/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-memsafety/openbsd_cstrspn-alloca-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:28:14,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:28:14,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:28:14,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:28:14,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:28:14,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:28:14,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:28:14,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:28:14,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:28:14,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:28:14,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:28:14,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:28:14,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:28:14,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:28:14,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:28:14,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:28:14,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:28:14,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:28:14,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:28:14,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:28:14,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:28:14,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:28:14,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:28:14,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:28:14,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:28:14,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 20:28:14,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 20:28:14,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 20:28:14,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 20:28:14,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 20:28:14,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 20:28:14,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 20:28:14,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 20:28:14,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:28:14,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:28:14,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:28:14,254 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 20:28:14,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:28:14,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:28:14,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:28:14,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:28:14,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:28:14,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:28:14,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:28:14,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:28:14,321 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:28:14,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:28:14,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:28:14,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:28:14,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:28:14,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:28:14,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:28:14,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:28:14,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:28:14,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:28:14,324 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:28:14,324 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:28:14,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:28:14,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:28:14,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:28:14,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:28:14,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:28:14,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:28:14,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:28:14,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:28:14,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:28:14,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:28:14,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:28:14,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:28:14,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:28:14,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:28:14,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:28:14,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:28:14,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:28:14,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:28:14,811 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:28:14,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2022-10-15 20:28:14,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e231c016/04610b7df0ef43b5a68f5c976663cb58/FLAG0822c3c09 [2022-10-15 20:28:15,841 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:28:15,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2022-10-15 20:28:15,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e231c016/04610b7df0ef43b5a68f5c976663cb58/FLAG0822c3c09 [2022-10-15 20:28:15,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e231c016/04610b7df0ef43b5a68f5c976663cb58 [2022-10-15 20:28:15,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:28:15,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:28:15,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:28:15,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:28:15,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:28:15,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:28:15" (1/1) ... [2022-10-15 20:28:15,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcac512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:15, skipping insertion in model container [2022-10-15 20:28:15,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:28:15" (1/1) ... [2022-10-15 20:28:15,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:28:15,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:28:16,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:28:16,428 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:28:16,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:28:16,577 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:28:16,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16 WrapperNode [2022-10-15 20:28:16,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:28:16,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:28:16,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:28:16,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:28:16,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,682 INFO L138 Inliner]: procedures = 117, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2022-10-15 20:28:16,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:28:16,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:28:16,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:28:16,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:28:16,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,717 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:28:16,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:28:16,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:28:16,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:28:16,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (1/1) ... [2022-10-15 20:28:16,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:28:16,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:16,769 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 20:28:16,775 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 20:28:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:28:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:28:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:28:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:28:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:28:16,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:28:16,983 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:28:16,986 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:28:17,290 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:28:17,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:28:17,300 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 20:28:17,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:28:17 BoogieIcfgContainer [2022-10-15 20:28:17,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:28:17,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:28:17,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:28:17,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:28:17,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:28:15" (1/3) ... [2022-10-15 20:28:17,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756bae55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:28:17, skipping insertion in model container [2022-10-15 20:28:17,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:16" (2/3) ... [2022-10-15 20:28:17,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756bae55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:28:17, skipping insertion in model container [2022-10-15 20:28:17,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:28:17" (3/3) ... [2022-10-15 20:28:17,315 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca-2.i [2022-10-15 20:28:17,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:28:17,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-15 20:28:17,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:28:17,474 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;@6f35deeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:28:17,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-15 20:28:17,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 20:28:17,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 20:28:17,491 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:17,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 20:28:17,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:17,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash 889510733, now seen corresponding path program 1 times [2022-10-15 