/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-3.0.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:47:06,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:47:06,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:47:07,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:47:07,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:47:07,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:47:07,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:47:07,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:47:07,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:47:07,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:47:07,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:47:07,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:47:07,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:47:07,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:47:07,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:47:07,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:47:07,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:47:07,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:47:07,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:47:07,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:47:07,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:47:07,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:47:07,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:47:07,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:47:07,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:47:07,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:47:07,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:47:07,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:47:07,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:47:07,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:47:07,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:47:07,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:47:07,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:47:07,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:47:07,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:47:07,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:47:07,128 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 14:47:07,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:47:07,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:47:07,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:47:07,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:47:07,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:47:07,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:47:07,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:47:07,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:47:07,187 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:47:07,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:47:07,189 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:47:07,189 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:47:07,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:47:07,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:47:07,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:47:07,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:47:07,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:47:07,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:47:07,190 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:47:07,191 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:47:07,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:47:07,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:47:07,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:47:07,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:47:07,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:47:07,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:47:07,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:47:07,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:47:07,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:47:07,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:47:07,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:47:07,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:47:07,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:47:07,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:47:07,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:47:07,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:47:07,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:47:07,693 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:47:07,693 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:47:07,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.0.i [2022-10-16 14:47:07,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9772a488f/e2a7b1fc52d04db5801368d74263d791/FLAG7f5b79114 [2022-10-16 14:47:08,470 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:47:08,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.0.i [2022-10-16 14:47:08,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9772a488f/e2a7b1fc52d04db5801368d74263d791/FLAG7f5b79114 [2022-10-16 14:47:08,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9772a488f/e2a7b1fc52d04db5801368d74263d791 [2022-10-16 14:47:08,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:47:08,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:47:08,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:47:08,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:47:08,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:47:08,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:08" (1/1) ... [2022-10-16 14:47:08,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60faf484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:08, skipping insertion in model container [2022-10-16 14:47:08,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:47:08" (1/1) ... [2022-10-16 14:47:08,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:47:08,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:47:09,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:47:09,307 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:47:09,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:47:09,386 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:47:09,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09 WrapperNode [2022-10-16 14:47:09,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:47:09,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:47:09,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:47:09,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:47:09,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,442 INFO L138 Inliner]: procedures = 125, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2022-10-16 14:47:09,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:47:09,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:47:09,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:47:09,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:47:09,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,473 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:47:09,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:47:09,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:47:09,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:47:09,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (1/1) ... [2022-10-16 14:47:09,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:47:09,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:09,518 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 14:47:09,525 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 14:47:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:47:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:47:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:47:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:47:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:47:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:47:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:47:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:47:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:47:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:47:09,709 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:47:09,712 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:47:10,116 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:47:10,130 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:47:10,131 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:47:10,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:10 BoogieIcfgContainer [2022-10-16 14:47:10,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:47:10,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:47:10,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:47:10,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:47:10,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:47:08" (1/3) ... [2022-10-16 14:47:10,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0704a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:10, skipping insertion in model container [2022-10-16 14:47:10,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:47:09" (2/3) ... [2022-10-16 14:47:10,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0704a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:47:10, skipping insertion in model container [2022-10-16 14:47:10,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:47:10" (3/3) ... [2022-10-16 14:47:10,147 INFO L112 eAbstractionObserver]: Analyzing ICFG