/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.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:21:24,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:21:24,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:21:24,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:21:24,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:21:24,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:21:24,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:21:24,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:21:24,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:21:24,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:21:25,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:21:25,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:21:25,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:21:25,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:21:25,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:21:25,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:21:25,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:21:25,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:21:25,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:21:25,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:21:25,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:21:25,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:21:25,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:21:25,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:21:25,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:21:25,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:21:25,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:21:25,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:21:25,100 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 17:21:25,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:21:25,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:21:25,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:21:25,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:21:25,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:21:25,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:21:25,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:21:25,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:21:25,168 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:21:25,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:21:25,169 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:21:25,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:21:25,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:21:25,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:21:25,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:21:25,170 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:21:25,171 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:21:25,171 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:21:25,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:21:25,171 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:21:25,171 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:21:25,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:21:25,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:21:25,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:21:25,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:21:25,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:21:25,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:21:25,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:21:25,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:21:25,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:21:25,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:21:25,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:21:25,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:21:25,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:21:25,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:21:25,674 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:21:25,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2022-10-15 17:21:25,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2001c0d/cbfb6b43decf44b1992d691bd6d6b66e/FLAGc410a73bd [2022-10-15 17:21:26,441 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:21:26,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2022-10-15 17:21:26,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2001c0d/cbfb6b43decf44b1992d691bd6d6b66e/FLAGc410a73bd [2022-10-15 17:21:26,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c2001c0d/cbfb6b43decf44b1992d691bd6d6b66e [2022-10-15 17:21:26,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:21:26,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:21:26,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:21:26,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:21:26,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:21:26,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:21:26" (1/1) ... [2022-10-15 17:21:26,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473be432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:26, skipping insertion in model container [2022-10-15 17:21:26,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:21:26" (1/1) ... [2022-10-15 17:21:26,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:21:26,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:21:27,073 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.3.1.ufo.BOUNDED-6.pals.c[5984,5997] [2022-10-15 17:21:27,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:21:27,107 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:21:27,207 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.3.1.ufo.BOUNDED-6.pals.c[5984,5997] [2022-10-15 17:21:27,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:21:27,245 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:21:27,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27 WrapperNode [2022-10-15 17:21:27,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:21:27,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:21:27,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:21:27,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:21:27,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,461 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2022-10-15 17:21:27,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:21:27,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:21:27,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:21:27,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:21:27,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:21:27,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:21:27,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:21:27,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:21:27,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (1/1) ... [2022-10-15 17:21:27,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:21:27,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:27,607 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 17:21:27,631 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 17:21:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:21:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:21:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:21:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:21:27,836 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:21:27,840 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:21:28,258 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:21:28,267 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:21:28,267 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:21:28,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:21:28 BoogieIcfgContainer [2022-10-15 17:21:28,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:21:28,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:21:28,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:21:28,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:21:28,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:21:26" (1/3) ... [2022-10-15 17:21:28,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145f8f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:21:28, skipping insertion in model container [2022-10-15 17:21:28,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:21:27" (2/3) ... [2022-10-15 17:21:28,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145f8f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:21:28, skipping insertion in model container [2022-10-15 17:21:28,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:21:28" (3/3) ... [2022-10-15 17:21:28,286 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2022-10-15 17:21:28,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:21:28,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:21:28,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:21:28,448 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;@1875d488, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:21:28,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:21:28,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 60 states have (on average 1.7) internal successors, (102), 62 states have internal predecessors, (102), 0 states have call successors, (0), 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 17:21:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:21:28,482 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:28,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:28,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:28,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:28,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1091462929, now seen corresponding path program 1 times [2022-10-15 17:21:28,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:28,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337134766] [2022-10-15 