/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-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:56:11,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:56:11,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:56:11,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 02:56:11,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 02:56:11,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 02:56:11,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 02:56:11,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 02:56:11,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 02:56:11,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 02:56:11,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 02:56:11,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 02:56:11,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:56:11,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:56:11,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:56:11,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:56:11,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:56:11,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:56:11,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:56:11,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:56:11,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:56:11,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:56:11,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:56:12,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:56:12,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:56:12,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:56:12,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:56:12,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:56:12,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:56:12,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:56:12,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:56:12,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:56:12,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:56:12,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:56:12,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:56:12,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:56:12,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:56:12,049 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:56:12,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:56:12,049 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:56:12,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:56:12,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:56:12,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:56:12,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:56:12,050 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:56:12,051 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:56:12,051 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:56:12,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:56:12,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:56:12,052 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:56:12,052 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:56:12,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:56:12,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:56:12,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:56:12,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:56:12,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:56:12,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:56:12,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:56:12,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:56:12,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:56:12,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:56:12,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:56:12,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:56:12,433 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:56:12,437 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:56:12,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 02:56:12,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfd293bd/0badb12fd4da4230ab6829a7546905ac/FLAG125a17c80 [2022-10-16 02:56:13,238 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:56:13,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 02:56:13,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfd293bd/0badb12fd4da4230ab6829a7546905ac/FLAG125a17c80 [2022-10-16 02:56:13,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfd293bd/0badb12fd4da4230ab6829a7546905ac [2022-10-16 02:56:13,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:56:13,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:56:13,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:56:13,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:56:13,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:56:13,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:13" (1/1) ... [2022-10-16 02:56:13,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444adab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:13, skipping insertion in model container [2022-10-16 02:56:13,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:13" (1/1) ... [2022-10-16 02:56:13,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:56:13,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:56:14,194 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/pals_opt-floodmax.5_overflow.ufo.UNBOUNDED.pals.c[65601,65614] [2022-10-16 02:56:14,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:56:14,219 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:56:14,417 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/pals_opt-floodmax.5_overflow.ufo.UNBOUNDED.pals.c[65601,65614] [2022-10-16 02:56:14,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:56:14,437 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:56:14,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14 WrapperNode [2022-10-16 02:56:14,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:56:14,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:56:14,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:56:14,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:56:14,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,580 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2123 [2022-10-16 02:56:14,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:56:14,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:56:14,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:56:14,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:56:14,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:56:14,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:56:14,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:56:14,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:56:14,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2022-10-16 02:56:14,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:56:14,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:56:14,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 02:56:14,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 02:56:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:56:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:56:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:56:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:56:15,088 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:56:15,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:56:17,097 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:56:17,120 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:56:17,120 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:56:17,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:17 BoogieIcfgContainer [2022-10-16 02:56:17,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:56:17,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:56:17,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:56:17,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:56:17,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:56:13" (1/3) ... [2022-10-16 02:56:17,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654ab376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:17, skipping insertion in model container [2022-10-16 02:56:17,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (2/3) ... [2022-10-16 02:56:17,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654ab376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:17, skipping insertion in model container [2022-10-16 02:56:17,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:17" (3/3) ... [2022-10-16 02:56:17,137 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 02:56:17,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:56:17,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:56:17,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:56:17,261 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6afed3ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:56:17,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:56:17,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 737 states, 734 states have (on average 1.8514986376021798) internal successors, (1359), 736 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:17,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 02:56:17,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:17,296 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, 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, 1, 1, 1, 1, 1, 1] [2022-10-16 02:56:17,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:17,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:17,303 INFO L85 PathProgramCache]: Analyzing trace with hash -72247115, now seen corresponding path program 1 times [2022-10-16 02:56:17,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:17,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658547339] [2022-10-16 