:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783885141] [2022-10-16 14:47:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:16,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:47:16,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:16,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:47:16,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:16,867 INFO L87 Difference]: Start difference. First operand 1812 states and 2862 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 14:47:17,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:17,294 INFO L93 Difference]: Finished difference Result 5016 states and 7837 transitions. [2022-10-16 14:47:17,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:47:17,295 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 14:47:17,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:17,324 INFO L225 Difference]: With dead ends: 5016 [2022-10-16 14:47:17,324 INFO L226 Difference]: Without dead ends: 5015 [2022-10-16 14:47:17,326 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 14:47:17,328 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 121 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:17,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 120 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5015 states. [2022-10-16 14:47:17,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5015 to 2870. [2022-10-16 14:47:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2868 states have (on average 1.5857740585774058) internal successors, (4548), 2869 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:17,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 4548 transitions. [2022-10-16 14:47:17,589 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 4548 transitions. Word has length 39 [2022-10-16 14:47:17,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:17,589 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 4548 transitions. [2022-10-16 14:47:17,589 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 14:47:17,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 4548 transitions. [2022-10-16 14:47:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 14:47:17,594 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:17,594 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2022-10-16 14:47:17,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:47:17,594 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 14:47:17,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash -943197334, now seen corresponding path program 1 times [2022-10-16 14:47:17,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:17,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744037] [2022-10-16 14:47:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:17,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:17,777 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 14:47:17,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:17,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744037] [2022-10-16 14:47:17,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:17,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:17,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:47:17,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030845424] [2022-10-16 14:47:17,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:17,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:17,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:17,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:17,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:47:17,781 INFO L87 Difference]: Start difference. First operand 2870 states and 4548 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 14:47:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:18,642 INFO L93 Difference]: Finished difference Result 8643 states and 13549 transitions. [2022-10-16 14:47:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:47:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 40 [2022-10-16 14:47:18,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:18,699 INFO L225 Difference]: With dead ends: 8643 [2022-10-16 14:47:18,699 INFO L226 Difference]: Without dead ends: 8642 [2022-10-16 14:47:18,702 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 14:47:18,703 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 269 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:18,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 191 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-10-16 14:47:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 3928. [2022-10-16 14:47:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3928 states, 3926 states have (on average 1.5878757004584818) internal successors, (6234), 3927 states have internal predecessors, (6234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 6234 transitions. [2022-10-16 14:47:19,200 INFO L78 Accepts]: Start accepts. Automaton has 3928 states and 6234 transitions. Word has length 40 [2022-10-16 14:47:19,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:19,201 INFO L495 AbstractCegarLoop]: Abstraction has 3928 states and 6234 transitions. [2022-10-16 14:47:19,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 14:47:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3928 states and 6234 transitions. [2022-10-16 14:47:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:47:19,207 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:19,207 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:19,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:47:19,208 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 14:47:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 134572546, now seen corresponding path program 1 times [2022-10-16 14:47:19,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:19,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593545389] [2022-10-16 14:47:19,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:19,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:19,289 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 14:47:19,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:19,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593545389] [2022-10-16 14:47:19,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593545389] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:19,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458886270] [2022-10-16 14:47:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:19,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:19,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:19,291 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 14:47:19,319 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 14:47:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:19,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:47:19,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:19,515 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 14:47:19,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:19,694 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 14:47:19,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458886270] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:19,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:19,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 10, 10] total 23 [2022-10-16 14:47:19,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938971228] [2022-10-16 14:47:19,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:19,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:47:19,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:19,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:47:19,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:47:19,697 INFO L87 Difference]: Start difference. First operand 3928 states and 6234 transitions. Second operand has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 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 14:47:26,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:26,530 INFO L93 Difference]: Finished difference Result 43641 states and 68525 transitions. [2022-10-16 14:47:26,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-10-16 14:47:26,530 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 