/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_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:20:53,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:20:53,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:20:53,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:20:53,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:20:53,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:20:53,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:20:53,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:20:53,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:20:53,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:20:53,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:20:53,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:20:53,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:20:53,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:20:53,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:20:53,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:20:53,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:20:53,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:20:53,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:20:53,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:20:53,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:20:53,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:20:53,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:20:53,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:20:53,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:20:53,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:20:53,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:20:53,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:20:53,930 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 [2022-10-15 17:20:53,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:20:53,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:20:53,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:20:53,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:20:53,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:20:53,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:20:53,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:20:53,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:20:53,997 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:20:53,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:20:53,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:20:53,999 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:20:53,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:20:53,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:20:53,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:20:53,999 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:20:53,999 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:20:54,000 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:20:54,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:20:54,000 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:20:54,000 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:20:54,001 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:20:54,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:20:54,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:20:54,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:20:54,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:20:54,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:20:54,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:20:54,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:20:54,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:20:54,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:20:54,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:20:54,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:20:54,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:20:54,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:20:54,476 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:20:54,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2022-10-15 17:20:54,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/354d7338d/ed38b82dc98b4ecaa4401813ca0e10ae/FLAG864805efa [2022-10-15 17:20:55,348 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:20:55,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2022-10-15 17:20:55,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/354d7338d/ed38b82dc98b4ecaa4401813ca0e10ae/FLAG864805efa [2022-10-15 17:20:55,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/354d7338d/ed38b82dc98b4ecaa4401813ca0e10ae [2022-10-15 17:20:55,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:20:55,648 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:20:55,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:20:55,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:20:55,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:20:55,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:20:55" (1/1) ... [2022-10-15 17:20:55,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6edfd748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:55, skipping insertion in model container [2022-10-15 17:20:55,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:20:55" (1/1) ... [2022-10-15 17:20:55,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:20:55,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:20:56,008 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_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c[12751,12764] [2022-10-15 17:20:56,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:20:56,029 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:20:56,103 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_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c[12751,12764] [2022-10-15 17:20:56,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:20:56,130 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:20:56,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56 WrapperNode [2022-10-15 17:20:56,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:20:56,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:20:56,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:20:56,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:20:56,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,217 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 390 [2022-10-15 17:20:56,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:20:56,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:20:56,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:20:56,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:20:56,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:20:56,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:20:56,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:20:56,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:20:56,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (1/1) ... [2022-10-15 17:20:56,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:20:56,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:20:56,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:20:56,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:20:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:20:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:20:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:20:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:20:56,684 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:20:56,693 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:20:57,749 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:20:57,763 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:20:57,764 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:20:57,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:20:57 BoogieIcfgContainer [2022-10-15 17:20:57,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:20:57,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:20:57,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:20:57,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:20:57,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:20:55" (1/3) ... [2022-10-15 17:20:57,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d704d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:20:57, skipping insertion in model container [2022-10-15 17:20:57,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:56" (2/3) ... [2022-10-15 17:20:57,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d704d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:20:57, skipping insertion in model container [2022-10-15 17:20:57,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:20:57" (3/3) ... [2022-10-15 17:20:57,783 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2022-10-15 