/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-industry-pattern/check_removal_from_set_after_insertion.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:25:45,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:25:45,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:25:45,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:25:45,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:25:45,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:25:45,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:25:45,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:25:45,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:25:45,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:25:45,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:25:45,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:25:45,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:25:45,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:25:45,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:25:45,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:25:45,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:25:45,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:25:45,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:25:45,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:25:45,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:25:45,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:25:45,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:25:45,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:25:45,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:25:45,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:25:45,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:25:45,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:25:45,213 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 [2022-10-15 20:25:45,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:25:45,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:25:45,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:25:45,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:25:45,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:25:45,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:25:45,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:25:45,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:25:45,246 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:25:45,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:25:45,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:25:45,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:25:45,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:25:45,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:25:45,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:25:45,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:25:45,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:25:45,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:25:45,248 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:25:45,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:25:45,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:25:45,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:25:45,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:25:45,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:25:45,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:25:45,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:25:45,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:25:45,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:25:45,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:25:45,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:25:45,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:25:45,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:25:45,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:25:45,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:25:45,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:25:45,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:25:45,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:25:45,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:25:45,648 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:25:45,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/check_removal_from_set_after_insertion.c [2022-10-15 20:25:45,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8473aa719/994accaa012c40d3a76c951593261470/FLAG73f3d865f [2022-10-15 20:25:46,337 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:25:46,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/check_removal_from_set_after_insertion.c [2022-10-15 20:25:46,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8473aa719/994accaa012c40d3a76c951593261470/FLAG73f3d865f [2022-10-15 20:25:46,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8473aa719/994accaa012c40d3a76c951593261470 [2022-10-15 20:25:46,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:25:46,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:25:46,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:25:46,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:25:46,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:25:46,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:25:46" (1/1) ... [2022-10-15 20:25:46,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8072eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:46, skipping insertion in model container [2022-10-15 20:25:46,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:25:46" (1/1) ... [2022-10-15 20:25:46,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:25:46,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:25:46,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/check_removal_from_set_after_insertion.c[342,355] [2022-10-15 20:25:46,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:25:47,002 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:25:47,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/check_removal_from_set_after_insertion.c[342,355] [2022-10-15 20:25:47,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:25:47,048 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:25:47,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47 WrapperNode [2022-10-15 20:25:47,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:25:47,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:25:47,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:25:47,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:25:47,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,098 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 151 [2022-10-15 20:25:47,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:25:47,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:25:47,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:25:47,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:25:47,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:25:47,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:25:47,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:25:47,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:25:47,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (1/1) ... [2022-10-15 20:25:47,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:25:47,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:47,173 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) [2022-10-15 20:25:47,197 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 [2022-10-15 20:25:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:25:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:25:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:25:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:25:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:25:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:25:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:25:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:25:47,348 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:25:47,350 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:25:47,823 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:25:47,831 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:25:47,832 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-15 20:25:47,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:25:47 BoogieIcfgContainer [2022-10-15 20:25:47,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:25:47,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:25:47,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:25:47,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:25:47,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:25:46" (1/3) ... [2022-10-15 20:25:47,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c9b520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:25:47, skipping insertion in model container [2022-10-15 20:25:47,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:25:47" (2/3) ... [2022-10-15 20:25:47,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c9b520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:25:47, skipping insertion in model container [2022-10-15 20:25:47,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:25:47" (3/3) ... [2022-10-15 20:25:47,845 INFO L112 eAbstractionObserver]: Analyzing ICFG check_removal_from_set_after_insertion.c [2022-10-15 20:25:47,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:25:47,895 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-15 20:25:48,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:25:48,032 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;@364a73b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:25:48,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-15 20:25:48,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 50 states have (on average 1.76) internal successors, (88), 70 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:48,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:25:48,048 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:48,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:25:48,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:48,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:48,055 