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) Word has length 41 [2022-10-16 14:47:26,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:26,663 INFO L225 Difference]: With dead ends: 43641 [2022-10-16 14:47:26,664 INFO L226 Difference]: Without dead ends: 39849 [2022-10-16 14:47:26,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6575 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4317, Invalid=12713, Unknown=0, NotChecked=0, Total=17030 [2022-10-16 14:47:26,693 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 7358 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7358 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:26,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7358 Valid, 1081 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:47:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39849 states. [2022-10-16 14:47:29,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39849 to 23946. [2022-10-16 14:47:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23946 states, 23944 states have (on average 1.5798112261944537) internal successors, (37827), 23945 states have internal predecessors, (37827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:29,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23946 states to 23946 states and 37827 transitions. [2022-10-16 14:47:29,178 INFO L78 Accepts]: Start accepts. Automaton has 23946 states and 37827 transitions. Word has length 41 [2022-10-16 14:47:29,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:29,178 INFO L495 AbstractCegarLoop]: Abstraction has 23946 states and 37827 transitions. [2022-10-16 14:47:29,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 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 14:47:29,179 INFO L276 IsEmpty]: Start isEmpty. Operand 23946 states and 37827 transitions. [2022-10-16 14:47:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 14:47:29,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:29,185 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:29,222 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 14:47:29,401 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 14:47:29,402 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 14:47:29,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:29,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2039573615, now seen corresponding path program 1 times [2022-10-16 14:47:29,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:29,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689148204] [2022-10-16 14:47:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:29,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:29,516 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 14:47:29,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:29,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689148204] [2022-10-16 14:47:29,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689148204] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:29,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:29,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:47:29,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042046695] [2022-10-16 14:47:29,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:29,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:29,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:29,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:29,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:47:29,520 INFO L87 Difference]: Start difference. First operand 23946 states and 37827 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:33,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:33,781 INFO L93 Difference]: Finished difference Result 64395 states and 100480 transitions. [2022-10-16 14:47:33,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:47:33,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 14:47:33,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:34,002 INFO L225 Difference]: With dead ends: 64395 [2022-10-16 14:47:34,002 INFO L226 Difference]: Without dead ends: 64394 [2022-10-16 14:47:34,030 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 14:47:34,031 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 237 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:34,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 221 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:34,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64394 states. [2022-10-16 14:47:36,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64394 to 28186. [2022-10-16 14:47:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28186 states, 28184 states have (on average 1.581500141924496) internal successors, (44573), 28185 states have internal predecessors, (44573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:36,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28186 states to 28186 states and 44573 transitions. [2022-10-16 14:47:36,825 INFO L78 Accepts]: Start accepts. Automaton has 28186 states and 44573 transitions. Word has length 42 [2022-10-16 14:47:36,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:36,826 INFO L495 AbstractCegarLoop]: Abstraction has 28186 states and 44573 transitions. [2022-10-16 14:47:36,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 28186 states and 44573 transitions. [2022-10-16 14:47:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 14:47:36,841 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:36,841 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:36,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:47:36,842 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 14:47:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:36,843 INFO L85 PathProgramCache]: Analyzing trace with hash 154294147, now seen corresponding path program 1 times [2022-10-16 14:47:36,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:36,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236016293] [2022-10-16 14:47:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:36,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:37,010 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 14:47:37,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:37,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236016293] [2022-10-16 14:47:37,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236016293] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:37,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701238479] [2022-10-16 14:47:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:37,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:37,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:37,012 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 14:47:37,017 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 14:47:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:37,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:47:37,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:37,255 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 14:47:37,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:37,477 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 14:47:37,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701238479] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:37,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:37,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 26 [2022-10-16 14:47:37,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694217372] [2022-10-16 14:47:37,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:37,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 14:47:37,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 14:47:37,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:47:37,481 INFO L87 Difference]: Start difference. First operand 28186 states and 44573 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 14:47:45,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:45,538 INFO L93 Difference]: Finished difference Result 110424 states and 173693 transitions. [2022-10-16 14:47:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:47:45,539 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 14:47:45,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:45,754 