17:20:57,813 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:20:57,813 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:20:57,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:20:57,901 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;@33fdc5fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:20:57,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:20:57,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 122 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:20:57,927 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:57,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:57,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1256411791, now seen corresponding path program 1 times [2022-10-15 17:20:57,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:57,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337164278] [2022-10-15 17:20:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:57,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:58,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:58,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337164278] [2022-10-15 17:20:58,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337164278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:58,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:58,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:20:58,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580731028] [2022-10-15 17:20:58,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:58,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:20:58,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:58,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:20:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:20:58,291 INFO L87 Difference]: Start difference. First operand has 123 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 122 states have internal predecessors, (206), 0 states have call successors, (0), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:58,329 INFO L93 Difference]: Finished difference Result 123 states and 203 transitions. [2022-10-15 17:20:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:20:58,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 17:20:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:58,353 INFO L225 Difference]: With dead ends: 123 [2022-10-15 17:20:58,354 INFO L226 Difference]: Without dead ends: 121 [2022-10-15 17:20:58,357 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 [2022-10-15 17:20:58,363 INFO L413 NwaCegarLoop]: 203 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, 203 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:58,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-15 17:20:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-10-15 17:20:58,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 119 states have (on average 1.6890756302521008) internal successors, (201), 120 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:58,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 201 transitions. [2022-10-15 17:20:58,437 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 201 transitions. Word has length 10 [2022-10-15 17:20:58,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:58,439 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 201 transitions. [2022-10-15 17:20:58,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 201 transitions. [2022-10-15 17:20:58,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:20:58,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:58,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:58,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:20:58,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:58,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:58,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1254564749, now seen corresponding path program 1 times [2022-10-15 17:20:58,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:58,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720575771] [2022-10-15 17:20:58,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:58,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:58,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:58,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720575771] [2022-10-15 17:20:58,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720575771] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:58,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:58,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:20:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098292470] [2022-10-15 17:20:58,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:58,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:20:58,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:58,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:20:58,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:20:58,792 INFO L87 Difference]: Start difference. First operand 121 states and 201 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:58,980 INFO L93 Difference]: Finished difference Result 124 states and 203 transitions. [2022-10-15 17:20:58,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:20:58,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 17:20:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:58,991 INFO L225 Difference]: With dead ends: 124 [2022-10-15 17:20:58,991 INFO L226 Difference]: Without dead ends: 121 [2022-10-15 17:20:58,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:20:58,996 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:58,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 761 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:59,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-15 17:20:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-10-15 17:20:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 119 states have (on average 1.4201680672268908) internal successors, (169), 120 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 169 transitions. [2022-10-15 17:20:59,030 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 169 transitions. Word has length 10 [2022-10-15 17:20:59,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:59,031 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 169 transitions. [2022-10-15 17:20:59,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 169 transitions. [2022-10-15 17:20:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 17:20:59,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:59,041 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] [2022-10-15 17:20:59,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:20:59,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:59,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash -977809858, now seen corresponding path program 1 times [2022-10-15 17:20:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:59,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006507933] [2022-10-15 17:20:59,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:59,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:59,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:59,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006507933] [2022-10-15 17:20:59,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006507933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:59,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:59,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130596706] [2022-10-15 17:20:59,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:59,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:59,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:59,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:59,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:59,234 INFO L87 Difference]: Start difference. First operand 121 states and 169 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:59,300 INFO L93 Difference]: Finished difference Result 201 states and 297 transitions. [2022-10-15 17:20:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:59,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-15 17:20:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:59,310 INFO L225 Difference]: With dead ends: 201 [2022-10-15 17:20:59,310 INFO L226 Difference]: Without dead ends: 201 [2022-10-15 17:20:59,311 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 [2022-10-15 17:20:59,316 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 127 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:59,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 330 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:59,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-15 17:20:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 