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:25:48,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:48,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275319867] [2022-10-15 20:25:48,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:48,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:48,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:48,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275319867] [2022-10-15 20:25:48,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275319867] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:48,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:48,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:25:48,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244519457] [2022-10-15 20:25:48,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:48,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:48,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:48,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:48,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:48,517 INFO L87 Difference]: Start difference. First operand has 71 states, 50 states have (on average 1.76) internal successors, (88), 70 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:48,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:48,636 INFO L93 Difference]: Finished difference Result 189 states and 236 transitions. [2022-10-15 20:25:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:48,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 20:25:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:48,653 INFO L225 Difference]: With dead ends: 189 [2022-10-15 20:25:48,653 INFO L226 Difference]: Without dead ends: 114 [2022-10-15 20:25:48,657 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 [2022-10-15 20:25:48,662 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 56 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:48,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 191 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-15 20:25:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 70. [2022-10-15 20:25:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 50 states have (on average 1.6) internal successors, (80), 69 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:48,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2022-10-15 20:25:48,730 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 5 [2022-10-15 20:25:48,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:48,731 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2022-10-15 20:25:48,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2022-10-15 20:25:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:25:48,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:48,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:48,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:25:48,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:48,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:48,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1896886123, now seen corresponding path program 1 times [2022-10-15 20:25:48,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:48,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948137939] [2022-10-15 20:25:48,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:48,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:48,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:48,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948137939] [2022-10-15 20:25:48,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948137939] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:48,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:48,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:25:48,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519065779] [2022-10-15 20:25:48,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:48,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:48,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:48,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:48,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:48,931 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:49,066 INFO L93 Difference]: Finished difference Result 146 states and 170 transitions. [2022-10-15 20:25:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:49,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 20:25:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:49,070 INFO L225 Difference]: With dead ends: 146 [2022-10-15 20:25:49,071 INFO L226 Difference]: Without dead ends: 88 [2022-10-15 20:25:49,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:49,077 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 121 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:49,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 93 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:49,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-15 20:25:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 68. [2022-10-15 20:25:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.54) internal successors, (77), 67 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2022-10-15 20:25:49,109 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 9 [2022-10-15 20:25:49,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:49,109 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2022-10-15 20:25:49,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2022-10-15 20:25:49,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:25:49,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:49,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:25:49,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:25:49,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:25:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:49,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545918554] [2022-10-15 20:25:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:49,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:49,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:49,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545918554] [2022-10-15 20:25:49,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545918554] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:49,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935144993] [2022-10-15 20:25:49,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:49,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:49,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:49,292 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) [2022-10-15 20:25:49,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:25:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:49,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:25:49,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:49,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:25:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:49,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935144993] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:25:49,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:25:49,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 20:25:49,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114159470] [2022-10-15 20:25:49,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:25:49,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 20:25:49,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:49,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 20:25:49,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:25:49,512 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:49,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:49,714 INFO L93 Difference]: Finished difference Result 173 states and 202 transitions. [2022-10-15 20:25:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 20:25:49,715 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 20:25:49,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:49,719 INFO L225 Difference]: With dead ends: 173 [2022-10-15 20:25:49,719 INFO L226 Difference]: Without dead ends: 172 [2022-10-15 20:25:49,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-15 20:25:49,721 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 254 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:49,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 299 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:49,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-15 20:25:49,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 79. [2022-10-15 20:25:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 78 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:49,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2022-10-15 20:25:49,737 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 9 [2022-10-15 20:25:49,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:49,738 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2022-10-15 20:25:49,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:49,738 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2022-10-15 20:25:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:25:49,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:49,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:25:49,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:49,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:49,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:49,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:49,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:25:49,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:49,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305120498] [2022-10-15 20:25:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:49,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:50,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:50,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305120498] [2022-10-15 20:25:50,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305120498] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:50,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287694068] [2022-10-15 