INFO L225 Difference]: With dead ends: 110424 [2022-10-16 14:47:45,755 INFO L226 Difference]: Without dead ends: 82240 [2022-10-16 14:47:45,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1469, Invalid=4537, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 14:47:45,815 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 2695 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:45,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 1488 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:47:45,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82240 states. [2022-10-16 14:47:50,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82240 to 52957. [2022-10-16 14:47:50,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52957 states, 52955 states have (on average 1.509866868095553) internal successors, (79955), 52956 states have internal predecessors, (79955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52957 states to 52957 states and 79955 transitions. [2022-10-16 14:47:50,586 INFO L78 Accepts]: Start accepts. Automaton has 52957 states and 79955 transitions. Word has length 45 [2022-10-16 14:47:50,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:50,587 INFO L495 AbstractCegarLoop]: Abstraction has 52957 states and 79955 transitions. [2022-10-16 14:47:50,587 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 14:47:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand 52957 states and 79955 transitions. [2022-10-16 14:47:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 14:47:50,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:50,634 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:50,682 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 14:47:50,847 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 14:47:50,848 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 14:47:50,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:50,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1081952079, now seen corresponding path program 1 times [2022-10-16 14:47:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:50,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951064075] [2022-10-16 14:47:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:51,040 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 14:47:51,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:51,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951064075] [2022-10-16 14:47:51,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951064075] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:51,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571538511] [2022-10-16 14:47:51,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:51,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:51,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:51,043 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 14:47:51,067 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 14:47:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:51,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:47:51,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:51,521 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 14:47:51,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:52,147 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 14:47:52,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571538511] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:52,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:52,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 22, 22] total 50 [2022-10-16 14:47:52,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699203045] [2022-10-16 14:47:52,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:52,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 14:47:52,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:52,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 14:47:52,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:47:52,152 INFO L87 Difference]: Start difference. First operand 52957 states and 79955 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 14:48:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:08,471 INFO L93 Difference]: Finished difference Result 187746 states and 278299 transitions. [2022-10-16 14:48:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-10-16 14:48:08,471 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 14:48:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:08,908 INFO L225 Difference]: With dead ends: 187746 [2022-10-16 14:48:08,909 INFO L226 Difference]: Without dead ends: 135092 [2022-10-16 14:48:09,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7270 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=6129, Invalid=19311, Unknown=0, NotChecked=0, Total=25440 [2022-10-16 14:48:09,023 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 8590 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8590 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:09,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8590 Valid, 2624 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:48:09,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135092 states. [2022-10-16 14:48:14,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135092 to 63706. [2022-10-16 14:48:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63706 states, 63704 states have (on average 1.4539746326761271) internal successors, (92624), 63705 states have internal predecessors, (92624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63706 states to 63706 states and 92624 transitions. [2022-10-16 14:48:14,277 INFO L78 Accepts]: Start accepts. Automaton has 63706 states and 92624 transitions. Word has length 92 [2022-10-16 14:48:14,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:14,277 INFO L495 AbstractCegarLoop]: Abstraction has 63706 states and 92624 transitions. [2022-10-16 14:48:14,278 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 14:48:14,278 INFO L276 IsEmpty]: Start isEmpty. Operand 63706 states and 92624 transitions. [2022-10-16 14:48:14,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 14:48:14,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:14,295 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 9, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:14,336 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 14:48:14,510 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 14:48:14,511 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 14:48:14,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash 934326635, now seen corresponding path program 1 times [2022-10-16 14:48:14,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:14,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324504077] [2022-10-16 14:48:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:14,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:14,938 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 14:48:14,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:14,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324504077] [2022-10-16 14:48:14,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324504077] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:48:14,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:48:14,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:48:14,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059842217] [2022-10-16 14:48:14,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:48:14,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:48:14,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:14,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:48:14,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:48:14,943 INFO L87 Difference]: Start difference. First operand 63706 states and 92624 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:25,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:25,155 INFO L93 Difference]: Finished difference Result 155607 states and 225847 transitions. [2022-10-16 14:48:25,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:48:25,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 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 14:48:25,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:25,538 INFO L225 