17:21:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:28,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:28,755 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 17:21:28,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:28,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337134766] [2022-10-15 17:21:28,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337134766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:28,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:28,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:21:28,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706953021] [2022-10-15 17:21:28,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:28,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:21:28,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:28,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:21:28,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:21:28,817 INFO L87 Difference]: Start difference. First operand has 63 states, 60 states have (on average 1.7) internal successors, (102), 62 states have internal predecessors, (102), 0 states have call successors, (0), 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 17:21:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:28,848 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2022-10-15 17:21:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:21:28,851 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 17:21:28,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:28,861 INFO L225 Difference]: With dead ends: 63 [2022-10-15 17:21:28,861 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 17:21:28,865 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 17:21:28,873 INFO L413 NwaCegarLoop]: 99 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, 99 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 17:21:28,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:28,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 17:21:28,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-15 17:21:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 60 states have internal predecessors, (97), 0 states have call successors, (0), 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 17:21:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 97 transitions. [2022-10-15 17:21:28,938 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 97 transitions. Word has length 10 [2022-10-15 17:21:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:28,939 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 97 transitions. [2022-10-15 17:21:28,939 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 17:21:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 97 transitions. [2022-10-15 17:21:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:21:28,940 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:28,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:28,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:21:28,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:28,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:28,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1093309971, now seen corresponding path program 1 times [2022-10-15 17:21:28,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:28,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912734736] [2022-10-15 17:21:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:28,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:29,203 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 17:21:29,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:29,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912734736] [2022-10-15 17:21:29,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912734736] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:29,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:29,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:29,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16561975] [2022-10-15 17:21:29,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:29,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:29,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:29,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:29,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:29,209 INFO L87 Difference]: Start difference. First operand 61 states and 97 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 17:21:29,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:29,312 INFO L93 Difference]: Finished difference Result 100 states and 155 transitions. [2022-10-15 17:21:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:21:29,314 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 17:21:29,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:29,316 INFO L225 Difference]: With dead ends: 100 [2022-10-15 17:21:29,316 INFO L226 Difference]: Without dead ends: 97 [2022-10-15 17:21:29,317 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 17:21:29,319 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 58 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:29,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 350 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:29,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-15 17:21:29,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2022-10-15 17:21:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 61 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-10-15 17:21:29,331 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 10 [2022-10-15 17:21:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:29,332 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-10-15 17:21:29,332 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 17:21:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-10-15 17:21:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 17:21:29,335 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:29,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:29,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:21:29,336 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:29,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash -278543826, now seen corresponding path program 1 times [2022-10-15 17:21:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:29,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460614123] [2022-10-15 17:21:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:29,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:29,576 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 17:21:29,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:29,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460614123] [2022-10-15 17:21:29,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460614123] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:29,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:29,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:29,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441604451] [2022-10-15 17:21:29,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:29,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:29,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:29,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:29,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:29,584 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:29,618 INFO L93 Difference]: Finished difference Result 95 states and 130 transitions. [2022-10-15 17:21:29,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:29,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-10-15 17:21:29,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:29,621 INFO L225 Difference]: With dead ends: 95 [2022-10-15 17:21:29,621 INFO L226 Difference]: Without dead ends: 95 [2022-10-15 17:21:29,622 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 17:21:29,624 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 49 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 183 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 17:21:29,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 183 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:29,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-15 17:21:29,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2022-10-15 17:21:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 88 states have (on average 1.4431818181818181) internal successors, (127), 89 states have internal predecessors, (127), 0 states have call successors, (0), 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 17:21:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2022-10-15 17:21:29,637 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 40 [2022-10-15 17:21:29,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:29,638 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2022-10-15 17:21:29,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2022-10-15 17:21:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 17:21:29,640 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:29,641 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] [2022-10-15 17:21:29,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:21:29,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:29,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:29,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1401070434, now seen corresponding path program 1 times [2022-10-15 17:21:29,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:29,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213863770] [2022-10-15 17:21:29,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:29,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:29,802 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 