20:25:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:50,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:50,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:50,148 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) [2022-10-15 20:25:50,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:25:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:50,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:25:50,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:50,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:25:50,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287694068] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:50,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:25:50,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:25:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124100708] [2022-10-15 20:25:50,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:50,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:25:50,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:50,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:25:50,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:25:50,271 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:50,364 INFO L93 Difference]: Finished difference Result 99 states and 116 transitions. [2022-10-15 20:25:50,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:25:50,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:25:50,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:50,367 INFO L225 Difference]: With dead ends: 99 [2022-10-15 20:25:50,367 INFO L226 Difference]: Without dead ends: 98 [2022-10-15 20:25:50,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:25:50,372 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 52 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:50,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 218 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:50,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-15 20:25:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 78. [2022-10-15 20:25:50,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 77 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2022-10-15 20:25:50,403 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 10 [2022-10-15 20:25:50,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:50,403 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2022-10-15 20:25:50,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,404 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2022-10-15 20:25:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 20:25:50,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:50,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:50,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:50,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 20:25:50,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:50,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:50,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1705622767, now seen corresponding path program 1 times [2022-10-15 20:25:50,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:50,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568662867] [2022-10-15 20:25:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:25:50,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:50,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568662867] [2022-10-15 20:25:50,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568662867] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:50,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:50,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:25:50,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73747476] [2022-10-15 20:25:50,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:50,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:50,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:50,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:50,733 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:50,780 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2022-10-15 20:25:50,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:50,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 20:25:50,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:50,782 INFO L225 Difference]: With dead ends: 133 [2022-10-15 20:25:50,783 INFO L226 Difference]: Without dead ends: 99 [2022-10-15 20:25:50,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:50,791 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:50,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 105 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-15 20:25:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 79. [2022-10-15 20:25:50,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 62 states have (on average 1.467741935483871) internal successors, (91), 78 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2022-10-15 20:25:50,811 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 13 [2022-10-15 20:25:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:50,811 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2022-10-15 20:25:50,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2022-10-15 20:25:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 20:25:50,813 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:50,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:50,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:25:50,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:50,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1704947057, now seen corresponding path program 1 times [2022-10-15 20:25:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:50,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984441233] [2022-10-15 20:25:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:25:50,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:50,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984441233] [2022-10-15 20:25:50,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984441233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:50,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:50,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:25:50,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815089952] [2022-10-15 20:25:50,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:50,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:50,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:50,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:50,931 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:50,965 INFO L93 Difference]: Finished difference Result 223 states and 255 transitions. [2022-10-15 20:25:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 20:25:50,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 20:25:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:50,967 INFO L225 Difference]: With dead ends: 223 [2022-10-15 20:25:50,968 INFO L226 Difference]: Without dead ends: 168 [2022-10-15 20:25:50,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:25:50,969 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 153 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:50,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 197 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-10-15 20:25:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 87. [2022-10-15 20:25:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 86 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2022-10-15 20:25:50,980 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 13 [2022-10-15 20:25:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:50,980 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2022-10-15 20:25:50,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:50,981 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2022-10-15 20:25:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:25:50,981 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:50,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:50,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:25:50,982 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:50,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:50,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1315290308, now seen corresponding path program 1 times [2022-10-15 20:25:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:50,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922158030] [2022-10-15 20:25:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:50,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:25:51,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:51,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922158030] [2022-10-15 20:25:51,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922158030] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:51,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:51,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:25:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859533497] [2022-10-15 20:25:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:51,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:51,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:51,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:51,071 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:51,104 INFO L93 Difference]: Finished difference Result 178 states and 204 transitions. [2022-10-15 20:25:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 20:25:51,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-15 20:25:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:51,106 INFO L225 Difference]: With dead ends: 178 [2022-10-15 20:25:51,106 INFO L226 Difference]: Without dead ends: 176 [2022-10-15 20:25:51,106 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 [2022-10-15 20:25:51,110 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 109 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:51,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 245 