20:28:17,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:17,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926738098] [2022-10-15 20:28:17,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:17,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:17,906 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 20:28:17,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:17,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926738098] [2022-10-15 20:28:17,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926738098] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:17,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:17,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:17,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932986826] [2022-10-15 20:28:17,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:17,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:17,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:17,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:17,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:17,973 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:18,116 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2022-10-15 20:28:18,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:18,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-15 20:28:18,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:18,131 INFO L225 Difference]: With dead ends: 108 [2022-10-15 20:28:18,131 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 20:28:18,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:18,141 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 40 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:18,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 73 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:28:18,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 20:28:18,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2022-10-15 20:28:18,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 49 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2022-10-15 20:28:18,192 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 6 [2022-10-15 20:28:18,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:18,192 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-10-15 20:28:18,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,193 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2022-10-15 20:28:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 20:28:18,194 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:18,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 20:28:18,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:28:18,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:18,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:18,196 INFO L85 PathProgramCache]: Analyzing trace with hash 889570315, now seen corresponding path program 1 times [2022-10-15 20:28:18,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:18,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784210565] [2022-10-15 20:28:18,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:18,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:18,290 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 20:28:18,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:18,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784210565] [2022-10-15 20:28:18,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784210565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:18,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:18,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:18,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244119092] [2022-10-15 20:28:18,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:18,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:18,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:18,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:18,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:18,295 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:18,322 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2022-10-15 20:28:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:18,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-15 20:28:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:18,324 INFO L225 Difference]: With dead ends: 50 [2022-10-15 20:28:18,324 INFO L226 Difference]: Without dead ends: 48 [2022-10-15 20:28:18,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:18,327 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:18,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-15 20:28:18,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2022-10-15 20:28:18,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 20:28:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-10-15 20:28:18,336 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 6 [2022-10-15 20:28:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:18,336 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-10-15 20:28:18,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-10-15 20:28:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 20:28:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:18,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:18,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:28:18,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:18,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028999, now seen corresponding path program 1 times [2022-10-15 20:28:18,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:18,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339032801] [2022-10-15 20:28:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:18,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:18,435 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 20:28:18,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:18,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339032801] [2022-10-15 20:28:18,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339032801] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:18,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:18,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:18,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094368474] [2022-10-15 20:28:18,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:18,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:18,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:18,439 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:18,460 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-10-15 20:28:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:18,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 20:28:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:18,462 INFO L225 Difference]: With dead ends: 32 [2022-10-15 20:28:18,463 INFO L226 Difference]: Without dead ends: 30 [2022-10-15 20:28:18,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:18,465 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:18,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-15 20:28:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-15 20:28:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5) internal successors, (33), 29 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 20:28:18,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-10-15 20:28:18,473 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 7 [2022-10-15 20:28:18,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:18,474 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-10-15 20:28:18,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,474 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-10-15 20:28:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:28:18,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:18,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:18,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 20:28:18,476 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:18,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:18,477 INFO L85 PathProgramCache]: Analyzing trace with hash 628418293, now seen corresponding path program 1 times [2022-10-15 20:28:18,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:18,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024773945] [2022-10-15 20:28:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:18,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:18,605 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 20:28:18,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:18,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024773945] [2022-10-15 20:28:18,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024773945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:18,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:18,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:18,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951068056] [2022-10-15 20:28:18,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:18,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:18,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:18,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:18,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:18,616 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 20:28:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:18,660 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-10-15 20:28:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:18,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 20:28:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:18,662 INFO L225 Difference]: With dead ends: 54 [2022-10-15 20:28:18,663 INFO L226 Difference]: Without dead ends: 52 [2022-10-15 20:28:18,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:18,666 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:18,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 45 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:18,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-15 20:28:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-10-15 20:28:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 46 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 