17:21:29,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:29,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213863770] [2022-10-15 17:21:29,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213863770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:29,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:29,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:29,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268698380] [2022-10-15 17:21:29,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:29,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:29,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:29,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:29,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:29,806 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:29,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:29,834 INFO L93 Difference]: Finished difference Result 145 states and 209 transitions. [2022-10-15 17:21:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:29,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-10-15 17:21:29,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:29,838 INFO L225 Difference]: With dead ends: 145 [2022-10-15 17:21:29,838 INFO L226 Difference]: Without dead ends: 145 [2022-10-15 17:21:29,838 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 17:21:29,840 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 45 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 182 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 17:21:29,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 182 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:29,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-10-15 17:21:29,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 140. [2022-10-15 17:21:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 138 states have (on average 1.4927536231884058) internal successors, (206), 139 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 17:21:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 206 transitions. [2022-10-15 17:21:29,860 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 206 transitions. Word has length 40 [2022-10-15 17:21:29,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:29,860 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 206 transitions. [2022-10-15 17:21:29,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:29,861 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 206 transitions. [2022-10-15 17:21:29,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 17:21:29,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:29,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:21:29,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:21:29,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:29,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1738863576, now seen corresponding path program 1 times [2022-10-15 17:21:29,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:29,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931424984] [2022-10-15 17:21:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:29,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:30,037 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 17:21:30,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:30,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931424984] [2022-10-15 17:21:30,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931424984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:30,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:30,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:30,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795156634] [2022-10-15 17:21:30,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:30,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:30,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:30,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:30,049 INFO L87 Difference]: Start difference. First operand 140 states and 206 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:30,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:30,093 INFO L93 Difference]: Finished difference Result 233 states and 345 transitions. [2022-10-15 17:21:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:30,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-10-15 17:21:30,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:30,097 INFO L225 Difference]: With dead ends: 233 [2022-10-15 17:21:30,097 INFO L226 Difference]: Without dead ends: 233 [2022-10-15 17:21:30,098 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 17:21:30,100 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 41 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 181 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 17:21:30,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 181 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-10-15 17:21:30,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2022-10-15 17:21:30,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 226 states have (on average 1.5132743362831858) internal successors, (342), 227 states have internal predecessors, (342), 0 states have call successors, (0), 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 17:21:30,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 342 transitions. [2022-10-15 17:21:30,126 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 342 transitions. Word has length 40 [2022-10-15 17:21:30,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:30,127 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 342 transitions. [2022-10-15 17:21:30,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:30,128 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 342 transitions. [2022-10-15 17:21:30,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 17:21:30,129 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:30,129 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] [2022-10-15 17:21:30,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:21:30,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:30,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:30,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1338118322, now seen corresponding path program 1 times [2022-10-15 17:21:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:30,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169390208] [2022-10-15 17:21:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:30,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:30,307 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 17:21:30,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:30,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169390208] [2022-10-15 17:21:30,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169390208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:30,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:30,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:30,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472161273] [2022-10-15 17:21:30,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:30,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:30,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:30,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:30,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:30,314 INFO L87 Difference]: Start difference. First operand 228 states and 342 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:30,509 INFO L93 Difference]: Finished difference Result 1253 states and 1889 transitions. [2022-10-15 17:21:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:21:30,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-10-15 17:21:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:30,525 INFO L225 Difference]: With dead ends: 1253 [2022-10-15 17:21:30,525 INFO L226 Difference]: Without dead ends: 1253 [2022-10-15 17:21:30,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:21:30,537 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 409 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:30,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 389 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2022-10-15 17:21:30,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 428. [2022-10-15 17:21:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 426 states have (on average 1.5070422535211268) internal successors, (642), 427 states have internal predecessors, (642), 0 states have call successors, (0), 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 17:21:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 642 transitions. [2022-10-15 17:21:30,628 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 642 transitions. Word has length 40 [2022-10-15 17:21:30,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:30,632 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 642 transitions. [2022-10-15 17:21:30,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 17:21:30,633 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 642 transitions. [2022-10-15 17:21:30,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 17:21:30,638 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:30,638 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] [2022-10-15 17:21:30,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:21:30,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:30,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1209274118, now seen corresponding path program 1 times [2022-10-15 17:21:30,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:30,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828809495] [2022-10-15 17:21:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:30,909 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 