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:51,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-15 20:25:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 89. [2022-10-15 20:25:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 88 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 105 transitions. [2022-10-15 20:25:51,125 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 105 transitions. Word has length 14 [2022-10-15 20:25:51,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:51,126 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 105 transitions. [2022-10-15 20:25:51,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 105 transitions. [2022-10-15 20:25:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:25:51,127 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:51,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:51,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 20:25:51,127 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2119285850, now seen corresponding path program 1 times [2022-10-15 20:25:51,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:51,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819662227] [2022-10-15 20:25:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:51,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:25:51,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:51,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819662227] [2022-10-15 20:25:51,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819662227] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:51,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:51,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:25:51,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709530086] [2022-10-15 20:25:51,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:51,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:51,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:51,180 INFO L87 Difference]: Start difference. First operand 89 states and 105 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:51,207 INFO L93 Difference]: Finished difference Result 197 states and 228 transitions. [2022-10-15 20:25:51,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:51,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 20:25:51,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:51,208 INFO L225 Difference]: With dead ends: 197 [2022-10-15 20:25:51,209 INFO L226 Difference]: Without dead ends: 132 [2022-10-15 20:25:51,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:25:51,210 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 50 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:51,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 208 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-15 20:25:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2022-10-15 20:25:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 86 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2022-10-15 20:25:51,220 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 15 [2022-10-15 20:25:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:51,220 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2022-10-15 20:25:51,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2022-10-15 20:25:51,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 20:25:51,221 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:51,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:51,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 20:25:51,222 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:51,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:51,222 INFO L85 PathProgramCache]: Analyzing trace with hash 137925632, now seen corresponding path program 1 times [2022-10-15 20:25:51,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:51,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539316964] [2022-10-15 20:25:51,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:51,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:25:51,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:51,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539316964] [2022-10-15 20:25:51,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539316964] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:51,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:51,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:25:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264241883] [2022-10-15 20:25:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:51,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:51,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:51,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:51,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:51,285 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:51,319 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2022-10-15 20:25:51,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:51,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-15 20:25:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:51,321 INFO L225 Difference]: With dead ends: 93 [2022-10-15 20:25:51,321 INFO L226 Difference]: Without dead ends: 91 [2022-10-15 20:25:51,321 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 [2022-10-15 20:25:51,322 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 3 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:51,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 196 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-15 20:25:51,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-10-15 20:25:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 90 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2022-10-15 20:25:51,332 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 18 [2022-10-15 20:25:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:51,332 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2022-10-15 20:25:51,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:51,333 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2022-10-15 20:25:51,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 20:25:51,334 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:51,334 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1] [2022-10-15 20:25:51,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 20:25:51,334 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:51,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:51,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175080, now seen corresponding path program 2 times [2022-10-15 20:25:51,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:51,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302042024] [2022-10-15 20:25:51,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:51,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:51,560 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:25:51,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:51,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302042024] [2022-10-15 20:25:51,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302042024] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:51,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176646204] [2022-10-15 20:25:51,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:25:51,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:51,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:51,564 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) [2022-10-15 20:25:51,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:25:51,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:25:51,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:25:51,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:25:51,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-15 20:25:51,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:25:51,783 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-15 20:25:51,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176646204] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:25:51,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:25:51,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 17 [2022-10-15 20:25:51,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96254303] [2022-10-15 20:25:51,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:25:51,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:25:51,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:51,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:25:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:25:51,786 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:52,132 INFO L93 Difference]: Finished difference Result 296 states and 335 transitions. [2022-10-15 20:25:52,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 20:25:52,133 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-15 20:25:52,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:52,135 INFO L225 Difference]: With dead ends: 296 [2022-10-15 20:25:52,135 INFO L226 Difference]: Without dead ends: 292 [2022-10-15 20:25:52,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-15 20:25:52,137 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 687 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:52,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 358 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-10-15 20:25:52,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 73. [2022-10-15 20:25:52,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 72 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2022-10-15 20:25:52,149 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 21 [2022-10-15 20:25:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:52,149 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2022-10-15 20:25:52,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2022-10-15 20:25:52,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:25:52,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:52,151 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:52,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:52,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:52,366 