20:28:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-10-15 20:28:18,678 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 10 [2022-10-15 20:28:18,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:18,679 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-10-15 20:28:18,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 20:28:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-10-15 20:28:18,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:28:18,680 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:18,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:18,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 20:28:18,681 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:18,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash 628419956, now seen corresponding path program 1 times [2022-10-15 20:28:18,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:18,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597093059] [2022-10-15 20:28:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:18,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:18,876 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 20:28:18,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:18,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597093059] [2022-10-15 20:28:18,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597093059] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:18,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:18,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:28:18,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203686603] [2022-10-15 20:28:18,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:18,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:18,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:18,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:18,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:18,886 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:28:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:18,951 INFO L93 Difference]: Finished difference Result 124 states and 149 transitions. [2022-10-15 20:28:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:28:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:18,953 INFO L225 Difference]: With dead ends: 124 [2022-10-15 20:28:18,953 INFO L226 Difference]: Without dead ends: 83 [2022-10-15 20:28:18,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 20:28:18,956 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:18,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 71 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:18,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-15 20:28:18,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 56. [2022-10-15 20:28:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 55 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2022-10-15 20:28:18,970 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 10 [2022-10-15 20:28:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:18,971 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2022-10-15 20:28:18,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:28:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2022-10-15 20:28:18,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:28:18,973 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:18,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:18,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:28:18,974 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:18,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:18,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1891541641, now seen corresponding path program 1 times [2022-10-15 20:28:18,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:18,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434342941] [2022-10-15 20:28:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:18,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:19,028 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 20:28:19,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:19,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434342941] [2022-10-15 20:28:19,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434342941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:19,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:19,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:19,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796843475] [2022-10-15 20:28:19,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:19,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:19,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:19,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:19,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:19,033 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 20:28:19,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:19,054 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2022-10-15 20:28:19,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:19,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 20:28:19,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:19,057 INFO L225 Difference]: With dead ends: 56 [2022-10-15 20:28:19,057 INFO L226 Difference]: Without dead ends: 54 [2022-10-15 20:28:19,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:19,059 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:19,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:19,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-15 20:28:19,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 33. [2022-10-15 20:28:19,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states 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 20:28:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-10-15 20:28:19,069 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2022-10-15 20:28:19,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:19,069 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-10-15 20:28:19,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 20:28:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-10-15 20:28:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:28:19,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:19,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:19,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:28:19,072 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:19,073 INFO L85 PathProgramCache]: Analyzing trace with hash -180926670, now seen corresponding path program 1 times [2022-10-15 20:28:19,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:19,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487016305] [2022-10-15 20:28:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:19,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:19,154 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 20:28:19,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:19,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487016305] [2022-10-15 20:28:19,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487016305] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:19,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:19,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:28:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953764884] [2022-10-15 20:28:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:19,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:19,159 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 20:28:19,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:19,197 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-10-15 20:28:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:19,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 20:28:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:19,199 INFO L225 Difference]: With dead ends: 56 [2022-10-15 20:28:19,200 INFO L226 Difference]: Without dead ends: 54 [2022-10-15 20:28:19,200 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 20:28:19,202 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 74 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 20:28:19,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-15 20:28:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2022-10-15 20:28:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 20:28:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-10-15 20:28:19,212 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 10 [2022-10-15 20:28:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:19,213 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-10-15 20:28:19,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 20:28:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-10-15 20:28:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:28:19,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:19,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:19,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 20:28:19,215 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:19,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1993869323, now seen corresponding path program 1 times [2022-10-15 20:28:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:19,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554235494] [2022-10-15 20:28:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:19,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:19,263 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 20:28:19,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:19,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554235494] [2022-10-15 20:28:19,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554235494] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:19,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:19,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:28:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180201866] [2022-10-15 20:28:19,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:19,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:28:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:19,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:28:19,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:19,267 