122. [2022-10-15 17:20:59,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.4166666666666667) internal successors, (170), 121 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 170 transitions. [2022-10-15 17:20:59,359 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 170 transitions. Word has length 41 [2022-10-15 17:20:59,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:59,363 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 170 transitions. [2022-10-15 17:20:59,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,364 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 170 transitions. [2022-10-15 17:20:59,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 17:20:59,369 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:59,369 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] [2022-10-15 17:20:59,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:20:59,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:59,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:59,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1850253404, now seen corresponding path program 1 times [2022-10-15 17:20:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:59,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722407310] [2022-10-15 17:20:59,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:59,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:59,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722407310] [2022-10-15 17:20:59,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722407310] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:59,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:59,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:59,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628943619] [2022-10-15 17:20:59,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:59,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:59,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:59,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:59,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:59,654 INFO L87 Difference]: Start difference. First operand 122 states and 170 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:59,689 INFO L93 Difference]: Finished difference Result 193 states and 280 transitions. [2022-10-15 17:20:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:59,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-10-15 17:20:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:59,693 INFO L225 Difference]: With dead ends: 193 [2022-10-15 17:20:59,693 INFO L226 Difference]: Without dead ends: 193 [2022-10-15 17:20:59,694 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 [2022-10-15 17:20:59,696 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 119 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 398 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 [2022-10-15 17:20:59,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 398 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:59,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-10-15 17:20:59,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2022-10-15 17:20:59,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 186 states have (on average 1.489247311827957) internal successors, (277), 187 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 277 transitions. [2022-10-15 17:20:59,714 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 277 transitions. Word has length 64 [2022-10-15 17:20:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:59,715 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 277 transitions. [2022-10-15 17:20:59,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 277 transitions. [2022-10-15 17:20:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:20:59,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:59,720 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] [2022-10-15 17:20:59,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:20:59,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:59,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:59,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1736606100, now seen corresponding path program 1 times [2022-10-15 17:20:59,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:59,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726068236] [2022-10-15 17:20:59,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:59,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:59,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:59,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726068236] [2022-10-15 17:20:59,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726068236] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:59,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:59,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:59,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539623526] [2022-10-15 17:20:59,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:59,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:59,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:59,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:59,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:59,996 INFO L87 Difference]: Start difference. First operand 188 states and 277 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:00,040 INFO L93 Difference]: Finished difference Result 313 states and 473 transitions. [2022-10-15 17:21:00,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:00,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-10-15 17:21:00,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:00,051 INFO L225 Difference]: With dead ends: 313 [2022-10-15 17:21:00,052 INFO L226 Difference]: Without dead ends: 313 [2022-10-15 17:21:00,053 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 [2022-10-15 17:21:00,063 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 114 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 389 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 [2022-10-15 17:21:00,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 389 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:00,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-10-15 17:21:00,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 308. [2022-10-15 17:21:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 306 states have (on average 1.5359477124183007) internal successors, (470), 307 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 470 transitions. [2022-10-15 17:21:00,106 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 470 transitions. Word has length 65 [2022-10-15 17:21:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:00,108 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 470 transitions. [2022-10-15 17:21:00,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 470 transitions. [2022-10-15 17:21:00,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 17:21:00,118 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:00,119 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] [2022-10-15 17:21:00,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:21:00,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:00,127 INFO L85 PathProgramCache]: Analyzing trace with hash 245456436, now seen corresponding path program 1 times [2022-10-15 17:21:00,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:00,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18743746] [2022-10-15 17:21:00,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:00,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:00,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:00,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18743746] [2022-10-15 17:21:00,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18743746] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:00,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:00,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:00,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78391862] [2022-10-15 17:21:00,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:00,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:00,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:00,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:00,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:00,377 INFO L87 Difference]: Start difference. First operand 308 states and 470 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:00,403 INFO L93 Difference]: Finished difference Result 529 states and 817 transitions. [2022-10-15 17:21:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:00,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-10-15 