lockfree-3.0.i [2022-10-16 14:47:10,172 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:47:10,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:47:10,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:47:10,276 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;@2e89d4fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:47:10,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:47:10,282 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 14:47:10,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:10,289 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:10,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:10,291 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 14:47:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:10,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850637, now seen corresponding path program 1 times [2022-10-16 14:47:10,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:10,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137723694] [2022-10-16 14:47:10,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:10,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:10,718 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 14:47:10,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:10,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137723694] [2022-10-16 14:47:10,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137723694] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:10,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:10,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:47:10,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263404143] [2022-10-16 14:47:10,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:10,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:10,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:10,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:10,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:10,766 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 14:47:10,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:10,856 INFO L93 Difference]: Finished difference Result 89 states and 132 transitions. [2022-10-16 14:47:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:47:10,859 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 14:47:10,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:10,870 INFO L225 Difference]: With dead ends: 89 [2022-10-16 14:47:10,870 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 14:47:10,873 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 14:47:10,878 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 16 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:10,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 134 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:10,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 14:47:10,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2022-10-16 14:47:10,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 33 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:10,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 50 transitions. [2022-10-16 14:47:10,918 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 50 transitions. Word has length 7 [2022-10-16 14:47:10,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:10,918 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 50 transitions. [2022-10-16 14:47:10,918 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 14:47:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2022-10-16 14:47:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:10,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:10,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:10,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:47:10,920 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 14:47:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:10,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910219, now seen corresponding path program 1 times [2022-10-16 14:47:10,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:10,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905216498] [2022-10-16 14:47:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:10,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:11,037 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 14:47:11,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:11,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905216498] [2022-10-16 14:47:11,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905216498] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:11,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:11,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:11,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602360420] [2022-10-16 14:47:11,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:11,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:11,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:11,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:11,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:11,042 INFO L87 Difference]: Start difference. First operand 34 states and 50 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 14:47:11,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:11,123 INFO L93 Difference]: Finished difference Result 100 states and 150 transitions. [2022-10-16 14:47:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:47:11,124 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 14:47:11,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:11,130 INFO L225 Difference]: With dead ends: 100 [2022-10-16 14:47:11,130 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 14:47:11,130 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 14:47:11,135 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 67 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 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 14:47:11,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 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 14:47:11,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 14:47:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 52. [2022-10-16 14:47:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 51 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 79 transitions. [2022-10-16 14:47:11,149 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 79 transitions. Word has length 7 [2022-10-16 14:47:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:11,149 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 79 transitions. [2022-10-16 14:47:11,150 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 14:47:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2022-10-16 14:47:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:47:11,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:11,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:11,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:47:11,151 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 14:47:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908747, now seen corresponding path program 1 times [2022-10-16 14:47:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:11,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139686788] [2022-10-16 14:47:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:11,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:11,235 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 14:47:11,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:11,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139686788] [2022-10-16 14:47:11,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139686788] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:11,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:11,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:11,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632609201] [2022-10-16 14:47:11,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:11,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:47:11,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:11,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:47:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:47:11,239 INFO L87 Difference]: Start difference. First operand 52 states and 79 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 14:47:11,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:11,350 INFO L93 Difference]: Finished difference Result 152 states and 228 transitions. [2022-10-16 14:47:11,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:47:11,350 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 14:47:11,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:11,355 INFO L225 Difference]: With dead ends: 152 [2022-10-16 14:47:11,355 INFO L226 Difference]: Without dead ends: 150 [2022-10-16 14:47:11,356 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 14:47:11,361 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 67 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:11,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 163 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-10-16 14:47:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 80. [2022-10-16 14:47:11,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 76 states have (on average 1.5789473684210527) internal successors, (120), 79 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 120 transitions. [2022-10-16 14:47:11,395 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 120 transitions. Word has