02:56:17,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:17,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:18,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:18,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658547339] [2022-10-16 02:56:18,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658547339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:18,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:18,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:56:18,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187336900] [2022-10-16 02:56:18,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:18,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:56:18,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:56:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:56:18,108 INFO L87 Difference]: Start difference. First operand has 737 states, 734 states have (on average 1.8514986376021798) internal successors, (1359), 736 states have internal predecessors, (1359), 0 states have call successors, (0), 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, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:18,188 INFO L93 Difference]: Finished difference Result 732 states and 1351 transitions. [2022-10-16 02:56:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:56:18,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2022-10-16 02:56:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:18,214 INFO L225 Difference]: With dead ends: 732 [2022-10-16 02:56:18,214 INFO L226 Difference]: Without dead ends: 732 [2022-10-16 02:56:18,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:56:18,221 INFO L413 NwaCegarLoop]: 1351 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, 1351 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 [2022-10-16 02:56:18,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:18,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-10-16 02:56:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2022-10-16 02:56:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.8481532147742818) internal successors, (1351), 731 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1351 transitions. [2022-10-16 02:56:18,326 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1351 transitions. Word has length 130 [2022-10-16 02:56:18,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:18,327 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 1351 transitions. [2022-10-16 02:56:18,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:18,327 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1351 transitions. [2022-10-16 02:56:18,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-16 02:56:18,335 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:18,335 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, 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, 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] [2022-10-16 02:56:18,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:56:18,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:18,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash -897700725, now seen corresponding path program 1 times [2022-10-16 02:56:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:18,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437683826] [2022-10-16 02:56:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:18,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:18,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:18,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437683826] [2022-10-16 02:56:18,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437683826] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:18,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:18,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:56:18,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183028324] [2022-10-16 02:56:18,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:18,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:56:18,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:18,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:56:18,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:56:18,921 INFO L87 Difference]: Start difference. First operand 732 states and 1351 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:19,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:19,101 INFO L93 Difference]: Finished difference Result 735 states and 1353 transitions. [2022-10-16 02:56:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:56:19,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-10-16 02:56:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:19,109 INFO L225 Difference]: With dead ends: 735 [2022-10-16 02:56:19,110 INFO L226 Difference]: Without dead ends: 732 [2022-10-16 02:56:19,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:56:19,117 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 3 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:19,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5328 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:56:19,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-10-16 02:56:19,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2022-10-16 02:56:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.759233926128591) internal successors, (1286), 731 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1286 transitions. [2022-10-16 02:56:19,142 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1286 transitions. Word has length 153 [2022-10-16 02:56:19,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:19,143 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 1286 transitions. [2022-10-16 02:56:19,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:19,144 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1286 transitions. [2022-10-16 02:56:19,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-10-16 02:56:19,163 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:19,163 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, 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, 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, 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] [2022-10-16 02:56:19,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:56:19,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:19,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1598055145, now seen corresponding path program 1 times [2022-10-16 02:56:19,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:19,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438300749] [2022-10-16 02:56:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:19,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:19,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438300749] [2022-10-16 02:56:19,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438300749] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:19,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:19,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:19,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976979437] [2022-10-16 02:56:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:19,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:19,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:19,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:19,513 INFO L87 Difference]: Start difference. First operand 732 states and 1286 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:19,574 INFO L93 Difference]: Finished difference Result 899 states and 1570 transitions. [2022-10-16 02:56:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:19,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 217 [2022-10-16 02:56:19,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:19,581 INFO L225 Difference]: With dead ends: 899 [2022-10-16 02:56:19,582 INFO L226 Difference]: Without dead ends: 899 [2022-10-16 02:56:19,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:19,584 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 281 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:19,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 2502 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-10-16 02:56:19,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 897. [2022-10-16 02:56:19,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 896 states have (on average 1.7511160714285714) internal successors, (1569), 896 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:19,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1569 transitions. [2022-10-16 02:56:19,614 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1569 transitions. Word has length 217 [2022-10-16 02:56:19,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:19,615 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1569 transitions. [2022-10-16 02:56:19,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1569 transitions. [2022-10-16 02:56:19,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-10-16 02:56:19,624 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:19,625 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, 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, 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, 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] [2022-10-16 02:56:19,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:56:19,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:19,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:19,626 INFO L85 PathProgramCache]: Analyzing trace with hash 741252945, now seen corresponding path program 1 times [2022-10-16 02:56:19,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:19,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542433387] [2022-10-16 02:56:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:19,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:20,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:20,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542433387] [2022-10-16 