17:21:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:00,408 INFO L225 Difference]: With dead ends: 529 [2022-10-15 17:21:00,408 INFO L226 Difference]: Without dead ends: 529 [2022-10-15 17:21:00,409 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 [2022-10-15 17:21:00,410 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 109 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 380 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 [2022-10-15 17:21:00,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 380 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-10-15 17:21:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 524. [2022-10-15 17:21:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 522 states have (on average 1.5593869731800767) internal successors, (814), 523 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 814 transitions. [2022-10-15 17:21:00,432 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 814 transitions. Word has length 66 [2022-10-15 17:21:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:00,433 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 814 transitions. [2022-10-15 17:21:00,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 814 transitions. [2022-10-15 17:21:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 17:21:00,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:00,435 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] [2022-10-15 17:21:00,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:21:00,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:00,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:00,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2021301796, now seen corresponding path program 1 times [2022-10-15 17:21:00,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:00,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487728912] [2022-10-15 17:21:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:00,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:00,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:00,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487728912] [2022-10-15 17:21:00,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487728912] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:00,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:00,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:00,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848208910] [2022-10-15 17:21:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:00,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:00,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:00,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:00,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:00,543 INFO L87 Difference]: Start difference. First operand 524 states and 814 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:00,570 INFO L93 Difference]: Finished difference Result 913 states and 1421 transitions. [2022-10-15 17:21:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:00,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-15 17:21:00,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:00,578 INFO L225 Difference]: With dead ends: 913 [2022-10-15 17:21:00,579 INFO L226 Difference]: Without dead ends: 913 [2022-10-15 17:21:00,579 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 [2022-10-15 17:21:00,580 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 104 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 371 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 [2022-10-15 17:21:00,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 371 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:00,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-10-15 17:21:00,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 908. [2022-10-15 17:21:00,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 906 states have (on average 1.565121412803532) internal successors, (1418), 907 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1418 transitions. [2022-10-15 17:21:00,618 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1418 transitions. Word has length 67 [2022-10-15 17:21:00,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:00,619 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1418 transitions. [2022-10-15 17:21:00,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,620 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1418 transitions. [2022-10-15 17:21:00,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 17:21:00,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:00,622 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] [2022-10-15 17:21:00,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:21:00,622 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:00,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1960792892, now seen corresponding path program 1 times [2022-10-15 17:21:00,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:00,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782165378] [2022-10-15 17:21:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:00,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:00,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:00,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782165378] [2022-10-15 17:21:00,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782165378] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:00,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:00,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:00,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813494738] [2022-10-15 17:21:00,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:00,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:00,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:00,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:00,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:00,745 INFO L87 Difference]: Start difference. First operand 908 states and 1418 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:00,778 INFO L93 Difference]: Finished difference Result 1585 states and 2461 transitions. [2022-10-15 17:21:00,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:00,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-15 17:21:00,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:00,791 INFO L225 Difference]: With dead ends: 1585 [2022-10-15 17:21:00,791 INFO L226 Difference]: Without dead ends: 1585 [2022-10-15 17:21:00,792 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 [2022-10-15 17:21:00,794 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 99 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 362 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 [2022-10-15 17:21:00,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 362 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:00,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-10-15 17:21:00,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1580. [2022-10-15 17:21:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1578 states have (on average 1.5576679340937896) internal successors, (2458), 1579 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2458 transitions. [2022-10-15 17:21:00,913 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2458 transitions. Word has length 68 [2022-10-15 17:21:00,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:00,916 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 2458 transitions. [2022-10-15 17:21:00,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2458 transitions. [2022-10-15 17:21:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:21:00,918 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:00,919 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] [2022-10-15 17:21:00,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:21:00,919 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:00,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1083012428, now seen corresponding path program 1 times [2022-10-15 17:21:00,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:00,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293004001] [2022-10-15 17:21:00,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:00,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:01,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:01,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293004001] [2022-10-15 17:21:01,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293004001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:01,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:01,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:21:01,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396084676] [2022-10-15 