length 7 [2022-10-16 14:47:11,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:11,395 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 120 transitions. [2022-10-16 14:47:11,396 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 14:47:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2022-10-16 14:47:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:47:11,397 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:11,397 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:11,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:47:11,398 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 14:47:11,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1099150481, now seen corresponding path program 1 times [2022-10-16 14:47:11,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:11,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735565051] [2022-10-16 14:47:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:11,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:11,577 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 14:47:11,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:11,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735565051] [2022-10-16 14:47:11,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735565051] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:11,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937820650] [2022-10-16 14:47:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:11,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:11,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:11,601 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 14:47:11,612 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 14:47:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:11,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:11,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:11,764 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 14:47:11,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:11,829 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 14:47:11,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937820650] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:11,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:11,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:47:11,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69853999] [2022-10-16 14:47:11,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:11,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:47:11,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:11,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:47:11,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:11,833 INFO L87 Difference]: Start difference. First operand 80 states and 120 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 14:47:12,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:12,181 INFO L93 Difference]: Finished difference Result 430 states and 639 transitions. [2022-10-16 14:47:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:47:12,182 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 14:47:12,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:12,186 INFO L225 Difference]: With dead ends: 430 [2022-10-16 14:47:12,186 INFO L226 Difference]: Without dead ends: 429 [2022-10-16 14:47:12,187 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 14:47:12,189 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 544 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:12,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 519 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-10-16 14:47:12,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 210. [2022-10-16 14:47:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.6262135922330097) internal successors, (335), 209 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 335 transitions. [2022-10-16 14:47:12,228 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 335 transitions. Word has length 15 [2022-10-16 14:47:12,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:12,229 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 335 transitions. [2022-10-16 14:47:12,229 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 14:47:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 335 transitions. [2022-10-16 14:47:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:47:12,230 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:12,231 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:12,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:47:12,446 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 14:47:12,447 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 14:47:12,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1191869186, now seen corresponding path program 1 times [2022-10-16 14:47:12,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:12,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72376151] [2022-10-16 14:47:12,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,675 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 14:47:12,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:12,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72376151] [2022-10-16 14:47:12,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72376151] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:12,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624435320] [2022-10-16 14:47:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:12,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:12,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:12,678 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 14:47:12,702 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 14:47:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:12,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:12,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:12,808 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 14:47:12,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:12,869 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 14:47:12,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624435320] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:12,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:12,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:47:12,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758297424] [2022-10-16 14:47:12,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:12,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:47:12,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:12,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:47:12,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:47:12,873 INFO L87 Difference]: Start difference. First operand 210 states and 335 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 14:47:13,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:13,209 INFO L93 Difference]: Finished difference Result 1383 states and 2197 transitions. [2022-10-16 14:47:13,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:47:13,209 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 14:47:13,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:13,218 INFO L225 Difference]: With dead ends: 1383 [2022-10-16 14:47:13,219 INFO L226 Difference]: Without dead ends: 1382 [2022-10-16 14:47:13,220 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 14:47:13,222 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 735 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:13,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 504 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:13,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-10-16 14:47:13,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 568. [2022-10-16 14:47:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 564 states have (on average 1.6560283687943262) internal successors, (934), 567 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:13,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 934 transitions. [2022-10-16 14:47:13,310 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 934 transitions. Word has length 15 [2022-10-16 14:47:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:13,310 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 934 transitions. [2022-10-16 14:47:13,311 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 14:47:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 934 transitions. [2022-10-16 14:47:13,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:47:13,313 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:13,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:13,349 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 14:47:13,528 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 14:47:13,529 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 14:47:13,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:13,530 INFO L85 PathProgramCache]: Analyzing trace with hash 286073558, now seen corresponding path program 1 times [2022-10-16 14:47:13,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:13,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079115911] [2022-10-16 14:47:13,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:13,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:13,664 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 14:47:13,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:13,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079115911] [2022-10-16 