17:21:30,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:30,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828809495] [2022-10-15 17:21:30,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828809495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:30,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:30,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:30,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337407319] [2022-10-15 17:21:30,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:30,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:30,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:30,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:30,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:30,914 INFO L87 Difference]: Start difference. First operand 428 states and 642 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 17:21:30,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:30,990 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2022-10-15 17:21:30,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:21:30,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-10-15 17:21:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:30,996 INFO L225 Difference]: With dead ends: 433 [2022-10-15 17:21:30,996 INFO L226 Difference]: Without dead ends: 433 [2022-10-15 17:21:30,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:21:31,007 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 130 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:31,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-10-15 17:21:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 428. [2022-10-15 17:21:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 426 states have (on average 1.488262910798122) internal successors, (634), 427 states have internal predecessors, (634), 0 states have call successors, (0), 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 17:21:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 634 transitions. [2022-10-15 17:21:31,035 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 634 transitions. Word has length 42 [2022-10-15 17:21:31,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:31,037 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 634 transitions. [2022-10-15 17:21:31,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 17:21:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 634 transitions. [2022-10-15 17:21:31,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 17:21:31,042 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:31,042 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] [2022-10-15 17:21:31,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:21:31,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:31,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:31,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1142780606, now seen corresponding path program 1 times [2022-10-15 17:21:31,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:31,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972484719] [2022-10-15 17:21:31,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:31,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:31,123 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 17:21:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:31,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972484719] [2022-10-15 17:21:31,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972484719] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:31,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:31,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:31,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92101379] [2022-10-15 17:21:31,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:31,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:31,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:31,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:31,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:31,126 INFO L87 Difference]: Start difference. First operand 428 states and 634 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 17:21:31,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:31,147 INFO L93 Difference]: Finished difference Result 614 states and 898 transitions. [2022-10-15 17:21:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:31,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-10-15 17:21:31,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:31,151 INFO L225 Difference]: With dead ends: 614 [2022-10-15 17:21:31,152 INFO L226 Difference]: Without dead ends: 614 [2022-10-15 17:21:31,152 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 17:21:31,153 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 33 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:31,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 150 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:31,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-10-15 17:21:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 609. [2022-10-15 17:21:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 607 states have (on average 1.4744645799011533) internal successors, (895), 608 states have internal predecessors, (895), 0 states have call successors, (0), 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 17:21:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 895 transitions. [2022-10-15 17:21:31,170 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 895 transitions. Word has length 42 [2022-10-15 17:21:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:31,170 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 895 transitions. [2022-10-15 17:21:31,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 17:21:31,171 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 895 transitions. [2022-10-15 17:21:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-15 17:21:31,172 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:31,172 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] [2022-10-15 17:21:31,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:21:31,172 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:31,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:31,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1581931209, now seen corresponding path program 1 times [2022-10-15 17:21:31,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:31,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902692497] [2022-10-15 17:21:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:31,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:31,296 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 17:21:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:31,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902692497] [2022-10-15 17:21:31,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902692497] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:31,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:31,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:31,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754306417] [2022-10-15 17:21:31,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:31,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:21:31,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:31,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:21:31,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:21:31,300 INFO L87 Difference]: Start difference. First operand 609 states and 895 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 17:21:31,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:31,453 INFO L93 Difference]: Finished difference Result 1110 states and 1626 transitions. [2022-10-15 17:21:31,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:21:31,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-10-15 17:21:31,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:31,461 INFO L225 Difference]: With dead ends: 1110 [2022-10-15 17:21:31,461 INFO L226 Difference]: Without dead ends: 1110 [2022-10-15 17:21:31,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:21:31,463 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 381 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:31,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 150 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:31,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-10-15 17:21:31,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1009. [2022-10-15 17:21:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1007 states have (on average 1.4766633565044687) internal successors, (1487), 1008 states have internal predecessors, (1487), 0 states have call successors, (0), 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 17:21:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1487 transitions. [2022-10-15 17:21:31,495 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1487 transitions. Word has length 43 [2022-10-15 17:21:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:31,495 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1487 transitions. [2022-10-15 17:21:31,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 17:21:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1487 transitions. [2022-10-15 17:21:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-15 17:21:31,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:31,497 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] [2022-10-15 17:21:31,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:21:31,498 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:31,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash 107012533, now seen corresponding path program 1 times [2022-10-15 