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:19,286 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-10-15 20:28:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:28:19,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 20:28:19,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:19,287 INFO L225 Difference]: With dead ends: 39 [2022-10-15 20:28:19,287 INFO L226 Difference]: Without dead ends: 33 [2022-10-15 20:28:19,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:28:19,289 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:19,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-15 20:28:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-15 20:28:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-10-15 20:28:19,314 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-10-15 20:28:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:19,315 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-10-15 20:28:19,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-10-15 20:28:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:28:19,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:19,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:19,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 20:28:19,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:19,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash 36780700, now seen corresponding path program 1 times [2022-10-15 20:28:19,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:19,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192586636] [2022-10-15 20:28:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:19,384 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 20:28:19,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:19,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192586636] [2022-10-15 20:28:19,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192586636] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:19,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:19,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:28:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006224263] [2022-10-15 20:28:19,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:19,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:19,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:19,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:19,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:19,390 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.5) 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 20:28:19,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:19,425 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-10-15 20:28:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:19,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) 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 20:28:19,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:19,428 INFO L225 Difference]: With dead ends: 64 [2022-10-15 20:28:19,428 INFO L226 Difference]: Without dead ends: 48 [2022-10-15 20:28:19,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 20:28:19,432 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:19,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 55 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:19,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-15 20:28:19,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-10-15 20:28:19,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 45 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 20:28:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-10-15 20:28:19,455 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 14 [2022-10-15 20:28:19,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:19,459 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-10-15 20:28:19,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) 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 20:28:19,461 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-10-15 20:28:19,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:28:19,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:19,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:19,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 20:28:19,466 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:19,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:19,468 INFO L85 PathProgramCache]: Analyzing trace with hash 737845278, now seen corresponding path program 1 times [2022-10-15 20:28:19,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:19,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614153829] [2022-10-15 20:28:19,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:19,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:19,552 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 20:28:19,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:19,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614153829] [2022-10-15 20:28:19,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614153829] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:19,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:28:19,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:28:19,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583488832] [2022-10-15 20:28:19,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:19,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:28:19,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:19,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:28:19,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:28:19,555 INFO L87 Difference]: Start difference. First operand 46 states and 52 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 20:28:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:19,587 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-10-15 20:28:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:28:19,588 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 20:28:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:19,589 INFO L225 Difference]: With dead ends: 54 [2022-10-15 20:28:19,589 INFO L226 Difference]: Without dead ends: 52 [2022-10-15 20:28:19,590 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 20:28:19,592 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:19,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-15 20:28:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-15 20:28:19,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 20:28:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-10-15 20:28:19,619 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 14 [2022-10-15 20:28:19,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:19,619 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-10-15 20:28:19,620 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 20:28:19,624 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-10-15 20:28:19,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:28:19,625 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:19,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:19,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 20:28:19,626 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:19,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:19,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1917321044, now seen corresponding path program 1 times [2022-10-15 20:28:19,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:19,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024258185] [2022-10-15 20:28:19,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:19,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:19,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:19,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:19,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024258185] [2022-10-15 20:28:19,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024258185] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:19,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433471672] [2022-10-15 20:28:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:19,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:19,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:19,792 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 20:28:19,799 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 20:28:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:19,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:19,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:19,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:20,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433471672] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:20,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:20,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 20:28:20,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211174205] [2022-10-15 20:28:20,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:20,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 20:28:20,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:20,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 20:28:20,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:28:20,060 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 20:28:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:20,214 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions. [2022-10-15 20:28:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:28:20,215 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-15 20:28:20,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:20,217 INFO L225 Difference]: With dead ends: 152 [2022-10-15 20:28:20,217 INFO L226 Difference]: Without dead ends: 151 [2022-10-15 20:28:20,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 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 20:28:20,219 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 96 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:20,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 121 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:28:20,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-15 