14:47:13,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079115911] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:13,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866183836] [2022-10-16 14:47:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:13,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:13,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:13,667 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 14:47:13,676 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 14:47:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:13,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:13,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:13,786 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 14:47:13,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:47:13,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866183836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:13,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:47:13,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 14:47:13,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242464809] [2022-10-16 14:47:13,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:13,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:13,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:13,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:13,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:47:13,807 INFO L87 Difference]: Start difference. First operand 568 states and 934 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 14:47:13,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:13,947 INFO L93 Difference]: Finished difference Result 999 states and 1607 transitions. [2022-10-16 14:47:13,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:47:13,948 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 14:47:13,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:13,955 INFO L225 Difference]: With dead ends: 999 [2022-10-16 14:47:13,955 INFO L226 Difference]: Without dead ends: 998 [2022-10-16 14:47:13,959 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 14:47:13,962 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 220 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:13,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 283 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2022-10-16 14:47:14,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 567. [2022-10-16 14:47:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 564 states have (on average 1.6294326241134751) internal successors, (919), 566 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 919 transitions. [2022-10-16 14:47:14,014 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 919 transitions. Word has length 16 [2022-10-16 14:47:14,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:14,015 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 919 transitions. [2022-10-16 14:47:14,015 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 14:47:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 919 transitions. [2022-10-16 14:47:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:47:14,016 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:14,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:14,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 14:47:14,230 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 14:47:14,231 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 14:47:14,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1706760953, now seen corresponding path program 1 times [2022-10-16 14:47:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:14,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971459987] [2022-10-16 14:47:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:14,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:14,312 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 14:47:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:14,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971459987] [2022-10-16 14:47:14,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971459987] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:14,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829805322] [2022-10-16 14:47:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:14,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:14,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:14,315 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 14:47:14,334 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 14:47:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:14,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:47:14,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:14,421 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 14:47:14,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:47:14,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829805322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:14,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:47:14,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 14:47:14,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475753852] [2022-10-16 14:47:14,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:14,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:14,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:14,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:14,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:47:14,424 INFO L87 Difference]: Start difference. First operand 567 states and 919 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 14:47:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:14,569 INFO L93 Difference]: Finished difference Result 1064 states and 1684 transitions. [2022-10-16 14:47:14,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:47:14,570 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 14:47:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:14,576 INFO L225 Difference]: With dead ends: 1064 [2022-10-16 14:47:14,576 INFO L226 Difference]: Without dead ends: 1063 [2022-10-16 14:47:14,577 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 14:47:14,578 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 213 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:14,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 272 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-10-16 14:47:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 566. [2022-10-16 14:47:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 564 states have (on average 1.6028368794326242) internal successors, (904), 565 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 904 transitions. [2022-10-16 14:47:14,627 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 904 transitions. Word has length 16 [2022-10-16 14:47:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:14,628 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 904 transitions. [2022-10-16 14:47:14,628 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 14:47:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 904 transitions. [2022-10-16 14:47:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 14:47:14,631 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:14,631 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:14,670 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 14:47:14,846 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 14:47:14,846 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 14:47:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:14,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1573489711, now seen corresponding path program 1 times [2022-10-16 14:47:14,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:14,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461904511] [2022-10-16 14:47:14,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:14,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:14,962 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 14:47:14,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:14,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461904511] [2022-10-16 14:47:14,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461904511] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:14,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:14,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:47:14,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748777506] [2022-10-16 14:47:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:14,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:47:14,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:14,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:47:14,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:47:14,965 INFO L87 Difference]: Start difference. First operand 566 states and 904 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 14:47:15,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:15,053 INFO L93 Difference]: Finished difference Result 1690 states and 2704 transitions. [2022-10-16 14:47:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:47:15,054 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 14:47:15,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:15,060 INFO L225 Difference]: With dead ends: 1690 [2022-10-16 14:47:15,060 INFO L226 Difference]: Without dead ends: 1128 [2022-10-16 14:47:15,063 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 14:47:15,064 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 14:47:15,065 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 