17:21:01,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:01,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:21:01,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:01,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:21:01,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:01,261 INFO L87 Difference]: Start difference. First operand 1580 states and 2458 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:01,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:01,559 INFO L93 Difference]: Finished difference Result 9285 states and 14489 transitions. [2022-10-15 17:21:01,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:21:01,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-10-15 17:21:01,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:01,626 INFO L225 Difference]: With dead ends: 9285 [2022-10-15 17:21:01,627 INFO L226 Difference]: Without dead ends: 9285 [2022-10-15 17:21:01,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:21:01,628 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1343 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:01,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 1797 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:01,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2022-10-15 17:21:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 3116. [2022-10-15 17:21:01,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.5446371226718048) internal successors, (4810), 3115 states have internal predecessors, (4810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:01,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4810 transitions. [2022-10-15 17:21:01,883 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4810 transitions. Word has length 69 [2022-10-15 17:21:01,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:01,884 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4810 transitions. [2022-10-15 17:21:01,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:01,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4810 transitions. [2022-10-15 17:21:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 17:21:01,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:01,886 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] [2022-10-15 17:21:01,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:21:01,887 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:01,888 INFO L85 PathProgramCache]: Analyzing trace with hash 403029886, now seen corresponding path program 1 times [2022-10-15 17:21:01,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:01,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921786647] [2022-10-15 17:21:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:01,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:02,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:02,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921786647] [2022-10-15 17:21:02,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921786647] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:02,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:02,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:21:02,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266258353] [2022-10-15 17:21:02,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:02,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:21:02,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:02,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:21:02,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:02,227 INFO L87 Difference]: Start difference. First operand 3116 states and 4810 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:02,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:02,489 INFO L93 Difference]: Finished difference Result 13664 states and 20790 transitions. [2022-10-15 17:21:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:21:02,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-10-15 17:21:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:02,591 INFO L225 Difference]: With dead ends: 13664 [2022-10-15 17:21:02,591 INFO L226 Difference]: Without dead ends: 13664 [2022-10-15 17:21:02,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:02,593 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 665 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:02,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 874 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13664 states. [2022-10-15 17:21:03,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13664 to 13644. [2022-10-15 17:21:03,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13644 states, 13642 states have (on average 1.5230904559448761) internal successors, (20778), 13643 states have internal predecessors, (20778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:03,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13644 states to 13644 states and 20778 transitions. [2022-10-15 17:21:03,251 INFO L78 Accepts]: Start accepts. Automaton has 13644 states and 20778 transitions. Word has length 70 [2022-10-15 17:21:03,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:03,252 INFO L495 AbstractCegarLoop]: Abstraction has 13644 states and 20778 transitions. [2022-10-15 17:21:03,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 13644 states and 20778 transitions. [2022-10-15 17:21:03,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:21:03,254 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:03,254 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] [2022-10-15 17:21:03,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:21:03,255 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:03,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:03,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1255275453, now seen corresponding path program 1 times [2022-10-15 17:21:03,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:03,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589267270] [2022-10-15 17:21:03,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:03,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:03,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:03,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:03,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589267270] [2022-10-15 17:21:03,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589267270] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:03,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:03,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:03,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709931424] [2022-10-15 17:21:03,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:03,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:03,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:03,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:03,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:03,789 INFO L87 Difference]: Start difference. First operand 13644 states and 20778 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:04,078 INFO L93 Difference]: Finished difference Result 28527 states and 42476 transitions. [2022-10-15 17:21:04,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:21:04,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-10-15 17:21:04,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:04,206 INFO L225 Difference]: With dead ends: 28527 [2022-10-15 17:21:04,206 INFO L226 Difference]: Without dead ends: 28527 [2022-10-15 17:21:04,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:21:04,208 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 372 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:04,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 737 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:04,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28527 states. [2022-10-15 17:21:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28527 to 14604. [2022-10-15 17:21:05,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14604 states, 14602 states have (on average 1.4887001780578002) internal successors, (21738), 14603 states have internal predecessors, (21738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:05,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14604 states to 14604 states and 21738 transitions. [2022-10-15 17:21:05,420 INFO L78 Accepts]: Start accepts. Automaton has 14604 states and 21738 transitions. Word has length 71 [2022-10-15 17:21:05,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:05,421 INFO L495 AbstractCegarLoop]: Abstraction has 14604 states and 21738 transitions. [2022-10-15 17:21:05,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 14604 states and 21738 transitions. [2022-10-15 17:21:05,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:21:05,431 