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:52,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash -965830275, now seen corresponding path program 1 times [2022-10-15 20:25:52,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:52,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582714016] [2022-10-15 20:25:52,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:25:52,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:52,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582714016] [2022-10-15 20:25:52,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582714016] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:52,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:52,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:25:52,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040955801] [2022-10-15 20:25:52,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:52,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:52,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:52,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:52,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:52,455 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:52,489 INFO L93 Difference]: Finished difference Result 127 states and 144 transitions. [2022-10-15 20:25:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:52,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-15 20:25:52,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:52,492 INFO L225 Difference]: With dead ends: 127 [2022-10-15 20:25:52,492 INFO L226 Difference]: Without dead ends: 125 [2022-10-15 20:25:52,492 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 [2022-10-15 20:25:52,493 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 55 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:52,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 187 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:52,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-10-15 20:25:52,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 78. [2022-10-15 20:25:52,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 77 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2022-10-15 20:25:52,506 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 24 [2022-10-15 20:25:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:52,506 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2022-10-15 20:25:52,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2022-10-15 20:25:52,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 20:25:52,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:52,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:52,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 20:25:52,508 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash 103131321, now seen corresponding path program 1 times [2022-10-15 20:25:52,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:52,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915847051] [2022-10-15 20:25:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:25:52,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:52,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915847051] [2022-10-15 20:25:52,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915847051] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:52,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:52,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:25:52,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369416306] [2022-10-15 20:25:52,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:52,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:52,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:52,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:52,570 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:52,646 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2022-10-15 20:25:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:52,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-15 20:25:52,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:52,648 INFO L225 Difference]: With dead ends: 100 [2022-10-15 20:25:52,648 INFO L226 Difference]: Without dead ends: 98 [2022-10-15 20:25:52,648 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 [2022-10-15 20:25:52,649 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 18 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:52,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 158 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-15 20:25:52,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 83. [2022-10-15 20:25:52,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 82 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2022-10-15 20:25:52,661 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 25 [2022-10-15 20:25:52,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:52,662 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2022-10-15 20:25:52,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:52,662 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2022-10-15 20:25:52,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 20:25:52,663 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:52,663 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:52,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 20:25:52,664 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:52,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:52,664 INFO L85 PathProgramCache]: Analyzing trace with hash 122493454, now seen corresponding path program 1 times [2022-10-15 20:25:52,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:52,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727827576] [2022-10-15 20:25:52,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:52,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:25:52,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:52,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727827576] [2022-10-15 20:25:52,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727827576] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:52,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24238013] [2022-10-15 20:25:52,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:52,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:52,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:52,759 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) [2022-10-15 20:25:52,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:25:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:52,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:25:52,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:25:52,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:25:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:25:52,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24238013] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:25:52,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:25:52,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-15 20:25:52,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421284254] [2022-10-15 20:25:52,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:25:52,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 20:25:52,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 20:25:52,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-10-15 20:25:52,973 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:53,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:53,122 INFO L93 Difference]: Finished difference Result 179 states and 207 transitions. [2022-10-15 20:25:53,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 20:25:53,122 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-15 20:25:53,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:53,123 INFO L225 Difference]: With dead ends: 179 [2022-10-15 20:25:53,123 INFO L226 Difference]: Without dead ends: 103 [2022-10-15 20:25:53,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2022-10-15 20:25:53,125 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 128 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:53,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 231 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:53,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-15 20:25:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 91. [2022-10-15 20:25:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.3333333333333333) internal successors, (104), 90 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:53,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2022-10-15 20:25:53,138 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 25 [2022-10-15 20:25:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:53,138 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2022-10-15 20:25:53,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2022-10-15 20:25:53,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-15 20:25:53,140 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:53,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:53,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:53,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:53,354 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:53,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash -777555706, now seen corresponding path program 2 times [2022-10-15 20:25:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:53,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365121043] [2022-10-15 20:25:53,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:53,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:25:53,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:53,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365121043] [2022-10-15 20:25:53,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365121043] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:53,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223330807] [2022-10-15 20:25:53,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:25:53,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:53,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:53,529 