14:47:15,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-10-16 14:47:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1126. [2022-10-16 14:47:15,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1124 states have (on average 1.5871886120996441) internal successors, (1784), 1125 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:15,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1784 transitions. [2022-10-16 14:47:15,154 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1784 transitions. Word has length 36 [2022-10-16 14:47:15,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:15,155 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 1784 transitions. [2022-10-16 14:47:15,155 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 14:47:15,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1784 transitions. [2022-10-16 14:47:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:47:15,157 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:15,158 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 14:47:15,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:47:15,158 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 14:47:15,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1516532581, now seen corresponding path program 2 times [2022-10-16 14:47:15,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:15,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674075493] [2022-10-16 14:47:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,244 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 14:47:15,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:15,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674075493] [2022-10-16 14:47:15,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674075493] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:15,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:15,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:47:15,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190511122] [2022-10-16 14:47:15,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:15,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:47:15,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:15,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:47:15,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:15,246 INFO L87 Difference]: Start difference. First operand 1126 states and 1784 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 14:47:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:15,540 INFO L93 Difference]: Finished difference Result 3144 states and 4906 transitions. [2022-10-16 14:47:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:47:15,541 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 14:47:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:15,559 INFO L225 Difference]: With dead ends: 3144 [2022-10-16 14:47:15,559 INFO L226 Difference]: Without dead ends: 3143 [2022-10-16 14:47:15,561 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 14:47:15,564 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 150 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 14:47:15,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 150 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:47:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2022-10-16 14:47:15,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 1752. [2022-10-16 14:47:15,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1750 states have (on average 1.584) internal successors, (2772), 1751 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2772 transitions. [2022-10-16 14:47:15,745 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2772 transitions. Word has length 39 [2022-10-16 14:47:15,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:15,745 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 2772 transitions. [2022-10-16 14:47:15,746 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 14:47:15,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2772 transitions. [2022-10-16 14:47:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:47:15,749 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:15,749 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 14:47:15,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:47:15,750 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 14:47:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1373112855, now seen corresponding path program 2 times [2022-10-16 14:47:15,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:15,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126011268] [2022-10-16 14:47:15,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:15,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:15,904 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 14:47:15,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:15,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126011268] [2022-10-16 14:47:15,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126011268] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:15,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:15,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:47:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80258512] [2022-10-16 14:47:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:15,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:47:15,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:15,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:47:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:47:15,909 INFO L87 Difference]: Start difference. First operand 1752 states and 2772 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 14:47:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:16,309 INFO L93 Difference]: Finished difference Result 4868 states and 7628 transitions. [2022-10-16 14:47:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:47:16,310 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 14:47:16,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:16,337 INFO L225 Difference]: With dead ends: 4868 [2022-10-16 14:47:16,337 INFO L226 Difference]: Without dead ends: 4867 [2022-10-16 14:47:16,339 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 14:47:16,340 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 121 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:16,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 116 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4867 states. [2022-10-16 14:47:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4867 to 2774. [2022-10-16 14:47:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2772 states have (on average 1.5887445887445888) internal successors, (4404), 2773 states have internal predecessors, (4404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 4404 transitions. [2022-10-16 14:47:16,566 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 4404 transitions. Word has length 39 [2022-10-16 14:47:16,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:16,567 INFO L495 AbstractCegarLoop]: Abstraction has 2774 states and 4404 transitions. [2022-10-16 14:47:16,567 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 14:47:16,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 4404 transitions. [2022-10-16 14:47:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 14:47:16,571 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:16,571 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:16,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:47:16,572 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 14:47:16,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:16,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2129611174, now seen corresponding path program 1 times [2022-10-16 14:47:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:16,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220048165] [2022-10-16 14:47:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:16,763 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 14:47:16,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:16,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220048165] [2022-10-16 14:47:16,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220048165] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:16,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:16,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:47:16,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852389096] [2022-10-16 14:47:16,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:16,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:16,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:16,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:16,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:47:16,766 INFO L87 Difference]: Start difference. First operand 2774 states and 4404 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:17,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:17,499 INFO L93 Difference]: Finished difference Result 8393 states and 13196 transitions. [2022-10-16 14:47:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:47:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 14:47:17,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:17,545 INFO L225 Difference]: With dead ends: 8393 [2022-10-16 14:47:17,546 INFO L226 Difference]: Without dead ends: 8392 [2022-10-16 14:47:17,548 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 14:47:17,549 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 241 