02:56:20,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542433387] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:20,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:20,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:20,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485242219] [2022-10-16 02:56:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:20,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:20,066 INFO L87 Difference]: Start difference. First operand 897 states and 1569 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:20,127 INFO L93 Difference]: Finished difference Result 1219 states and 2121 transitions. [2022-10-16 02:56:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:20,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 221 [2022-10-16 02:56:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:20,136 INFO L225 Difference]: With dead ends: 1219 [2022-10-16 02:56:20,136 INFO L226 Difference]: Without dead ends: 1219 [2022-10-16 02:56:20,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:20,138 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 281 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:20,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 2510 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:20,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2022-10-16 02:56:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1217. [2022-10-16 02:56:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 1.743421052631579) internal successors, (2120), 1216 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 2120 transitions. [2022-10-16 02:56:20,182 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 2120 transitions. Word has length 221 [2022-10-16 02:56:20,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:20,183 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 2120 transitions. [2022-10-16 02:56:20,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:20,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 2120 transitions. [2022-10-16 02:56:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 02:56:20,189 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:20,190 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, 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, 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, 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] [2022-10-16 02:56:20,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:56:20,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:20,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash -674300039, now seen corresponding path program 1 times [2022-10-16 02:56:20,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:20,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848486578] [2022-10-16 02:56:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:20,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:20,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:20,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848486578] [2022-10-16 02:56:20,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848486578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:20,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:20,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:20,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890911494] [2022-10-16 02:56:20,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:20,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:20,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:20,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:20,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:20,498 INFO L87 Difference]: Start difference. First operand 1217 states and 2120 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:20,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:20,540 INFO L93 Difference]: Finished difference Result 1835 states and 3177 transitions. [2022-10-16 02:56:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:20,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2022-10-16 02:56:20,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:20,553 INFO L225 Difference]: With dead ends: 1835 [2022-10-16 02:56:20,553 INFO L226 Difference]: Without dead ends: 1835 [2022-10-16 02:56:20,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:20,555 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 273 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:20,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 2511 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:20,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2022-10-16 02:56:20,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1833. [2022-10-16 02:56:20,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1832 states have (on average 1.7336244541484715) internal successors, (3176), 1832 states have internal predecessors, (3176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 3176 transitions. [2022-10-16 02:56:20,628 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 3176 transitions. Word has length 225 [2022-10-16 02:56:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:20,629 INFO L495 AbstractCegarLoop]: Abstraction has 1833 states and 3176 transitions. [2022-10-16 02:56:20,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 3176 transitions. [2022-10-16 02:56:20,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-10-16 02:56:20,635 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:20,636 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, 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, 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, 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] [2022-10-16 02:56:20,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:56:20,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:20,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1433109345, now seen corresponding path program 1 times [2022-10-16 02:56:20,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:20,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642014195] [2022-10-16 02:56:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:20,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:20,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642014195] [2022-10-16 02:56:20,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642014195] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:20,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:20,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:20,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174232983] [2022-10-16 02:56:20,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:20,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:20,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:20,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:20,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:20,950 INFO L87 Difference]: Start difference. First operand 1833 states and 3176 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:21,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:21,001 INFO L93 Difference]: Finished difference Result 3019 states and 5197 transitions. [2022-10-16 02:56:21,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:21,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 229 [2022-10-16 02:56:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:21,018 INFO L225 Difference]: With dead ends: 3019 [2022-10-16 02:56:21,018 INFO L226 Difference]: Without dead ends: 3019 [2022-10-16 02:56:21,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:21,020 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 265 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:21,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 2512 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2022-10-16 02:56:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3017. [2022-10-16 02:56:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 1.7228116710875332) internal successors, (5196), 3016 states have internal predecessors, (5196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:21,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 5196 transitions. [2022-10-16 02:56:21,101 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 5196 transitions. Word has length 229 [2022-10-16 02:56:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:21,102 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 5196 transitions. [2022-10-16 02:56:21,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 5196 transitions. [2022-10-16 02:56:21,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-10-16 02:56:21,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:21,109 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, 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, 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, 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] [2022-10-16 02:56:21,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:56:21,109 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:21,110 INFO L85 PathProgramCache]: Analyzing trace with hash 792603401, now seen corresponding path program 1 times [2022-10-16 02:56:21,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:21,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449070081] [2022-10-16 02:56:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:21,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:21,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:21,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449070081] [2022-10-16 02:56:21,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449070081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:21,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:21,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:21,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574634829] [2022-10-16 02:56:21,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:21,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:21,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:21,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:21,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:21,422 INFO L87 Difference]: Start difference. First operand 3017 states and 5196 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:21,488 INFO L93 Difference]: Finished difference Result 5291 states and 9053 transitions. [2022-10-16 02:56:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:21,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2022-10-16 02:56:21,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:21,519 INFO L225 Difference]: With dead ends: 5291 [2022-10-16 02:56:21,519 INFO L226 Difference]: Without dead ends: 5291 [2022-10-16 02:56:21,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:21,520 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 257 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:21,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 2513 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:21,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5291 states. [2022-10-16 02:56:21,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5291 to 5289. [2022-10-16 02:56:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 1.7118003025718609) internal successors, (9052), 5288 states have internal predecessors, (9052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:21,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 9052 transitions. [2022-10-16 02:56:21,675 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 9052 transitions. Word has length 233 [2022-10-16 02:56:21,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:21,675 INFO L495 AbstractCegarLoop]: Abstraction has 5289 states and 9052 transitions. [2022-10-16 02:56:21,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 9052 transitions. [2022-10-16 02:56:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-16 02:56:21,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:21,683 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, 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, 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, 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] [2022-10-16 02:56:21,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:56:21,683 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:21,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:21,684 INFO L85 PathProgramCache]: Analyzing trace with hash 108066417, now seen corresponding path program 1 times [2022-10-16 02:56:21,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:21,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62708370] [2022-10-16 02:56:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:22,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:22,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62708370] [2022-10-16 02:56:22,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62708370] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:22,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:22,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:56:22,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681830900] [2022-10-16 02:56:22,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:22,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:56:22,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:22,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:56:22,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:56:22,212 INFO L87 Difference]: Start difference. First operand 5289 states and 9052 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:22,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:22,966 INFO L93 Difference]: Finished difference Result 27387 states and 46893 transitions. [2022-10-16 02:56:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:56:22,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2022-10-16 02:56:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:23,105 INFO L225 Difference]: With dead ends: 27387 [2022-10-16 02:56:23,106 INFO L226 Difference]: Without dead ends: 27387 [2022-10-16 02:56:23,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:56:23,108 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 3267 mSDsluCounter, 11538 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 12816 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:23,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 12816 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:56:23,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27387 states. [2022-10-16 02:56:23,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27387 to 9848. [2022-10-16 02:56:23,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9848 states, 9847 states have (on average 1.7079313496496396) internal successors, (16818), 9847 states have internal predecessors, (16818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:23,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9848 states to 9848 states and 16818 transitions. [2022-10-16 02:56:23,679 INFO L78 Accepts]: Start accepts. Automaton has 9848 states and 16818 transitions. Word has length 237 [2022-10-16 02:56:23,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:23,680 INFO L495 AbstractCegarLoop]: Abstraction has 9848 states and 16818 transitions. [2022-10-16 02:56:23,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:23,680 INFO L276 IsEmpty]: Start isEmpty. Operand 9848 states and 16818 transitions. [2022-10-16 02:56:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-10-16 02:56:23,691 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:23,691 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, 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, 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, 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] [2022-10-16 02:56:23,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:56:23,692 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1083679653, now seen corresponding path program 1 times [2022-10-16 02:56:23,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:23,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648606849] [2022-10-16 02:56:23,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:24,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:24,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648606849] [2022-10-16 02:56:24,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648606849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:24,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:24,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:56:24,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426757038] [2022-10-16 02:56:24,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:24,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:56:24,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:56:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:56:24,084 INFO L87 Difference]: Start difference. First operand 9848 states and 16818 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:24,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:24,267 INFO L93 Difference]: Finished difference Result 19510 states and 33402 transitions. [2022-10-16 02:56:24,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:56:24,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 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 238 [2022-10-16 02:56:24,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:24,326 INFO L225 Difference]: With dead ends: 19510 [2022-10-16 02:56:24,326 INFO L226 Difference]: Without dead ends: 19510 [2022-10-16 02:56:24,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:56:24,328 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 916 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:24,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 4086 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19510 states. [2022-10-16 02:56:24,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19510 to 14646. [2022-10-16 02:56:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14646 states, 14645 states have (on average 1.7081597814953908) internal successors, (25016), 14645 states have internal predecessors, (25016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:24,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14646 states to 14646 states and 25016 transitions. [2022-10-16 02:56:24,849 INFO L78 Accepts]: Start accepts. Automaton has 14646 states and 25016 transitions. Word has length 238 [2022-10-16 02:56:24,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:24,850 INFO L495 AbstractCegarLoop]: Abstraction has 14646 states and 25016 transitions. [2022-10-16 02:56:24,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 14646 states and 25016 transitions. [2022-10-16 02:56:24,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:56:24,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:24,863 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, 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, 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, 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] [2022-10-16 02:56:24,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:56:24,863 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:24,864 INFO L85 PathProgramCache]: Analyzing trace with hash 786829641, now seen corresponding path program 1 times [2022-10-16 02:56:24,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:24,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168469397] [2022-10-16 02:56:24,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:24,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:25,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:25,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168469397] [2022-10-16 02:56:25,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168469397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:25,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:25,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:25,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294625500] [2022-10-16 02:56:25,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:25,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:25,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:25,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:25,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:25,087 INFO L87 Difference]: Start difference. First operand 14646 states and 25016 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:25,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:25,297 INFO L93 Difference]: Finished difference Result 22549 states and 38452 transitions. [2022-10-16 02:56:25,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:25,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2022-10-16 02:56:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:25,356 INFO L225 Difference]: With dead ends: 22549 [2022-10-16 02:56:25,357 INFO L226 Difference]: Without dead ends: 22549 [2022-10-16 02:56:25,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:25,358 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 290 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:25,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 2771 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:25,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22549 states. [2022-10-16 02:56:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22549 to 22547. [2022-10-16 02:56:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22547 states, 22546 states have (on average 1.7054466424199415) internal successors, (38451), 22546 states have internal predecessors, (38451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 38451 transitions. [2022-10-16 02:56:26,066 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 38451 transitions. Word has length 239 [2022-10-16 02:56:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:26,067 INFO L495 AbstractCegarLoop]: Abstraction has 22547 states and 38451 transitions. [2022-10-16 02:56:26,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:26,067 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 38451 transitions. [2022-10-16 02:56:26,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:56:26,075 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:26,075 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, 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, 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, 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] [2022-10-16 02:56:26,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:56:26,076 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:26,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash -259310295, now seen corresponding path program 1 times [2022-10-16 02:56:26,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:26,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429702711] [2022-10-16 02:56:26,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:26,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:26,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:26,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429702711] [2022-10-16 02:56:26,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429702711] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:26,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:26,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:26,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651606252] [2022-10-16 02:56:26,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:26,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:26,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:26,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:26,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:26,329 INFO L87 Difference]: Start difference. First operand 22547 states and 38451 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:26,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:26,590 INFO L93 Difference]: Finished difference Result 31817 states and 54108 transitions. [2022-10-16 02:56:26,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:26,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2022-10-16 02:56:26,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:26,675 INFO L225 Difference]: With dead ends: 31817 [2022-10-16 02:56:26,676 INFO L226 Difference]: Without dead ends: 31817 [2022-10-16 02:56:26,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:26,677 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 282 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:26,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2749 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:26,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31817 states. [2022-10-16 02:56:27,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31817 to 31815. [2022-10-16 02:56:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31815 states, 31814 states have (on average 1.7007292386999435) internal successors, (54107), 31814 states have internal predecessors, (54107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:27,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31815 states to 31815 states and 54107 transitions. [2022-10-16 02:56:27,723 INFO L78 Accepts]: Start accepts. Automaton has 31815 states and 54107 transitions. Word has length 239 [2022-10-16 02:56:27,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:27,723 INFO L495 AbstractCegarLoop]: Abstraction has 31815 states and 54107 transitions. [2022-10-16 02:56:27,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 31815 states and 54107 transitions. [2022-10-16 02:56:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:56:27,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:27,860 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, 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, 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, 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] [2022-10-16 02:56:27,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:56:27,861 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:27,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1955219721, now seen corresponding path program 1 times [2022-10-16 02:56:27,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:27,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354459177] [2022-10-16 02:56:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:27,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:28,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:28,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354459177] [2022-10-16 02:56:28,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354459177] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:28,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:28,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:28,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116426052] [2022-10-16 02:56:28,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:28,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:28,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:28,246 INFO L87 Difference]: Start difference. First operand 31815 states and 54107 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:28,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:28,470 INFO L93 Difference]: Finished difference Result 44749 states and 75876 transitions. [2022-10-16 02:56:28,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:28,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2022-10-16 02:56:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:28,591 INFO L225 Difference]: With dead ends: 44749 [2022-10-16 02:56:28,591 INFO L226 Difference]: Without dead ends: 44749 [2022-10-16 02:56:28,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:28,593 INFO L413 NwaCegarLoop]: 1480 mSDtfsCounter, 274 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:28,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 2718 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:28,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44749 states. [2022-10-16 02:56:29,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44749 to 44747. [2022-10-16 02:56:29,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44747 states, 44746 states have (on average 1.69568229562419) internal successors, (75875), 44746 states have internal predecessors, (75875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:29,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44747 states to 44747 states and 75875 transitions. [2022-10-16 02:56:30,000 INFO L78 Accepts]: Start accepts. Automaton has 44747 states and 75875 transitions. Word has length 239 [2022-10-16 02:56:30,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:30,000 INFO L495 AbstractCegarLoop]: Abstraction has 44747 states and 75875 transitions. [2022-10-16 02:56:30,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:30,001 INFO L276 IsEmpty]: Start isEmpty. Operand 44747 states and 75875 transitions. [2022-10-16 02:56:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:56:30,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:30,006 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, 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, 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, 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] [2022-10-16 02:56:30,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:56:30,007 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:30,008 INFO L85 PathProgramCache]: Analyzing trace with hash 583218409, now seen corresponding path program 1 times [2022-10-16 02:56:30,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:30,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417782718] [2022-10-16 02:56:30,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:30,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:30,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:30,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:30,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417782718] [2022-10-16 02:56:30,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417782718] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:30,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:30,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:30,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574359118] [2022-10-16 02:56:30,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:30,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:30,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:30,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:30,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:30,382 INFO L87 Difference]: Start difference. First operand 44747 states and 75875 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:30,802 INFO L93 Difference]: Finished difference Result 62697 states and 105962 transitions. [2022-10-16 02:56:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2022-10-16 02:56:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:30,987 INFO L225 Difference]: With dead ends: 62697 [2022-10-16 02:56:30,987 INFO L226 Difference]: Without dead ends: 62697 [2022-10-16 02:56:30,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:30,989 INFO L413 NwaCegarLoop]: 1448 mSDtfsCounter, 266 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:30,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 2687 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:31,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62697 states. [2022-10-16 02:56:32,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62697 to 62695. [2022-10-16 02:56:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62695 states, 62694 states have (on average 1.6901298369859954) internal successors, (105961), 62694 states have internal predecessors, (105961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62695 states to 62695 states and 105961 transitions. [2022-10-16 02:56:32,720 INFO L78 Accepts]: Start accepts. Automaton has 62695 states and 105961 transitions. Word has length 239 [2022-10-16 02:56:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:32,722 INFO L495 AbstractCegarLoop]: Abstraction has 62695 states and 105961 transitions. [2022-10-16 02:56:32,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:32,722 INFO L276 IsEmpty]: Start isEmpty. Operand 62695 states and 105961 transitions. [2022-10-16 02:56:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:56:32,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:32,731 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, 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, 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, 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] [2022-10-16 02:56:32,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:56:32,732 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:32,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1125515465, now seen corresponding path program 1 times [2022-10-16 02:56:32,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:32,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428805845] [2022-10-16 02:56:32,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:32,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:32,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:32,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428805845] [2022-10-16 02:56:32,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428805845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:32,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:32,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:56:32,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475910454] [2022-10-16 02:56:32,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:32,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:56:32,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:32,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:56:32,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:32,992 INFO L87 Difference]: Start difference. First operand 62695 states and 105961 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:33,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:33,583 INFO L93 Difference]: Finished difference Result 87449 states and 147250 transitions. [2022-10-16 02:56:33,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:56:33,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2022-10-16 02:56:33,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:33,933 INFO L225 Difference]: With dead ends: 87449 [2022-10-16 02:56:33,933 INFO L226 Difference]: Without dead ends: 87449 [2022-10-16 02:56:33,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:56:33,935 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 258 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:33,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 2656 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87449 states. [2022-10-16 02:56:35,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87449 to 87447. [2022-10-16 02:56:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87447 states, 87446 states have (on average 1.6838849118313015) internal successors, (147249), 87446 states have internal predecessors, (147249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87447 states to 87447 states and 147249 transitions. [2022-10-16 02:56:35,953 INFO L78 Accepts]: Start accepts. Automaton has 87447 states and 147249 transitions. Word has length 239 [2022-10-16 02:56:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:35,953 INFO L495 AbstractCegarLoop]: Abstraction has 87447 states and 147249 transitions. [2022-10-16 02:56:35,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:35,954 INFO L276 IsEmpty]: Start isEmpty. Operand 87447 states and 147249 transitions. [2022-10-16 02:56:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:56:35,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:35,964 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, 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, 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, 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] [2022-10-16 02:56:35,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:56:35,964 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:35,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:35,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1431923240, now seen corresponding path program 1 times [2022-10-16 02:56:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:35,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834864900] [2022-10-16 02:56:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:35,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:36,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:36,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834864900] [2022-10-16 02:56:36,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834864900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:36,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:36,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:56:36,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074816590] [2022-10-16 02:56:36,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:36,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:56:36,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:56:36,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:56:36,280 INFO L87 Difference]: Start difference. First operand 87447 states and 147249 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:37,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:37,495 INFO L93 Difference]: Finished difference Result 201239 states and 338398 transitions. [2022-10-16 02:56:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:56:37,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2022-10-16 02:56:37,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:37,911 INFO L225 Difference]: With dead ends: 201239 [2022-10-16 02:56:37,911 INFO L226 Difference]: Without dead ends: 201239 [2022-10-16 02:56:37,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:56:37,914 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 914 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 4083 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:37,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 4083 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:56:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201239 states. [2022-10-16 02:56:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201239 to 144074. [2022-10-16 02:56:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144074 states, 144073 states have (on average 1.6789266552372755) internal successors, (241888), 144073 states have internal predecessors, (241888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144074 states to 144074 states and 241888 transitions. [2022-10-16 02:56:41,305 INFO L78 Accepts]: Start accepts. Automaton has 144074 states and 241888 transitions. Word has length 239 [2022-10-16 02:56:41,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:41,305 INFO L495 AbstractCegarLoop]: Abstraction has 144074 states and 241888 transitions. [2022-10-16 02:56:41,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 144074 states and 241888 transitions. [2022-10-16 02:56:41,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-16 02:56:41,309 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:41,310 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, 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, 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, 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] [2022-10-16 02:56:41,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:56:41,310 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:41,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:41,311 INFO L85 PathProgramCache]: Analyzing trace with hash -488423108, now seen corresponding path program 1 times [2022-10-16 02:56:41,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:41,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797135860] [2022-10-16 02:56:41,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:41,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:42,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:42,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797135860] [2022-10-16 02:56:42,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797135860] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:42,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:42,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:56:42,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725633744] [2022-10-16 02:56:42,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:42,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:56:42,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:56:42,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:56:42,132 INFO L87 Difference]: Start difference. First operand 144074 states and 241888 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:43,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:43,906 INFO L93 Difference]: Finished difference Result 330942 states and 554895 transitions. [2022-10-16 02:56:43,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:56:43,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2022-10-16 02:56:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:44,556 INFO L225 Difference]: With dead ends: 330942 [2022-10-16 02:56:44,556 INFO L226 Difference]: Without dead ends: 330942 [2022-10-16 02:56:44,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:56:44,557 INFO L413 NwaCegarLoop]: 1274 mSDtfsCounter, 912 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:44,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 3952 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:56:45,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330942 states. [2022-10-16 02:56:48,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330942 to 237065. [2022-10-16 02:56:49,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237065 states, 237064 states have (on average 1.6740078628556) internal successors, (396847), 237064 states have internal predecessors, (396847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:50,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237065 states to 237065 states and 396847 transitions. [2022-10-16 02:56:50,444 INFO L78 Accepts]: Start accepts. Automaton has 237065 states and 396847 transitions. Word has length 240 [2022-10-16 02:56:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:50,449 INFO L495 AbstractCegarLoop]: Abstraction has 237065 states and 396847 transitions. [2022-10-16 02:56:50,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 237065 states and 396847 transitions. [2022-10-16 02:56:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-16 02:56:50,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:50,455 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, 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, 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, 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] [2022-10-16 02:56:50,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:56:50,455 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash 279386591, now seen corresponding path program 1 times [2022-10-16 02:56:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:50,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296511336] [2022-10-16 02:56:50,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:50,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:50,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:50,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:50,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296511336] [2022-10-16 02:56:50,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296511336] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:50,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:50,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:56:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353292024] [2022-10-16 02:56:50,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:50,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:56:50,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:56:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:56:50,761 INFO L87 Difference]: Start difference. First operand 237065 states and 396847 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:53,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:53,992 INFO L93 Difference]: Finished difference Result 541713 states and 905692 transitions. [2022-10-16 02:56:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:56:53,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-16 02:56:53,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:55,072 INFO L225 Difference]: With dead ends: 541713 [2022-10-16 02:56:55,072 INFO L226 Difference]: Without dead ends: 541713 [2022-10-16 02:56:55,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:56:55,074 INFO L413 NwaCegarLoop]: 1275 mSDtfsCounter, 910 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 4083 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:55,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 4083 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:56:55,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541713 states. [2022-10-16 02:57:01,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541713 to 388664. [2022-10-16 02:57:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388664 states, 388663 states have (on average 1.6691529679954098) internal successors, (648738), 388663 states have internal predecessors, (648738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388664 states to 388664 states and 648738 transitions. [2022-10-16 02:57:04,707 INFO L78 Accepts]: Start accepts. Automaton has 388664 states and 648738 transitions. Word has length 241 [2022-10-16 02:57:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:57:04,712 INFO L495 AbstractCegarLoop]: Abstraction has 388664 states and 648738 transitions. [2022-10-16 02:57:04,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 388664 states and 648738 transitions. [2022-10-16 02:57:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-10-16 02:57:04,714 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:57:04,714 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, 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, 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, 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] [2022-10-16 02:57:04,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:57:04,714 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:57:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:57:04,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1519312173, now seen corresponding path program 1 times [2022-10-16 02:57:04,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:57:04,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870202725] [2022-10-16 02:57:04,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:57:04,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:57:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:57:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:57:04,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:57:04,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870202725] [2022-10-16 02:57:04,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870202725] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:57:04,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:57:04,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:57:04,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789606433] [2022-10-16 02:57:04,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:57:04,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:57:04,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:57:04,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:57:04,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:57:04,983 INFO L87 Difference]: Start difference. First operand 388664 states and 648738 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:09,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:57:09,614 INFO L93 Difference]: Finished difference Result 878756 states and 1465073 transitions. [2022-10-16 02:57:09,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:57:09,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 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 242 [2022-10-16 02:57:09,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:57:12,834 INFO L225 Difference]: With dead ends: 878756 [2022-10-16 02:57:12,848 INFO L226 Difference]: Without dead ends: 878756 [2022-10-16 02:57:12,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:57:12,850 INFO L413 NwaCegarLoop]: 1275 mSDtfsCounter, 908 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 4085 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:57:12,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 4085 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:57:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878756 states. [2022-10-16 02:57:24,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878756 to 632539. [2022-10-16 02:57:27,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632539 states, 632538 states have (on average 1.6644264850491195) internal successors, (1052813), 632538 states have internal predecessors, (1052813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632539 states to 632539 states and 1052813 transitions. [2022-10-16 02:57:31,348 INFO L78 Accepts]: Start accepts. Automaton has 632539 states and 1052813 transitions. Word has length 242 [2022-10-16 02:57:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:57:31,348 INFO L495 AbstractCegarLoop]: Abstraction has 632539 states and 1052813 transitions. [2022-10-16 02:57:31,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 632539 states and 1052813 transitions. [2022-10-16 02:57:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-10-16 02:57:31,351 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:57:31,351 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, 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, 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, 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] [2022-10-16 02:57:31,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:57:31,352 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:57:31,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:57:31,353 INFO L85 PathProgramCache]: Analyzing trace with hash -2074853333, now seen corresponding path program 1 times [2022-10-16 02:57:31,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:57:31,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871226982] [2022-10-16 02:57:31,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:57:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:57:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:57:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:57:31,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:57:31,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871226982] [2022-10-16 02:57:31,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871226982] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:57:31,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:57:31,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:57:31,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946700059] [2022-10-16 02:57:31,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:57:31,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:57:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:57:31,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:57:31,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:57:31,977 INFO L87 Difference]: Start difference. First operand 632539 states and 1052813 transitions. Second operand has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:57:36,231 INFO L93 Difference]: Finished difference Result 632541 states and 1049689 transitions. [2022-10-16 02:57:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:57:36,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 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 244 [2022-10-16 02:57:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:57:37,410 INFO L225 Difference]: With dead ends: 632541 [2022-10-16 02:57:37,410 INFO L226 Difference]: Without dead ends: 632541 [2022-10-16 02:57:37,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:57:37,411 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 1573 mSDsluCounter, 4956 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 6234 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:57:37,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 6234 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:57:38,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632541 states. [2022-10-16 02:57:46,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632541 to 632539. [2022-10-16 02:57:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632539 states, 632538 states have (on average 1.6594860704020944) internal successors, (1049688), 632538 states have internal predecessors, (1049688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:54,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632539 states to 632539 states and 1049688 transitions. [2022-10-16 02:57:54,659 INFO L78 Accepts]: Start accepts. Automaton has 632539 states and 1049688 transitions. Word has length 244 [2022-10-16 02:57:54,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:57:54,660 INFO L495 AbstractCegarLoop]: Abstraction has 632539 states and 1049688 transitions. [2022-10-16 02:57:54,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 632539 states and 1049688 transitions. [2022-10-16 02:57:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-10-16 02:57:54,665 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:57:54,668 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, 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, 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, 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] [2022-10-16 02:57:54,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:57:54,668 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:57:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:57:54,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1712412258, now seen corresponding path program 1 times [2022-10-16 02:57:54,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:57:54,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283749202] [2022-10-16 02:57:54,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:57:54,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:57:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:57:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:57:55,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:57:55,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283749202] [2022-10-16 02:57:55,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283749202] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:57:55,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:57:55,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:57:55,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553087652] [2022-10-16 02:57:55,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:57:55,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:57:55,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:57:55,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:57:55,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:57:55,847 INFO L87 Difference]: Start difference. First operand 632539 states and 1049688 transitions. Second operand has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:58:03,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:58:03,812 INFO L93 Difference]: Finished difference Result 1237981 states and 2045634 transitions. [2022-10-16 02:58:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:58:03,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 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 247 [2022-10-16 02:58:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:58:08,154 INFO L225 Difference]: With dead ends: 1237981 [2022-10-16 02:58:08,154 INFO L226 Difference]: Without dead ends: 1237981 [2022-10-16 02:58:08,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:58:08,165 INFO L413 NwaCegarLoop]: 1271 mSDtfsCounter, 527 mSDsluCounter, 6230 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 7501 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:58:08,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 7501 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:58:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237981 states. [2022-10-16 02:58:32,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237981 to 1237979. [2022-10-16 02:58:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237979 states, 1237978 states have (on average 1.6523985078894778) internal successors, (2045633), 1237978 states have internal predecessors, (2045633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:58:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237979 states to 1237979 states and 2045633 transitions. [2022-10-16 02:58:44,812 INFO L78 Accepts]: Start accepts. Automaton has 1237979 states and 2045633 transitions. Word has length 247 [2022-10-16 02:58:44,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:58:44,814 INFO L495 AbstractCegarLoop]: Abstraction has 1237979 states and 2045633 transitions. [2022-10-16 02:58:44,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:58:44,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1237979 states and 2045633 transitions. [2022-10-16 02:58:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-10-16 02:58:44,820 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:58:44,822 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, 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, 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, 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] [2022-10-16 02:58:44,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:58:44,822 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:58:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:58:44,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1111058836, now seen corresponding path program 1 times [2022-10-16 02:58:44,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:58:44,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657120147] [2022-10-16 02:58:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:58:44,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:58:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:58:46,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:58:46,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:58:46,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657120147] [2022-10-16 02:58:46,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657120147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:58:46,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:58:46,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:58:46,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094812909] [2022-10-16 02:58:46,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:58:46,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:58:46,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:58:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:58:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:58:46,618 INFO L87 Difference]: Start difference. First operand 1237979 states and 2045633 transitions. Second operand has 8 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)