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) [2022-10-15 20:25:53,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:25:53,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:25:53,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:25:53,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 20:25:53,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:25:53,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:25:53,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223330807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:53,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:25:53,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 13 [2022-10-15 20:25:53,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319117838] [2022-10-15 20:25:53,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:53,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 20:25:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:53,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 20:25:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-10-15 20:25:53,639 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:53,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:53,731 INFO L93 Difference]: Finished difference Result 254 states and 295 transitions. [2022-10-15 20:25:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:25:53,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-15 20:25:53,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:53,751 INFO L225 Difference]: With dead ends: 254 [2022-10-15 20:25:53,751 INFO L226 Difference]: Without dead ends: 253 [2022-10-15 20:25:53,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-10-15 20:25:53,752 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 192 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:53,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 357 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-10-15 20:25:53,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 95. [2022-10-15 20:25:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 94 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2022-10-15 20:25:53,771 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 33 [2022-10-15 20:25:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:53,771 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2022-10-15 20:25:53,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2022-10-15 20:25:53,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-15 20:25:53,774 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:53,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:53,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:53,988 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,SelfDestructingSolverStorable13 [2022-10-15 20:25:53,989 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:53,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:53,990 INFO L85 PathProgramCache]: Analyzing trace with hash -776066156, now seen corresponding path program 1 times [2022-10-15 20:25:53,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:53,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062262395] [2022-10-15 20:25:53,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:53,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 20:25:54,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:54,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062262395] [2022-10-15 20:25:54,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062262395] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:54,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:25:54,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:25:54,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616059360] [2022-10-15 20:25:54,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:54,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:25:54,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:54,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:25:54,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:25:54,064 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:54,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:54,096 INFO L93 Difference]: Finished difference Result 205 states and 237 transitions. [2022-10-15 20:25:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:25:54,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-15 20:25:54,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:54,098 INFO L225 Difference]: With dead ends: 205 [2022-10-15 20:25:54,098 INFO L226 Difference]: Without dead ends: 137 [2022-10-15 20:25:54,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:25:54,099 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 42 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:54,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 274 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:54,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-10-15 20:25:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 95. [2022-10-15 20:25:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 94 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2022-10-15 20:25:54,113 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 33 [2022-10-15 20:25:54,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:54,113 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2022-10-15 20:25:54,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:54,114 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2022-10-15 20:25:54,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 20:25:54,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:54,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:54,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 20:25:54,115 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1665576980, now seen corresponding path program 1 times [2022-10-15 20:25:54,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:54,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849963870] [2022-10-15 20:25:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:54,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:25:54,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:54,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849963870] [2022-10-15 20:25:54,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849963870] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:54,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524388336] [2022-10-15 20:25:54,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:54,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:54,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:54,319 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) [2022-10-15 20:25:54,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:25:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:54,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 20:25:54,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:25:54,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:25:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:25:54,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524388336] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:25:54,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:25:54,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2022-10-15 20:25:54,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840784748] [2022-10-15 20:25:54,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:25:54,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-15 20:25:54,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:54,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-15 20:25:54,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-10-15 20:25:54,629 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:54,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:54,921 INFO L93 Difference]: Finished difference Result 203 states and 231 transitions. [2022-10-15 20:25:54,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 20:25:54,922 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 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 34 [2022-10-15 20:25:54,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:54,923 INFO L225 Difference]: With dead ends: 203 [2022-10-15 20:25:54,923 INFO L226 Difference]: Without dead ends: 123 [2022-10-15 20:25:54,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=324, Invalid=798, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 20:25:54,924 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 286 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:54,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 267 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:25:54,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-15 20:25:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 111. [2022-10-15 20:25:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 110 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) [2022-10-15 20:25:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2022-10-15 20:25:54,941 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 34 [2022-10-15 20:25:54,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:54,941 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2022-10-15 20:25:54,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:54,942 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2022-10-15 20:25:54,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-15 20:25:54,943 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:54,943 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:54,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:55,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 20:25:55,159 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:55,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1434593316, now seen corresponding path program 2 times [2022-10-15 20:25:55,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:55,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331775386] [2022-10-15 