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:17,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 212 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2022-10-16 14:47:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 3796. [2022-10-16 14:47:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 3794 states have (on average 1.5909330521876648) internal successors, (6036), 3795 states have internal predecessors, (6036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 6036 transitions. [2022-10-16 14:47:17,927 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 6036 transitions. Word has length 40 [2022-10-16 14:47:17,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:17,927 INFO L495 AbstractCegarLoop]: Abstraction has 3796 states and 6036 transitions. [2022-10-16 14:47:17,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 6036 transitions. [2022-10-16 14:47:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:47:17,933 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:17,933 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:17,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:47:17,934 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 14:47:17,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:17,934 INFO L85 PathProgramCache]: Analyzing trace with hash 134572546, now seen corresponding path program 1 times [2022-10-16 14:47:17,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:17,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163809238] [2022-10-16 14:47:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:18,023 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 14:47:18,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:18,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163809238] [2022-10-16 14:47:18,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163809238] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:18,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232138654] [2022-10-16 14:47:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:18,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:18,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:18,025 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 14:47:18,028 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 14:47:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:18,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:47:18,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:18,254 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 14:47:18,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:18,431 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 14:47:18,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232138654] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:18,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:18,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 10, 10] total 23 [2022-10-16 14:47:18,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685106998] [2022-10-16 14:47:18,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:18,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:47:18,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:18,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:47:18,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:47:18,438 INFO L87 Difference]: Start difference. First operand 3796 states and 6036 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 14:47:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:24,677 INFO L93 Difference]: Finished difference Result 43643 states and 68538 transitions. [2022-10-16 14:47:24,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-10-16 14:47:24,678 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 14:47:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:24,830 INFO L225 Difference]: With dead ends: 43643 [2022-10-16 14:47:24,830 INFO L226 Difference]: Without dead ends: 39851 [2022-10-16 14:47:24,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6575 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4317, Invalid=12713, Unknown=0, NotChecked=0, Total=17030 [2022-10-16 14:47:24,858 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 6303 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6303 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:24,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6303 Valid, 1080 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:47:24,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39851 states. [2022-10-16 14:47:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39851 to 23814. [2022-10-16 14:47:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23814 states, 23812 states have (on average 1.5802536536200236) internal successors, (37629), 23813 states have internal predecessors, (37629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23814 states to 23814 states and 37629 transitions. [2022-10-16 14:47:27,440 INFO L78 Accepts]: Start accepts. Automaton has 23814 states and 37629 transitions. Word has length 41 [2022-10-16 14:47:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:27,441 INFO L495 AbstractCegarLoop]: Abstraction has 23814 states and 37629 transitions. [2022-10-16 14:47:27,441 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 14:47:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 23814 states and 37629 transitions. [2022-10-16 14:47:27,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 14:47:27,447 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:27,447 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:27,471 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 14:47:27,648 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 14:47:27,649 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 14:47:27,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:27,650 INFO L85 PathProgramCache]: Analyzing trace with hash 75322513, now seen corresponding path program 1 times [2022-10-16 14:47:27,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:27,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832212281] [2022-10-16 14:47:27,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:27,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:27,803 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 14:47:27,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:27,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832212281] [2022-10-16 14:47:27,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832212281] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:47:27,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:47:27,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:47:27,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57998253] [2022-10-16 14:47:27,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:47:27,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:47:27,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:47:27,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:47:27,806 INFO L87 Difference]: Start difference. First operand 23814 states and 37629 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:32,332 INFO L93 Difference]: Finished difference Result 64087 states and 100043 transitions. [2022-10-16 14:47:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:47:32,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 14:47:32,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:32,682 INFO L225 Difference]: With dead ends: 64087 [2022-10-16 14:47:32,683 INFO L226 Difference]: Without dead ends: 64086 [2022-10-16 14:47:32,703 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 14:47:32,704 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 268 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:32,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 184 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:47:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64086 states. [2022-10-16 14:47:35,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64086 to 28030. [2022-10-16 14:47:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28030 states, 28028 states have (on average 1.581953760525189) internal successors, (44339), 28029 states have internal predecessors, (44339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:35,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28030 states to 28030 states and 44339 transitions. [2022-10-16 14:47:35,138 INFO L78 Accepts]: Start accepts. Automaton has 28030 states and 44339 transitions. Word has length 42 [2022-10-16 14:47:35,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:35,138 INFO L495 AbstractCegarLoop]: Abstraction has 28030 states and 44339 transitions. [2022-10-16 14:47:35,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:35,139 INFO L276 IsEmpty]: Start isEmpty. Operand 28030 states and 44339 transitions. [2022-10-16 14:47:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 14:47:35,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:35,149 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:47:35,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:47:35,149 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 14:47:35,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash 35355659, now seen corresponding path program 1 times [2022-10-16 14:47:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:35,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482606183] [2022-10-16 14:47:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:35,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:35,294 