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:05,431 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] [2022-10-15 17:21:05,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:21:05,432 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:05,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:05,442 INFO L85 PathProgramCache]: Analyzing trace with hash -206254681, now seen corresponding path program 1 times [2022-10-15 17:21:05,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:05,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450535632] [2022-10-15 17:21:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:05,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:05,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:05,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450535632] [2022-10-15 17:21:05,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450535632] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:05,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:05,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:05,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608222914] [2022-10-15 17:21:05,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:05,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:05,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:05,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:05,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:05,595 INFO L87 Difference]: Start difference. First operand 14604 states and 21738 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:05,853 INFO L93 Difference]: Finished difference Result 20962 states and 31102 transitions. [2022-10-15 17:21:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:05,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-15 17:21:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:05,933 INFO L225 Difference]: With dead ends: 20962 [2022-10-15 17:21:05,934 INFO L226 Difference]: Without dead ends: 20962 [2022-10-15 17:21:05,935 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 [2022-10-15 17:21:05,936 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 90 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:05,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 338 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:05,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20962 states. [2022-10-15 17:21:06,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20962 to 20957. [2022-10-15 17:21:06,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20957 states, 20955 states have (on average 1.4840849439274637) internal successors, (31099), 20956 states have internal predecessors, (31099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20957 states to 20957 states and 31099 transitions. [2022-10-15 17:21:06,694 INFO L78 Accepts]: Start accepts. Automaton has 20957 states and 31099 transitions. Word has length 72 [2022-10-15 17:21:06,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:06,695 INFO L495 AbstractCegarLoop]: Abstraction has 20957 states and 31099 transitions. [2022-10-15 17:21:06,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:06,695 INFO L276 IsEmpty]: Start isEmpty. Operand 20957 states and 31099 transitions. [2022-10-15 17:21:06,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 17:21:06,697 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:06,697 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] [2022-10-15 17:21:06,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:21:06,698 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash 374212466, now seen corresponding path program 1 times [2022-10-15 17:21:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:06,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468002647] [2022-10-15 17:21:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:06,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:06,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:06,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:06,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468002647] [2022-10-15 17:21:06,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468002647] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:06,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090079799] [2022-10-15 17:21:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:06,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:06,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:06,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:21:06,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:21:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:07,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:21:07,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:21:07,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:21:07,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090079799] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:07,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:21:07,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 17:21:07,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143630267] [2022-10-15 17:21:07,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:07,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:07,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:07,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:07,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:07,285 INFO L87 Difference]: Start difference. First operand 20957 states and 31099 transitions. Second operand has 3 states, 2 states have (on average 37.0) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:07,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:07,419 INFO L93 Difference]: Finished difference Result 20956 states and 31098 transitions. [2022-10-15 17:21:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 37.0) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-10-15 17:21:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:07,467 INFO L225 Difference]: With dead ends: 20956 [2022-10-15 17:21:07,468 INFO L226 Difference]: Without dead ends: 20954 [2022-10-15 17:21:07,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:07,469 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:07,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 168 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:07,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20954 states. [2022-10-15 17:21:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20954 to 20954. [2022-10-15 17:21:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20954 states, 20953 states have (on average 1.4619863504032835) internal successors, (30633), 20953 states have internal predecessors, (30633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20954 states to 20954 states and 30633 transitions. [2022-10-15 17:21:08,214 INFO L78 Accepts]: Start accepts. Automaton has 20954 states and 30633 transitions. Word has length 74 [2022-10-15 17:21:08,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:08,215 INFO L495 AbstractCegarLoop]: Abstraction has 20954 states and 30633 transitions. [2022-10-15 17:21:08,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.0) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:08,226 INFO L276 IsEmpty]: Start isEmpty. Operand 20954 states and 30633 transitions. [2022-10-15 17:21:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:21:08,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:08,279 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:08,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:21:08,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 17:21:08,498 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1745394696, now seen corresponding path program 1 times [2022-10-15 17:21:08,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:08,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444708702] [2022-10-15 17:21:08,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:08,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:08,868 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:08,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:08,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444708702] [2022-10-15 17:21:08,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444708702] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:08,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973265226] [2022-10-15 17:21:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:08,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:08,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:08,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:21:08,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:21:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:09,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-15 