Difference]: With dead ends: 155607 [2022-10-16 14:48:25,539 INFO L226 Difference]: Without dead ends: 155606 [2022-10-16 14:48:25,568 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 14:48:25,569 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 263 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:25,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 217 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:48:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155606 states. [2022-10-16 14:48:30,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155606 to 63706. [2022-10-16 14:48:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63706 states, 63704 states have (on average 1.4539746326761271) internal successors, (92624), 63705 states have internal predecessors, (92624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63706 states to 63706 states and 92624 transitions. [2022-10-16 14:48:30,865 INFO L78 Accepts]: Start accepts. Automaton has 63706 states and 92624 transitions. Word has length 99 [2022-10-16 14:48:30,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:30,865 INFO L495 AbstractCegarLoop]: Abstraction has 63706 states and 92624 transitions. [2022-10-16 14:48:30,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 63706 states and 92624 transitions. [2022-10-16 14:48:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 14:48:30,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:30,882 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:30,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:48:30,882 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 14:48:30,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash -224537311, now seen corresponding path program 1 times [2022-10-16 14:48:30,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:30,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788071198] [2022-10-16 14:48:30,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:30,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:31,144 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 14:48:31,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:31,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788071198] [2022-10-16 14:48:31,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788071198] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:48:31,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063733695] [2022-10-16 14:48:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:31,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:31,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:48:31,147 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 14:48:31,150 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 14:48:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:31,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:48:31,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:48:31,685 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 14:48:31,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:48:32,385 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 14:48:32,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063733695] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:48:32,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:48:32,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 22, 22] total 51 [2022-10-16 14:48:32,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626767857] [2022-10-16 14:48:32,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:48:32,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 14:48:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 14:48:32,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=1987, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:48:32,389 INFO L87 Difference]: Start difference. First operand 63706 states and 92624 transitions. Second operand has 51 states, 51 states have (on average 4.705882352941177) internal successors, (240), 51 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:25,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:25,022 INFO L93 Difference]: Finished difference Result 524827 states and 764783 transitions. [2022-10-16 14:49:25,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-10-16 14:49:25,022 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.705882352941177) internal successors, (240), 51 states have internal predecessors, (240), 0 states have call successors, (0), 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 14:49:25,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:26,300 INFO L225 Difference]: With dead ends: 524827 [2022-10-16 14:49:26,300 INFO L226 Difference]: Without dead ends: 461123 [2022-10-16 14:49:26,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38006 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=17563, Invalid=78227, Unknown=0, NotChecked=0, Total=95790 [2022-10-16 14:49:26,558 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 23439 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 2261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23439 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2261 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:26,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23439 Valid, 3128 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2261 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 14:49:26,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461123 states. [2022-10-16 14:49:44,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461123 to 218070. [2022-10-16 14:49:45,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218070 states, 218068 states have (on average 1.4391886934350753) internal successors, (313841), 218069 states have internal predecessors, (313841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:46,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218070 states to 218070 states and 313841 transitions. [2022-10-16 14:49:46,090 INFO L78 Accepts]: Start accepts. Automaton has 218070 states and 313841 transitions. Word has length 101 [2022-10-16 14:49:46,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:46,091 INFO L495 AbstractCegarLoop]: Abstraction has 218070 states and 313841 transitions. [2022-10-16 14:49:46,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.705882352941177) internal successors, (240), 51 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 218070 states and 313841 transitions. [2022-10-16 14:49:46,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-10-16 14:49:46,204 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:46,204 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 21, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:46,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 14:49:46,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:49:46,418 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:46,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1803068067, now seen corresponding path program 1 times [2022-10-16 14:49:46,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:46,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400839527] [2022-10-16 14:49:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:46,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2378 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 2186 trivial. 0 not checked. [2022-10-16 14:49:46,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:46,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400839527] [2022-10-16 14:49:46,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400839527] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:46,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:46,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:49:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122378447] [2022-10-16 14:49:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:46,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:49:46,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:46,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:49:46,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:49:46,804 INFO L87 Difference]: Start difference. First operand 218070 states and 313841 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)