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 14:47:35,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:35,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482606183] [2022-10-16 14:47:35,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482606183] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:35,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192679373] [2022-10-16 14:47:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:35,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:35,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:35,296 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 14:47:35,306 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 14:47:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:35,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:47:35,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:35,611 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 14:47:35,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:35,820 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 14:47:35,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192679373] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:35,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:35,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 26 [2022-10-16 14:47:35,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373641896] [2022-10-16 14:47:35,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:35,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 14:47:35,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:35,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 14:47:35,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:47:35,823 INFO L87 Difference]: Start difference. First operand 28030 states and 44339 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 14:47:43,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:47:43,188 INFO L93 Difference]: Finished difference Result 109856 states and 172859 transitions. [2022-10-16 14:47:43,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:47:43,189 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 14:47:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:47:43,405 INFO L225 Difference]: With dead ends: 109856 [2022-10-16 14:47:43,406 INFO L226 Difference]: Without dead ends: 81830 [2022-10-16 14:47:43,456 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 14:47:43,456 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2907 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:47:43,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2907 Valid, 1384 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:47:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81830 states. [2022-10-16 14:47:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81830 to 52658. [2022-10-16 14:47:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52658 states, 52656 states have (on average 1.510635065329687) internal successors, (79544), 52657 states have internal predecessors, (79544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:47:47,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52658 states to 52658 states and 79544 transitions. [2022-10-16 14:47:47,899 INFO L78 Accepts]: Start accepts. Automaton has 52658 states and 79544 transitions. Word has length 45 [2022-10-16 14:47:47,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:47:47,899 INFO L495 AbstractCegarLoop]: Abstraction has 52658 states and 79544 transitions. [2022-10-16 14:47:47,899 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 14:47:47,899 INFO L276 IsEmpty]: Start isEmpty. Operand 52658 states and 79544 transitions. [2022-10-16 14:47:47,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 14:47:47,944 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:47:47,944 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 14:47:47,986 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 14:47:48,158 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 14:47:48,158 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 14:47:48,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:47:48,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1081952079, now seen corresponding path program 1 times [2022-10-16 14:47:48,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:47:48,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638994102] [2022-10-16 14:47:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:48,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:47:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:48,345 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 14:47:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:48,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638994102] [2022-10-16 14:47:48,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638994102] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:48,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595354538] [2022-10-16 14:47:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:47:48,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:48,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:48,350 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 14:47:48,354 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 14:47:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:48,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:47:48,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:48,914 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 14:47:48,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:47:49,620 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 14:47:49,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595354538] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:47:49,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:47:49,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 22, 22] total 50 [2022-10-16 14:47:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022688028] [2022-10-16 14:47:49,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:47:49,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 14:47:49,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:47:49,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 14:47:49,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:47:49,625 INFO L87 Difference]: Start difference. First operand 52658 states and 79544 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 14:48:05,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:05,887 INFO L93 Difference]: Finished difference Result 187748 states and 278325 transitions. [2022-10-16 14:48:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-10-16 14:48:05,887 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 14:48:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:06,179 INFO L225 Difference]: With dead ends: 187748 [2022-10-16 14:48:06,180 INFO L226 Difference]: Without dead ends: 135094 [2022-10-16 14:48:06,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7270 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=6129, Invalid=19311, Unknown=0, NotChecked=0, Total=25440 [2022-10-16 14:48:06,272 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 9528 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9528 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:06,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9528 Valid, 2681 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:48:06,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135094 states. [2022-10-16 14:48:11,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135094 to 63407. [2022-10-16 14:48:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63407 states, 63405 states have (on average 1.4543490261020424) internal successors, (92213), 63406 states have internal predecessors, (92213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:11,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63407 states to 63407 states and 92213 transitions. [2022-10-16 14:48:11,219 INFO L78 Accepts]: Start accepts. Automaton has 63407 states and 92213 transitions. Word has length 92 [2022-10-16 14:48:11,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:11,219 INFO L495 AbstractCegarLoop]: Abstraction has 63407 states and 92213 transitions. [2022-10-16 14:48:11,219 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 14:48:11,219 INFO L276 IsEmpty]: Start isEmpty. Operand 63407 states and 92213 transitions. [2022-10-16 14:48:11,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 14:48:11,234 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:11,234 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:11,259 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 14:48:11,435 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 14:48:11,436 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 14:48:11,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:11,437 INFO L85 PathProgramCache]: Analyzing trace with hash 561040171, now seen corresponding path program 1 times [2022-10-16 14:48:11,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:11,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497686247] [2022-10-16 14:48:11,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:11,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:11,847 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 14:48:11,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:11,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497686247] [2022-10-16 