17:21:09,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:09,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:21:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:10,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973265226] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:21:10,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:21:10,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 10 [2022-10-15 17:21:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767081395] [2022-10-15 17:21:10,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:21:10,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 17:21:10,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 17:21:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:21:10,153 INFO L87 Difference]: Start difference. First operand 20954 states and 30633 transitions. Second operand has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:10,671 INFO L93 Difference]: Finished difference Result 64281 states and 93715 transitions. [2022-10-15 17:21:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:21:10,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-10-15 17:21:10,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:10,889 INFO L225 Difference]: With dead ends: 64281 [2022-10-15 17:21:10,889 INFO L226 Difference]: Without dead ends: 64281 [2022-10-15 17:21:10,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:21:10,891 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1227 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:10,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 1468 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64281 states. [2022-10-15 17:21:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64281 to 61690. [2022-10-15 17:21:12,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61690 states, 61689 states have (on average 1.456223962132633) internal successors, (89833), 61689 states have internal predecessors, (89833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61690 states to 61690 states and 89833 transitions. [2022-10-15 17:21:13,044 INFO L78 Accepts]: Start accepts. Automaton has 61690 states and 89833 transitions. Word has length 99 [2022-10-15 17:21:13,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:13,044 INFO L495 AbstractCegarLoop]: Abstraction has 61690 states and 89833 transitions. [2022-10-15 17:21:13,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 61690 states and 89833 transitions. [2022-10-15 17:21:13,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:21:13,064 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:13,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:13,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 17:21:13,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 17:21:13,280 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:13,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:13,281 INFO L85 PathProgramCache]: Analyzing trace with hash -152615028, now seen corresponding path program 1 times [2022-10-15 17:21:13,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:13,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364204307] [2022-10-15 17:21:13,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:13,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:13,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:13,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364204307] [2022-10-15 17:21:13,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364204307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:13,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:13,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:21:13,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337707777] [2022-10-15 17:21:13,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:13,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:21:13,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:13,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:21:13,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:13,979 INFO L87 Difference]: Start difference. First operand 61690 states and 89833 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:14,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:14,953 INFO L93 Difference]: Finished difference Result 124468 states and 181678 transitions. [2022-10-15 17:21:14,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:21:14,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-10-15 17:21:14,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:15,383 INFO L225 Difference]: With dead ends: 124468 [2022-10-15 17:21:15,383 INFO L226 Difference]: Without dead ends: 124468 [2022-10-15 17:21:15,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:21:15,388 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1096 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:15,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1477 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:15,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124468 states. [2022-10-15 17:21:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124468 to 83418. [2022-10-15 17:21:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83418 states, 83417 states have (on average 1.4528573312394355) internal successors, (121193), 83417 states have internal predecessors, (121193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:17,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83418 states to 83418 states and 121193 transitions. [2022-10-15 17:21:17,588 INFO L78 Accepts]: Start accepts. Automaton has 83418 states and 121193 transitions. Word has length 100 [2022-10-15 17:21:17,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:17,589 INFO L495 AbstractCegarLoop]: Abstraction has 83418 states and 121193 transitions. [2022-10-15 17:21:17,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:17,589 INFO L276 IsEmpty]: Start isEmpty. Operand 83418 states and 121193 transitions. [2022-10-15 17:21:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:21:17,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:17,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:17,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:21:17,610 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash 589805596, now seen corresponding path program 1 times [2022-10-15 17:21:17,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:17,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901353428] [2022-10-15 17:21:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:17,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:17,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901353428] [2022-10-15 17:21:17,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901353428] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:17,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:17,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903651685] [2022-10-15 17:21:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:17,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:17,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:17,751 INFO L87 Difference]: Start difference. First operand 83418 states and 121193 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:18,526 INFO L93 Difference]: Finished difference Result 140843 states and 202132 transitions. [2022-10-15 17:21:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:18,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-10-15 17:21:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:18,941 INFO L225 Difference]: With dead ends: 140843 [2022-10-15 17:21:18,942 INFO L226 Difference]: Without dead ends: 140843 [2022-10-15 17:21:18,942 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 [2022-10-15 17:21:18,943 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 87 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:18,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 334 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:19,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140843 states. [2022-10-15 17:21:21,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140843 to 136617. [2022-10-15 17:21:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136617 states, 136616 states have (on average 1.4381551209228787) internal successors, (196475), 136616 states have internal predecessors, (196475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:23,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136617 states to 136617 states and 196475 transitions. [2022-10-15 17:21:23,528 INFO L78 Accepts]: Start accepts. Automaton has 136617 