20:28:20,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 86. [2022-10-15 20:28:20,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 85 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 20:28:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 99 transitions. [2022-10-15 20:28:20,232 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 99 transitions. Word has length 16 [2022-10-15 20:28:20,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:20,232 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 99 transitions. [2022-10-15 20:28:20,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 20:28:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 99 transitions. [2022-10-15 20:28:20,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 20:28:20,234 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:20,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:20,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 20:28:20,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 20:28:20,451 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:20,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash 692589843, now seen corresponding path program 1 times [2022-10-15 20:28:20,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:20,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120232538] [2022-10-15 20:28:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:20,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:20,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:20,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120232538] [2022-10-15 20:28:20,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120232538] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:20,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361089563] [2022-10-15 20:28:20,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:20,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:20,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:20,542 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 20:28:20,560 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 20:28:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:20,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:20,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:20,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:28:20,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361089563] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:20,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:28:20,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:28:20,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955804736] [2022-10-15 20:28:20,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:20,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:28:20,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:20,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:28:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:28:20,686 INFO L87 Difference]: Start difference. First operand 86 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 20:28:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:20,749 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2022-10-15 20:28:20,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:28:20,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-10-15 20:28:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:20,754 INFO L225 Difference]: With dead ends: 101 [2022-10-15 20:28:20,755 INFO L226 Difference]: Without dead ends: 100 [2022-10-15 20:28:20,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:28:20,757 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:20,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 106 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:20,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-15 20:28:20,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2022-10-15 20:28:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 84 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 20:28:20,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-10-15 20:28:20,781 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 17 [2022-10-15 20:28:20,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:20,781 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-10-15 20:28:20,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 20:28:20,782 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-10-15 20:28:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 20:28:20,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:20,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:20,824 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 20:28:20,998 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,SelfDestructingSolverStorable11 [2022-10-15 20:28:20,999 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:21,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1973612760, now seen corresponding path program 1 times [2022-10-15 20:28:21,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:21,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137749762] [2022-10-15 20:28:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:21,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:21,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137749762] [2022-10-15 20:28:21,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137749762] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:21,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385028060] [2022-10-15 20:28:21,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:21,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:21,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:21,107 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 20:28:21,135 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 20:28:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:21,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:21,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:21,227 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:21,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:21,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:21,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385028060] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:21,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:21,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 20:28:21,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867843956] [2022-10-15 20:28:21,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:21,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 20:28:21,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:21,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 20:28:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:28:21,284 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 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 20:28:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:21,395 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2022-10-15 20:28:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:28:21,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 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 20 [2022-10-15 20:28:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:21,397 INFO L225 Difference]: With dead ends: 107 [2022-10-15 20:28:21,397 INFO L226 Difference]: Without dead ends: 106 [2022-10-15 20:28:21,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 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 20:28:21,399 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:21,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 122 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:21,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-15 20:28:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2022-10-15 20:28:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.1313131313131313) internal successors, (112), 101 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 20:28:21,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2022-10-15 20:28:21,412 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 20 [2022-10-15 20:28:21,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:21,413 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2022-10-15 20:28:21,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 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 20:28:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2022-10-15 20:28:21,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 20:28:21,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:21,415 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:21,447 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 20:28:21,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:21,631 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:21,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1052453501, now seen corresponding path program 1 times [2022-10-15 20:28:21,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:21,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883515463] [2022-10-15 20:28:21,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:21,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:21,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:21,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883515463] [2022-10-15 20:28:21,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883515463] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:21,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342267127] [2022-10-15 20:28:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:21,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:21,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:21,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:28:21,749 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 20:28:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:21,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:28:21,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:21,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:28:21,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342267127] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:28:21,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:28:21,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:28:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543517270] [2022-10-15 20:28:21,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:28:21,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:28:21,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:21,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:28:21,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:28:21,835 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:21,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:21,878 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-10-15 20:28:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:28:21,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-15 20:28:21,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:21,880 INFO L225 Difference]: With dead ends: 102 [2022-10-15 20:28:21,880 INFO L226 Difference]: Without dead ends: 101 [2022-10-15 20:28:21,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:28:21,881 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:21,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 74 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:28:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-15 20:28:21,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-10-15 20:28:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 99 states have (on average 1.101010101010101) internal successors, (109), 100 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:21,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2022-10-15 20:28:21,894 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 21 [2022-10-15 20:28:21,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:21,894 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2022-10-15 20:28:21,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:28:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2022-10-15 20:28:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 20:28:21,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:21,896 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:21,939 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 20:28:22,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:22,113 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash 733845530, now seen corresponding path program 2 times [2022-10-15 20:28:22,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:22,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784250513] [2022-10-15 20:28:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:22,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:22,306 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:22,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:22,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784250513] [2022-10-15 20:28:22,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784250513] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:22,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191371320] [2022-10-15 20:28:22,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:28:22,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:22,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:22,309 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 20:28:22,330 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 20:28:22,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:28:22,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:28:22,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:28:22,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-15 20:28:22,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-15 20:28:22,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191371320] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:22,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:22,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-15 20:28:22,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014529262] [2022-10-15 20:28:22,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:22,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:28:22,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:22,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:28:22,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:28:22,538 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 20:28:22,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:22,819 INFO L93 Difference]: Finished difference Result 307 states and 319 transitions. [2022-10-15 20:28:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 20:28:22,820 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 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 20:28:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:22,822 INFO L225 Difference]: With dead ends: 307 [2022-10-15 20:28:22,822 INFO L226 Difference]: Without dead ends: 266 [2022-10-15 20:28:22,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-15 20:28:22,826 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 248 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:22,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 90 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:28:22,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-10-15 20:28:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 47. [2022-10-15 20:28:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 20:28:22,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2022-10-15 20:28:22,838 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 34 [2022-10-15 20:28:22,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:22,838 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2022-10-15 20:28:22,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 20:28:22,839 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2022-10-15 20:28:22,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-15 20:28:22,843 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:28:22,844 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:22,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-15 20:28:23,058 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,SelfDestructingSolverStorable14 [2022-10-15 20:28:23,059 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:28:23,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:28:23,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1777905158, now seen corresponding path program 2 times [2022-10-15 20:28:23,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:28:23,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933199672] [2022-10-15 20:28:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:28:23,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:28:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:28:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:28:23,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:28:23,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933199672] [2022-10-15 20:28:23,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933199672] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:28:23,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591794830] [2022-10-15 20:28:23,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:28:23,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:28:23,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:23,265 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 20:28:23,289 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 20:28:23,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:28:23,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:28:23,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:28:23,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:28:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-15 20:28:23,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:28:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-15 20:28:23,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591794830] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:28:23,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:28:23,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-15 20:28:23,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046674700] [2022-10-15 20:28:23,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:28:23,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:28:23,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:28:23,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:28:23,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:28:23,532 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 20:28:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:28:23,746 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2022-10-15 20:28:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 20:28:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 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 38 [2022-10-15 20:28:23,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:28:23,750 INFO L225 Difference]: With dead ends: 57 [2022-10-15 20:28:23,750 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 20:28:23,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 69 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 20:28:23,752 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 64 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:28:23,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 76 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:28:23,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 20:28:23,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 20:28:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 20:28:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 20:28:23,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-10-15 20:28:23,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:28:23,755 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 20:28:23,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 20:28:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 20:28:23,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 20:28:23,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-10-15 20:28:23,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-10-15 20:28:23,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-10-15 20:28:23,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-10-15 20:28:23,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-10-15 20:28:23,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-10-15 20:28:23,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-10-15 20:28:23,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-10-15 20:28:23,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-10-15 20:28:23,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-10-15 20:28:23,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-10-15 20:28:23,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-10-15 20:28:23,807 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 20:28:23,977 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 20:28:23,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 20:28:30,820 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 118 DAG size of output: 115 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-15 20:28:31,272 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-15 20:28:31,272 INFO L899 garLoopResultBuilder]: For program point L531-1(lines 531 533) no Hoare annotation was computed. [2022-10-15 20:28:31,272 INFO L902 garLoopResultBuilder]: At program point L523(lines 513 524) the Hoare annotation is: true [2022-10-15 20:28:31,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-10-15 20:28:31,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-15 20:28:31,273 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 20:28:31,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-15 20:28:31,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 20:28:31,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-15 20:28:31,274 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 20:28:31,274 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 530) no Hoare annotation was computed. [2022-10-15 20:28:31,274 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 525 548) no Hoare annotation was computed. [2022-10-15 20:28:31,274 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-10-15 20:28:31,275 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 520 522) no Hoare annotation was computed. [2022-10-15 20:28:31,275 INFO L902 garLoopResultBuilder]: At program point L520-3(lines 520 522) the Hoare annotation is: true [2022-10-15 20:28:31,275 INFO L899 garLoopResultBuilder]: For program point L520-4(lines 520 522) no Hoare annotation was computed. [2022-10-15 20:28:31,275 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-15 20:28:31,275 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-10-15 20:28:31,275 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 20:28:31,275 INFO L899 garLoopResultBuilder]: For program point L541-1(line 541) no Hoare annotation was computed. [2022-10-15 20:28:31,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-15 20:28:31,276 INFO L899 garLoopResultBuilder]: For program point L541-2(lines 541 544) no Hoare annotation was computed. [2022-10-15 20:28:31,276 INFO L899 garLoopResultBuilder]: For program point L541-4(lines 541 544) no Hoare annotation was computed. [2022-10-15 20:28:31,276 INFO L899 garLoopResultBuilder]: For program point L537-1(line 537) no Hoare annotation was computed. [2022-10-15 20:28:31,276 INFO L899 garLoopResultBuilder]: For program point L541-5(line 541) no Hoare annotation was computed. [2022-10-15 20:28:31,276 INFO L899 garLoopResultBuilder]: For program point L537-2(lines 537 540) no Hoare annotation was computed. [2022-10-15 20:28:31,276 INFO L899 garLoopResultBuilder]: For program point L541-6(line 541) no Hoare annotation was computed. [2022-10-15 20:28:31,277 INFO L895 garLoopResultBuilder]: At program point L541-7(lines 541 544) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse5 (< |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and .cse0 (<= |ULTIMATE.start_main_~length2~0#1| 1) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse5 (< |ULTIMATE.start_main_~i~1#1| 2147483647) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse4))) [2022-10-15 20:28:31,277 INFO L899 garLoopResultBuilder]: For program point L537-4(lines 537 540) no Hoare annotation was computed. [2022-10-15 20:28:31,277 INFO L899 garLoopResultBuilder]: For program point L541-8(lines 541 544) no Hoare annotation was computed. [2022-10-15 20:28:31,277 INFO L899 garLoopResultBuilder]: For program point L537-5(line 537) no Hoare annotation was computed. [2022-10-15 20:28:31,278 INFO L899 garLoopResultBuilder]: For program point L537-6(line 537) no Hoare annotation was computed. [2022-10-15 20:28:31,278 INFO L895 garLoopResultBuilder]: At program point L537-7(lines 537 540) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 2147483647) .cse0 .cse1 .cse2 .cse3))) [2022-10-15 20:28:31,279 INFO L899 garLoopResultBuilder]: For program point L537-8(lines 537 540) no Hoare annotation was computed. [2022-10-15 20:28:31,279 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-10-15 20:28:31,279 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 522) no Hoare annotation was computed. [2022-10-15 20:28:31,280 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-10-15 20:28:31,280 INFO L899 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2022-10-15 20:28:31,280 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-10-15 20:28:31,280 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-10-15 20:28:31,280 INFO L902 garLoopResultBuilder]: At program point L522(lines 515 524) the Hoare annotation is: true [2022-10-15 20:28:31,281 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-10-15 20:28:31,281 INFO L902 garLoopResultBuilder]: At program point L547(lines 525 548) the Hoare annotation is: true [2022-10-15 20:28:31,285 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:28:31,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 20:28:31,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:28:31 BoogieIcfgContainer [2022-10-15 20:28:31,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 20:28:31,327 INFO L158 Benchmark]: Toolchain (without parser) took 15427.90ms. Allocated memory was 159.4MB in the beginning and 399.5MB in the end (delta: 240.1MB). Free memory was 132.1MB in the beginning and 373.5MB in the end (delta: -241.3MB). Peak memory consumption was 238.4MB. Max. memory is 8.0GB. [2022-10-15 20:28:31,327 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 20:28:31,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.96ms. Allocated memory is still 159.4MB. Free memory was 132.0MB in the beginning and 116.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-15 20:28:31,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.46ms. Allocated memory is still 159.4MB. Free memory was 116.2MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 20:28:31,329 INFO L158 Benchmark]: Boogie Preprocessor took 37.95ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 112.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 20:28:31,329 INFO L158 Benchmark]: RCFGBuilder took 580.91ms. Allocated memory is still 159.4MB. Free memory was 112.6MB in the beginning and 131.7MB in the end (delta: -19.1MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. [2022-10-15 20:28:31,330 INFO L158 Benchmark]: TraceAbstraction took 14018.69ms. Allocated memory was 159.4MB in the beginning and 399.5MB in the end (delta: 240.1MB). Free memory was 131.2MB in the beginning and 373.5MB in the end (delta: -242.3MB). Peak memory consumption was 235.9MB. Max. memory is 8.0GB. [2022-10-15 20:28:31,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 675.96ms. Allocated memory is still 159.4MB. Free memory was 132.0MB in the beginning and 116.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 101.46ms. Allocated memory is still 159.4MB. Free memory was 116.2MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.95ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 112.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 580.91ms. Allocated memory is still 159.4MB. Free memory was 112.6MB in the beginning and 131.7MB in the end (delta: -19.1MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. * TraceAbstraction took 14018.69ms. Allocated memory was 159.4MB in the beginning and 399.5MB in the end (delta: 240.1MB). Free memory was 131.2MB in the beginning and 373.5MB in the end (delta: -242.3MB). Peak memory consumption was 235.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 668 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 668 mSDsluCounter, 1066 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 701 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 476 IncrementalHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 365 mSDtfsCounter, 476 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=13, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 400 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 32 NumberOfFragments, 107 HoareAnnotationTreeSize, 6 FomulaSimplifications, 37674 FormulaSimplificationTreeSizeReduction, 6.9s HoareSimplificationTime, 6 FomulaSimplificationsInter, 57022 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 390 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 472 ConstructedInterpolants, 0 QuantifiedInterpolants, 1222 SizeOfPredicates, 14 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 204/390 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((((((i == 0 && length2 <= 1) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || ((((((i == 0 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && length2 <= 2147483647)) || (((((((i < 2147483647 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && 1 <= i) && length2 <= 2147483647) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: ((((i == 0 && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || (((((1 <= i && i < 2147483647) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) RESULT: Ultimate proved your program to be correct! [2022-10-15 20:28:31,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...