17:21:31,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:31,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782708191] [2022-10-15 17:21:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:31,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:31,734 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 17:21:31,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:31,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782708191] [2022-10-15 17:21:31,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782708191] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:31,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:31,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:31,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651415094] [2022-10-15 17:21:31,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:31,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:31,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:31,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:31,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:31,739 INFO L87 Difference]: Start difference. First operand 1009 states and 1487 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 17:21:31,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:31,828 INFO L93 Difference]: Finished difference Result 1997 states and 2859 transitions. [2022-10-15 17:21:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:21:31,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-10-15 17:21:31,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:31,841 INFO L225 Difference]: With dead ends: 1997 [2022-10-15 17:21:31,842 INFO L226 Difference]: Without dead ends: 1997 [2022-10-15 17:21:31,842 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 17:21:31,843 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 148 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:31,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 333 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:31,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-10-15 17:21:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1105. [2022-10-15 17:21:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1103 states have (on average 1.4315503173164097) internal successors, (1579), 1104 states have internal predecessors, (1579), 0 states have call successors, (0), 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 17:21:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1579 transitions. [2022-10-15 17:21:31,884 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1579 transitions. Word has length 43 [2022-10-15 17:21:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:31,884 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1579 transitions. [2022-10-15 17:21:31,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 17:21:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1579 transitions. [2022-10-15 17:21:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 17:21:31,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:31,886 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] [2022-10-15 17:21:31,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:21:31,886 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1149522432, now seen corresponding path program 1 times [2022-10-15 17:21:31,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:31,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108789992] [2022-10-15 17:21:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:31,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:31,974 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 17:21:31,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:31,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108789992] [2022-10-15 17:21:31,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108789992] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:31,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003834170] [2022-10-15 17:21:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:31,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:31,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:31,979 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 17:21:32,004 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 17:21:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:32,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:21:32,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:32,196 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 17:21:32,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:21:32,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003834170] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:32,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:21:32,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 17:21:32,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673990059] [2022-10-15 17:21:32,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:32,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:32,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:32,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:32,199 INFO L87 Difference]: Start difference. First operand 1105 states and 1579 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 17:21:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:32,209 INFO L93 Difference]: Finished difference Result 1104 states and 1578 transitions. [2022-10-15 17:21:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:32,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-10-15 17:21:32,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:32,216 INFO L225 Difference]: With dead ends: 1104 [2022-10-15 17:21:32,216 INFO L226 Difference]: Without dead ends: 1102 [2022-10-15 17:21:32,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 17:21:32,217 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 80 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 17:21:32,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 80 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-10-15 17:21:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2022-10-15 17:21:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 1.3960036330608538) internal successors, (1537), 1101 states have internal predecessors, (1537), 0 states have call successors, (0), 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 17:21:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1537 transitions. [2022-10-15 17:21:32,248 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1537 transitions. Word has length 46 [2022-10-15 17:21:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:32,248 INFO L495 AbstractCegarLoop]: Abstraction has 1102 states and 1537 transitions. [2022-10-15 17:21:32,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 17:21:32,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1537 transitions. [2022-10-15 17:21:32,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:21:32,251 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:32,251 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:21:32,305 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 17:21:32,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 17:21:32,466 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:32,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:32,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1027002802, now seen corresponding path program 1 times [2022-10-15 17:21:32,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:32,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355579365] [2022-10-15 17:21:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:32,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:21:32,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:32,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355579365] [2022-10-15 17:21:32,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355579365] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:32,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:32,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:32,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054433805] [2022-10-15 17:21:32,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:32,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:32,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:32,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:32,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:32,599 INFO L87 Difference]: Start difference. First operand 1102 states and 1537 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:32,686 INFO L93 Difference]: Finished difference Result 3620 states and 5032 transitions. [2022-10-15 17:21:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:21:32,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:21:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:32,706 INFO L225 Difference]: With dead ends: 3620 [2022-10-15 17:21:32,706 INFO L226 Difference]: Without dead ends: 3620 [2022-10-15 17:21:32,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:32,708 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 194 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:32,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 299 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2022-10-15 17:21:32,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 2178. [2022-10-15 17:21:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 2177 states have (on average 1.3913642627468994) internal successors, (3029), 2177 states have internal predecessors, (3029), 0 states have call successors, (0), 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 17:21:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3029 transitions. [2022-10-15 17:21:32,796 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3029 