20:25:55,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:25:55,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:55,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331775386] [2022-10-15 20:25:55,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331775386] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:55,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062660557] [2022-10-15 20:25:55,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:25:55,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:55,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:55,585 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) [2022-10-15 20:25:55,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:25:55,705 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:25:55,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:25:55,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-15 20:25:55,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:25:56,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:25:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:25:56,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062660557] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:25:56,401 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:25:56,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 48 [2022-10-15 20:25:56,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105397938] [2022-10-15 20:25:56,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:25:56,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-15 20:25:56,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:56,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-15 20:25:56,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=580, Invalid=1772, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 20:25:56,404 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand has 49 states, 49 states have (on average 2.142857142857143) internal successors, (105), 48 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:57,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:57,091 INFO L93 Difference]: Finished difference Result 235 states and 267 transitions. [2022-10-15 20:25:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-15 20:25:57,092 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.142857142857143) internal successors, (105), 48 states have internal predecessors, (105), 0 states have call successors, (0), 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 50 [2022-10-15 20:25:57,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:57,093 INFO L225 Difference]: With dead ends: 235 [2022-10-15 20:25:57,093 INFO L226 Difference]: Without dead ends: 155 [2022-10-15 20:25:57,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1825 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1246, Invalid=3584, Unknown=0, NotChecked=0, Total=4830 [2022-10-15 20:25:57,097 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 272 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:57,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 554 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:25:57,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-15 20:25:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 143. [2022-10-15 20:25:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 142 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 155 transitions. [2022-10-15 20:25:57,115 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 155 transitions. Word has length 50 [2022-10-15 20:25:57,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:57,115 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 155 transitions. [2022-10-15 20:25:57,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.142857142857143) internal successors, (105), 48 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:57,115 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 155 transitions. [2022-10-15 20:25:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 20:25:57,116 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:57,117 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:57,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:57,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:57,332 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:57,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:57,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1614985284, now seen corresponding path program 3 times [2022-10-15 20:25:57,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:57,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551887270] [2022-10-15 20:25:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:57,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:25:58,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:58,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551887270] [2022-10-15 20:25:58,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551887270] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:58,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105249450] [2022-10-15 20:25:58,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:25:58,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:58,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:58,673 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) [2022-10-15 20:25:58,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:25:58,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:25:58,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:25:58,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 20:25:58,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:25:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:25:58,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:25:58,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105249450] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:25:58,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:25:58,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 37 [2022-10-15 20:25:58,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704895365] [2022-10-15 20:25:58,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:25:58,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 20:25:58,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:25:58,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 20:25:58,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2022-10-15 20:25:58,883 INFO L87 Difference]: Start difference. First operand 143 states and 155 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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) [2022-10-15 20:25:58,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:25:58,954 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2022-10-15 20:25:58,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 20:25:58,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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 82 [2022-10-15 20:25:58,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:25:58,956 INFO L225 Difference]: With dead ends: 143 [2022-10-15 20:25:58,956 INFO L226 Difference]: Without dead ends: 142 [2022-10-15 20:25:58,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=308, Invalid=1174, Unknown=0, NotChecked=0, Total=1482 [2022-10-15 20:25:58,958 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 167 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:25:58,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 87 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:25:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-15 20:25:58,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-10-15 20:25:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 130 states have (on average 1.1846153846153846) internal successors, (154), 141 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:25:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 154 transitions. [2022-10-15 20:25:58,975 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 154 transitions. Word has length 82 [2022-10-15 20:25:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:25:58,976 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 154 transitions. [2022-10-15 20:25:58,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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) [2022-10-15 20:25:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 154 transitions. [2022-10-15 20:25:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 20:25:58,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:25:58,977 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:25:59,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:25:59,191 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,SelfDestructingSolverStorable17 [2022-10-15 20:25:59,192 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:25:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:25:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1661169278, now seen corresponding path program 1 times [2022-10-15 20:25:59,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:25:59,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443551263] [2022-10-15 20:25:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:25:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:25:59,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:25:59,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443551263] [2022-10-15 20:25:59,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443551263] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:25:59,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166627806] [2022-10-15 20:25:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:25:59,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:25:59,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:25:59,393 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:25:59,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:25:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:25:59,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-15 20:25:59,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:26:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:26:00,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:26:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:26:01,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166627806] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:26:01,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:26:01,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 70 [2022-10-15 20:26:01,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069442282] [2022-10-15 20:26:01,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:26:01,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-10-15 20:26:01,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:26:01,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-10-15 20:26:01,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1133, Invalid=3697, Unknown=0, NotChecked=0, Total=4830 [2022-10-15 20:26:01,061 INFO L87 Difference]: Start difference. First operand 142 states and 154 transitions. Second operand has 70 states, 70 states have (on average 2.4) internal successors, (168), 70 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:26:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:26:03,138 INFO L93 Difference]: Finished difference Result 327 states and 373 transitions. [2022-10-15 20:26:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-10-15 20:26:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.4) internal successors, (168), 70 states have internal predecessors, (168), 0 states have call successors, (0), 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 82 [2022-10-15 20:26:03,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:26:03,141 INFO L225 Difference]: With dead ends: 327 [2022-10-15 20:26:03,142 INFO L226 Difference]: Without dead ends: 248 [2022-10-15 20:26:03,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4487 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3585, Invalid=10695, Unknown=0, NotChecked=0, Total=14280 [2022-10-15 20:26:03,152 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 437 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:26:03,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 466 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:26:03,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-10-15 20:26:03,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-10-15 20:26:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 219 states have (on average 1.1415525114155252) internal successors, (250), 230 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:26:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 250 transitions. [2022-10-15 20:26:03,191 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 250 transitions. Word has length 82 [2022-10-15 20:26:03,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:26:03,191 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 250 transitions. [2022-10-15 20:26:03,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.4) internal successors, (168), 70 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:26:03,192 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 250 transitions. [2022-10-15 20:26:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-15 20:26:03,194 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:26:03,194 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:26:03,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:26:03,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:26:03,408 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:26:03,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:26:03,409 INFO L85 PathProgramCache]: Analyzing trace with hash 481741158, now seen corresponding path program 1 times [2022-10-15 20:26:03,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:26:03,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131984966] [2022-10-15 20:26:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:26:03,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:26:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:26:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:26:07,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:26:07,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131984966] [2022-10-15 20:26:07,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131984966] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:26:07,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469927803] [2022-10-15 20:26:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:26:07,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:26:07,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:26:07,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:26:07,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 20:26:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:26:07,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 65 conjunts are in the unsatisfiable core [2022-10-15 20:26:07,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:26:09,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:26:09,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:26:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:26:14,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469927803] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:26:14,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:26:14,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 192 [2022-10-15 20:26:14,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106245185] [2022-10-15 20:26:14,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:26:14,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-10-15 20:26:14,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:26:14,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-10-15 20:26:14,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8452, Invalid=28604, Unknown=0, NotChecked=0, Total=37056 [2022-10-15 20:26:14,340 INFO L87 Difference]: Start difference. First operand 231 states and 250 transitions. Second operand has 193 states, 193 states have (on average 2.051813471502591) internal successors, (396), 192 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:26:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:26:20,587 INFO L93 Difference]: Finished difference Result 475 states and 545 transitions. [2022-10-15 20:26:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-15 20:26:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 2.051813471502591) internal successors, (396), 192 states have internal predecessors, (396), 0 states have call successors, (0), 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 147 [2022-10-15 20:26:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:26:20,590 INFO L225 Difference]: With dead ends: 475 [2022-10-15 20:26:20,590 INFO L226 Difference]: Without dead ends: 371 [2022-10-15 20:26:20,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33757 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=19210, Invalid=62300, Unknown=0, NotChecked=0, Total=81510 [2022-10-15 20:26:20,599 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 919 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 20:26:20,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 474 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 20:26:20,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-10-15 20:26:20,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 359. [2022-10-15 20:26:20,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 347 states have (on average 1.0893371757925072) internal successors, (378), 358 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:26:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 378 transitions. [2022-10-15 20:26:20,637 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 378 transitions. Word has length 147 [2022-10-15 20:26:20,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:26:20,637 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 378 transitions. [2022-10-15 20:26:20,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 2.051813471502591) internal successors, (396), 192 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:26:20,638 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 378 transitions. [2022-10-15 20:26:20,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-10-15 20:26:20,640 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:26:20,641 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:26:20,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 20:26:20,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:26:20,856 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:26:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:26:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash 905287910, now seen corresponding path program 2 times [2022-10-15 20:26:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:26:20,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847845499] [2022-10-15 20:26:20,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:26:20,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:26:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:26:34,084 INFO L134 CoverageAnalysis]: Checked inductivity of 7882 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:26:34,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:26:34,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847845499] [2022-10-15 20:26:34,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847845499] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:26:34,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316195967] [2022-10-15 20:26:34,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:26:34,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:26:34,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:26:34,087 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:26:34,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 20:26:34,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:26:34,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:26:34,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1490 conjuncts, 129 conjunts are in the unsatisfiable core [2022-10-15 20:26:34,508 INFO L286 TraceCheckSpWp]: Computing forward predicates...