14:48:11,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497686247] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:48:11,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:48:11,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:48:11,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404014204] [2022-10-16 14:48:11,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:48:11,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:48:11,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:11,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:48:11,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:48:11,851 INFO L87 Difference]: Start difference. First operand 63407 states and 92213 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:22,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:48:22,261 INFO L93 Difference]: Finished difference Result 155061 states and 225120 transitions. [2022-10-16 14:48:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:48:22,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-10-16 14:48:22,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:48:22,556 INFO L225 Difference]: With dead ends: 155061 [2022-10-16 14:48:22,557 INFO L226 Difference]: Without dead ends: 155060 [2022-10-16 14:48:22,825 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 14:48:22,826 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 263 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:48:22,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 209 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:48:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155060 states. [2022-10-16 14:48:27,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155060 to 63407. [2022-10-16 14:48:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63407 states, 63405 states have (on average 1.4543490261020424) internal successors, (92213), 63406 states have internal predecessors, (92213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63407 states to 63407 states and 92213 transitions. [2022-10-16 14:48:28,123 INFO L78 Accepts]: Start accepts. Automaton has 63407 states and 92213 transitions. Word has length 99 [2022-10-16 14:48:28,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:48:28,124 INFO L495 AbstractCegarLoop]: Abstraction has 63407 states and 92213 transitions. [2022-10-16 14:48:28,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:48:28,124 INFO L276 IsEmpty]: Start isEmpty. Operand 63407 states and 92213 transitions. [2022-10-16 14:48:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 14:48:28,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:48:28,138 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:48:28,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:48:28,139 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:48:28,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:48:28,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2007548123, now seen corresponding path program 1 times [2022-10-16 14:48:28,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:48:28,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625413813] [2022-10-16 14:48:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:28,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:48:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 208 proven. 1 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-10-16 14:48:28,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:48:28,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625413813] [2022-10-16 14:48:28,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625413813] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:48:28,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72422842] [2022-10-16 14:48:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:48:28,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:48:28,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:48:28,374 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:48:28,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:48:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:48:28,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:48:28,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:48:28,869 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 14:48:28,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:48:29,531 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:48:29,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72422842] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:48:29,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:48:29,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 22, 22] total 51 [2022-10-16 14:48:29,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408968621] [2022-10-16 14:48:29,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:48:29,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 14:48:29,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:48:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 14:48:29,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=1987, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:48:29,534 INFO L87 Difference]: Start difference. First operand 63407 states and 92213 transitions. Second operand has 51 states, 51 states have (on average 4.7254901960784315) internal successors, (241), 51 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:22,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:22,773 INFO L93 Difference]: Finished difference Result 522892 states and 762177 transitions. [2022-10-16 14:49:22,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-10-16 14:49:22,774 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.7254901960784315) internal successors, (241), 51 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-10-16 14:49:22,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:23,819 INFO L225 Difference]: With dead ends: 522892 [2022-10-16 14:49:23,819 INFO L226 Difference]: Without dead ends: 459489 [2022-10-16 14:49:24,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38006 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=17563, Invalid=78227, Unknown=0, NotChecked=0, Total=95790 [2022-10-16 14:49:24,053 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 18438 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 1799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18438 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1799 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:24,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18438 Valid, 3182 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1799 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 14:49:24,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459489 states. [2022-10-16 14:49:43,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459489 to 217029. [2022-10-16 14:49:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217029 states, 217027 states have (on average 1.4396227197537634) internal successors, (312437), 217028 states have internal predecessors, (312437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217029 states to 217029 states and 312437 transitions. [2022-10-16 14:49:44,296 INFO L78 Accepts]: Start accepts. Automaton has 217029 states and 312437 transitions. Word has length 101 [2022-10-16 14:49:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:44,297 INFO L495 AbstractCegarLoop]: Abstraction has 217029 states and 312437 transitions. [2022-10-16 14:49:44,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.7254901960784315) internal successors, (241), 51 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:49:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 217029 states and 312437 transitions. [2022-10-16 14:49:44,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-10-16 14:49:44,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:44,433 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 14:49:44,461 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 14:49:44,647 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 14:49:44,648 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 14:49:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:44,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1803068067, now seen corresponding path program 1 times [2022-10-16 14:49:44,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:44,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066781850] [2022-10-16 14:49:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:44,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,511 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 14:49:45,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:45,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066781850] [2022-10-16 14:49:45,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066781850] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:45,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:45,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:49:45,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363909357] [2022-10-16 14:49:45,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:45,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:49:45,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:45,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:49:45,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:49:45,514 INFO L87 Difference]: Start difference. First operand 217029 states and 312437 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)