states and 196475 transitions. Word has length 100 [2022-10-15 17:21:23,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:23,528 INFO L495 AbstractCegarLoop]: Abstraction has 136617 states and 196475 transitions. [2022-10-15 17:21:23,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:23,529 INFO L276 IsEmpty]: Start isEmpty. Operand 136617 states and 196475 transitions. [2022-10-15 17:21:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:21:23,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:23,568 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:23,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:21:23,568 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash -912723652, now seen corresponding path program 1 times [2022-10-15 17:21:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:23,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652591014] [2022-10-15 17:21:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:23,704 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:23,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:23,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652591014] [2022-10-15 17:21:23,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652591014] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:23,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:23,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:23,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447662547] [2022-10-15 17:21:23,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:23,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:23,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:23,718 INFO L87 Difference]: Start difference. First operand 136617 states and 196475 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:25,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:25,273 INFO L93 Difference]: Finished difference Result 190968 states and 270790 transitions. [2022-10-15 17:21:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:25,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-10-15 17:21:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:25,724 INFO L225 Difference]: With dead ends: 190968 [2022-10-15 17:21:25,725 INFO L226 Difference]: Without dead ends: 190968 [2022-10-15 17:21:25,725 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 [2022-10-15 17:21:25,726 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 89 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:25,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 360 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:25,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190968 states. [2022-10-15 17:21:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190968 to 176126. [2022-10-15 17:21:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176126 states, 176125 states have (on average 1.4228360539389637) internal successors, (250597), 176125 states have internal predecessors, (250597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:30,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176126 states to 176126 states and 250597 transitions. [2022-10-15 17:21:30,851 INFO L78 Accepts]: Start accepts. Automaton has 176126 states and 250597 transitions. Word has length 100 [2022-10-15 17:21:30,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:30,852 INFO L495 AbstractCegarLoop]: Abstraction has 176126 states and 250597 transitions. [2022-10-15 17:21:30,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:30,853 INFO L276 IsEmpty]: Start isEmpty. Operand 176126 states and 250597 transitions. [2022-10-15 17:21:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:21:30,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:30,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:30,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:21:30,897 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:30,898 INFO L85 PathProgramCache]: Analyzing trace with hash -485377588, now seen corresponding path program 1 times [2022-10-15 17:21:30,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:30,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249641155] [2022-10-15 17:21:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:30,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:31,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:31,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249641155] [2022-10-15 17:21:31,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249641155] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:31,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:31,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:31,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224542374] [2022-10-15 17:21:31,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:31,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:31,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:31,037 INFO L87 Difference]: Start difference. First operand 176126 states and 250597 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:32,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:32,838 INFO L93 Difference]: Finished difference Result 203219 states and 284216 transitions. [2022-10-15 17:21:32,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:32,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-10-15 17:21:32,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:33,305 INFO L225 Difference]: With dead ends: 203219 [2022-10-15 17:21:33,305 INFO L226 Difference]: Without dead ends: 183639 [2022-10-15 17:21:33,306 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 [2022-10-15 17:21:33,307 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 90 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:33,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 373 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:33,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183639 states. [2022-10-15 17:21:38,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183639 to 174780. [2022-10-15 17:21:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174780 states, 174779 states have (on average 1.3991497834408024) internal successors, (244542), 174779 states have internal predecessors, (244542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174780 states to 174780 states and 244542 transitions. [2022-10-15 17:21:39,260 INFO L78 Accepts]: Start accepts. Automaton has 174780 states and 244542 transitions. Word has length 100 [2022-10-15 17:21:39,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:39,260 INFO L495 AbstractCegarLoop]: Abstraction has 174780 states and 244542 transitions. [2022-10-15 17:21:39,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 174780 states and 244542 transitions. [2022-10-15 17:21:39,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:21:39,285 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:39,286 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:39,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:21:39,286 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:39,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:39,287 INFO L85 PathProgramCache]: Analyzing trace with hash 567734444, now seen corresponding path program 1 times [2022-10-15 17:21:39,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:39,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216862528] [2022-10-15 17:21:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:39,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:39,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:39,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216862528] [2022-10-15 17:21:39,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216862528] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:39,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:39,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:39,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990445001] [2022-10-15 17:21:39,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:39,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:39,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:39,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:39,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:39,410 INFO L87 Difference]: Start difference. First operand 174780 states and 244542 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:42,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:42,075 INFO L93 Difference]: Finished difference Result 285714 states and 394146 transitions. [2022-10-15 17:21:42,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:42,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-10-15 17:21:42,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted.