/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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:12:23,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:12:23,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:12:23,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:12:23,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:12:23,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:12:23,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:12:23,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:12:23,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:12:23,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:12:23,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:12:23,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:12:23,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:12:23,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:12:23,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:12:23,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:12:23,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:12:23,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:12:23,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:12:23,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:12:23,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:12:23,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:12:23,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:12:23,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:12:23,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 22:12:24,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:12:24,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:12:24,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:12:24,007 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 22:12:24,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:12:24,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:12:24,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:12:24,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:12:24,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:12:24,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:12:24,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:12:24,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:12:24,067 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:12:24,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:12:24,068 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:12:24,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:12:24,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:12:24,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:12:24,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:12:24,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:12:24,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:12:24,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:12:24,070 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:12:24,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:12:24,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:12:24,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:12:24,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:12:24,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:12:24,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:12:24,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:12:24,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:12:24,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:12:24,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:12:24,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:12:24,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:12:24,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:12:24,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:12:24,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:12:24,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:12:24,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:12:24,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:12:24,526 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:12:24,528 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:12:24,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-10-15 22:12:24,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa2f170eb/a66007bb1b2e47beaf284659d9d77fd4/FLAG9b8938643 [2022-10-15 22:12:25,741 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:12:25,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-10-15 22:12:25,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa2f170eb/a66007bb1b2e47beaf284659d9d77fd4/FLAG9b8938643 [2022-10-15 22:12:26,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa2f170eb/a66007bb1b2e47beaf284659d9d77fd4 [2022-10-15 22:12:26,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:12:26,042 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:12:26,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:12:26,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:12:26,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:12:26,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:12:26" (1/1) ... [2022-10-15 22:12:26,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f7e3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:26, skipping insertion in model container [2022-10-15 22:12:26,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:12:26" (1/1) ... [2022-10-15 22:12:26,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:12:26,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:12:26,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2022-10-15 22:12:28,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:12:28,805 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:12:28,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2022-10-15 22:12:30,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:12:30,240 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:12:30,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30 WrapperNode [2022-10-15 22:12:30,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:12:30,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:12:30,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:12:30,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:12:30,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:30,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,091 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24416 [2022-10-15 22:12:31,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:12:31,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:12:31,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:12:31,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:12:31,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,661 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:12:31,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:12:31,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:12:31,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:12:31,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (1/1) ... [2022-10-15 22:12:31,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:12:31,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:12:31,854 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 22:12:31,883 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 22:12:31,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 22:12:31,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 22:12:31,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:12:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:12:32,839 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:12:32,842 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:12:47,742 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:12:47,830 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:12:47,831 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 22:12:47,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:12:47 BoogieIcfgContainer [2022-10-15 22:12:47,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:12:47,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:12:47,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:12:47,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:12:47,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:12:26" (1/3) ... [2022-10-15 22:12:47,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76661cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:12:47, skipping insertion in model container [2022-10-15 22:12:47,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:12:30" (2/3) ... [2022-10-15 22:12:47,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76661cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:12:47, skipping insertion in model container [2022-10-15 22:12:47,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:12:47" (3/3) ... [2022-10-15 22:12:47,857 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-10-15 22:12:47,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:12:47,883 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4480 error locations. [2022-10-15 22:12:48,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:12:48,152 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;@5bc7f3f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:12:48,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4480 error locations. [2022-10-15 22:12:48,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 11833 states, 7352 states have (on average 1.963683351468988) internal successors, (14437), 11832 states have internal predecessors, (14437), 0 states have call successors, (0), 0 states 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 22:12:48,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 22:12:48,199 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:48,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 22:12:48,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4477 more)] === [2022-10-15 22:12:48,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-10-15 22:12:48,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:48,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581690444] [2022-10-15 22:12:48,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:48,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:48,773 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 22:12:48,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:48,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581690444] [2022-10-15 22:12:48,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581690444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:48,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:48,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-15 22:12:48,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689341268] [2022-10-15 22:12:48,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:48,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 22:12:48,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:48,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 22:12:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 22:12:49,003 INFO L87 Difference]: Start difference. First operand has 11833 states, 7352 states have (on average 1.963683351468988) internal successors, (14437), 11832 states have internal predecessors, (14437), 0 states have call successors, (0), 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 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states 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 22:12:49,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:49,282 INFO L93 Difference]: Finished difference Result 11836 states and 14439 transitions. [2022-10-15 22:12:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 22:12:49,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-10-15 22:12:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:49,381 INFO L225 Difference]: With dead ends: 11836 [2022-10-15 22:12:49,382 INFO L226 Difference]: Without dead ends: 11822 [2022-10-15 22:12:49,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 22:12:49,403 INFO L413 NwaCegarLoop]: 14428 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14428 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:49,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14428 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:12:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11822 states. [2022-10-15 22:12:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11822 to 11822. [2022-10-15 22:12:49,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11822 states, 7350 states have (on average 1.7131972789115646) internal successors, (12592), 11821 states have internal predecessors, (12592), 0 states have call successors, (0), 0 states 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 22:12:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11822 states to 11822 states and 12592 transitions. [2022-10-15 22:12:49,822 INFO L78 Accepts]: Start accepts. Automaton has 11822 states and 12592 transitions. Word has length 4 [2022-10-15 22:12:49,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:49,823 INFO L495 AbstractCegarLoop]: Abstraction has 11822 states and 12592 transitions. [2022-10-15 22:12:49,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states 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 22:12:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand 11822 states and 12592 transitions. [2022-10-15 22:12:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 22:12:49,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:49,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:49,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:12:49,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2370ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4477 more)] === [2022-10-15 22:12:49,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1371526626, now seen corresponding path program 1 times [2022-10-15 22:12:49,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:49,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909788384] [2022-10-15 22:12:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:49,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:50,264 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 22:12:50,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:50,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909788384] [2022-10-15 22:12:50,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909788384] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:50,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:50,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:12:50,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765788177] [2022-10-15 22:12:50,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:50,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:12:50,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:50,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:12:50,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:12:50,269 INFO L87 Difference]: Start difference. First operand 11822 states and 12592 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 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 22:12:58,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:58,534 INFO L93 Difference]: Finished difference Result 12102 states and 12990 transitions. [2022-10-15 22:12:58,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:12:58,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 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 60 [2022-10-15 22:12:58,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:58,605 INFO L225 Difference]: With dead ends: 12102 [2022-10-15 22:12:58,606 INFO L226 Difference]: Without dead ends: 11661 [2022-10-15 22:12:58,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:58,627 INFO L413 NwaCegarLoop]: 5102 mSDtfsCounter, 23787 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 7471 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23787 SdHoareTripleChecker+Valid, 6001 SdHoareTripleChecker+Invalid, 7924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 7471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:58,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23787 Valid, 6001 Invalid, 7924 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [453 Valid, 7471 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-10-15 22:12:58,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11661 states. [2022-10-15 22:12:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11661 to 11504. [2022-10-15 22:12:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11504 states, 7471 states have (on average 1.6530584928389773) internal successors, (12350), 11503 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states 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 22:12:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11504 states to 11504 states and 12350 transitions. [2022-10-15 22:12:58,968 INFO L78 Accepts]: Start accepts. Automaton has 11504 states and 12350 transitions. Word has length 60 [2022-10-15 22:12:58,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:58,969 INFO L495 AbstractCegarLoop]: Abstraction has 11504 states and 12350 transitions. [2022-10-15 22:12:58,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 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 22:12:58,970 INFO L276 IsEmpty]: Start isEmpty. Operand 11504 states and 12350 transitions. [2022-10-15 22:12:58,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-15 22:12:58,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:58,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:58,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:12:58,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2371ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4477 more)] === [2022-10-15 22:12:58,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:58,977 INFO L85 PathProgramCache]: Analyzing trace with hash -432335136, now seen corresponding path program 1 times [2022-10-15 22:12:58,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:58,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902645028] [2022-10-15 22:12:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:58,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:59,381 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 22:12:59,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:59,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902645028] [2022-10-15 22:12:59,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902645028] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:59,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:59,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:12:59,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087990463] [2022-10-15 22:12:59,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:59,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:12:59,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:59,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:12:59,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:12:59,385 INFO L87 Difference]: Start difference. First operand 11504 states and 12350 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 22:13:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:06,588 INFO L93 Difference]: Finished difference Result 11643 states and 12549 transitions. [2022-10-15 22:13:06,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:13:06,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-10-15 22:13:06,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:06,639 INFO L225 Difference]: With dead ends: 11643 [2022-10-15 22:13:06,639 INFO L226 Difference]: Without dead ends: 11197 [2022-10-15 22:13:06,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:13:06,649 INFO L413 NwaCegarLoop]: 4945 mSDtfsCounter, 23366 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 6872 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23366 SdHoareTripleChecker+Valid, 5220 SdHoareTripleChecker+Invalid, 7332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 6872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:06,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23366 Valid, 5220 Invalid, 7332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [460 Valid, 6872 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-10-15 22:13:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11197 states. [2022-10-15 22:13:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11197 to 11181. [2022-10-15 22:13:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11181 states, 7592 states have (on average 1.5939146469968388) internal successors, (12101), 11180 states have internal predecessors, (12101), 0 states have call successors, (0), 0 states 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 22:13:06,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11181 states to 11181 states and 12101 transitions. [2022-10-15 22:13:06,987 INFO L78 Accepts]: Start accepts. Automaton has 11181 states and 12101 transitions. Word has length 61 [2022-10-15 22:13:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:06,988 INFO L495 AbstractCegarLoop]: Abstraction has 11181 states and 12101 transitions. [2022-10-15 22:13:06,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 22:13:06,988 INFO L276 IsEmpty]: Start isEmpty. Operand 11181 states and 12101 transitions. [2022-10-15 22:13:06,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-15 22:13:06,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:06,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:06,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:13:06,996 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2372ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4477 more)] === [2022-10-15 22:13:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:07,000 INFO L85 PathProgramCache]: Analyzing trace with hash -517474908, now seen corresponding path program 1 times [2022-10-15 22:13:07,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:07,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590324394] [2022-10-15 22:13:07,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:07,373 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 22:13:07,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:07,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590324394] [2022-10-15 22:13:07,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590324394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:07,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:07,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:13:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710585742] [2022-10-15 22:13:07,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:07,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:13:07,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:07,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:13:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:13:07,381 INFO L87 Difference]: Start difference. First operand 11181 states and 12101 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)