transitions. Word has length 63 [2022-10-15 17:21:32,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:32,796 INFO L495 AbstractCegarLoop]: Abstraction has 2178 states and 3029 transitions. [2022-10-15 17:21:32,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:32,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3029 transitions. [2022-10-15 17:21:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:21:32,799 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:32,799 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:21:32,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:21:32,799 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:32,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:32,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1499181678, now seen corresponding path program 1 times [2022-10-15 17:21:32,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:32,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541513794] [2022-10-15 17:21:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:32,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:32,931 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:21:32,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:32,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541513794] [2022-10-15 17:21:32,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541513794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:32,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:32,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:32,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054468605] [2022-10-15 17:21:32,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:32,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:32,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:32,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:32,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:32,934 INFO L87 Difference]: Start difference. First operand 2178 states and 3029 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:33,016 INFO L93 Difference]: Finished difference Result 4696 states and 6524 transitions. [2022-10-15 17:21:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:21:33,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:21:33,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:33,040 INFO L225 Difference]: With dead ends: 4696 [2022-10-15 17:21:33,040 INFO L226 Difference]: Without dead ends: 4696 [2022-10-15 17:21:33,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:33,042 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 189 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:33,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 324 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:33,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4696 states. [2022-10-15 17:21:33,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4696 to 3794. [2022-10-15 17:21:33,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3794 states, 3793 states have (on average 1.3838650145003955) internal successors, (5249), 3793 states have internal predecessors, (5249), 0 states have call successors, (0), 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 17:21:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 5249 transitions. [2022-10-15 17:21:33,168 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 5249 transitions. Word has length 63 [2022-10-15 17:21:33,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:33,169 INFO L495 AbstractCegarLoop]: Abstraction has 3794 states and 5249 transitions. [2022-10-15 17:21:33,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 5249 transitions. [2022-10-15 17:21:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:21:33,171 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:33,171 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:21:33,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:21:33,172 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:33,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1664145778, now seen corresponding path program 1 times [2022-10-15 17:21:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:33,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121412118] [2022-10-15 17:21:33,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:33,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:33,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:33,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121412118] [2022-10-15 17:21:33,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121412118] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:33,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:33,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:21:33,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685367958] [2022-10-15 17:21:33,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:33,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:21:33,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:33,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:21:33,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:33,299 INFO L87 Difference]: Start difference. First operand 3794 states and 5249 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:33,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:33,422 INFO L93 Difference]: Finished difference Result 5592 states and 7780 transitions. [2022-10-15 17:21:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:21:33,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:21:33,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:33,457 INFO L225 Difference]: With dead ends: 5592 [2022-10-15 17:21:33,458 INFO L226 Difference]: Without dead ends: 5592 [2022-10-15 17:21:33,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:33,459 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 186 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:33,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 311 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:33,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2022-10-15 17:21:33,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 4690. [2022-10-15 17:21:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4690 states, 4689 states have (on average 1.3872894007251013) internal successors, (6505), 4689 states have internal predecessors, (6505), 0 states have call successors, (0), 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 17:21:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 6505 transitions. [2022-10-15 17:21:33,609 INFO L78 Accepts]: Start accepts. Automaton has 4690 states and 6505 transitions. Word has length 63 [2022-10-15 17:21:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:33,610 INFO L495 AbstractCegarLoop]: Abstraction has 4690 states and 6505 transitions. [2022-10-15 17:21:33,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4690 states and 6505 transitions. [2022-10-15 17:21:33,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 17:21:33,612 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:33,613 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:21:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:21:33,614 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash -229876224, now seen corresponding path program 1 times [2022-10-15 17:21:33,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:33,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117071092] [2022-10-15 17:21:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:33,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:34,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:34,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117071092] [2022-10-15 17:21:34,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117071092] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:34,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710140198] [2022-10-15 17:21:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:34,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:34,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:34,364 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 17:21:34,391 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 17:21:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:34,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:21:34,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:34,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:21:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:35,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710140198] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:21:35,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:21:35,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 4] total 20 [2022-10-15 17:21:35,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035241680] [2022-10-15 17:21:35,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:21:35,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-15 17:21:35,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:35,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-15 17:21:35,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-10-15 17:21:35,099 INFO L87 Difference]: Start difference. First operand 4690 states and 6505 transitions. Second operand has 20 states, 20 states have (on average 8.8) internal successors, (176), 20 states have internal predecessors, (176), 0 states have call successors, (0), 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 17:21:42,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:42,183 INFO L93 Difference]: Finished difference Result 49286 states and 65659 transitions. [2022-10-15 17:21:42,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-10-15 17:21:42,184 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.8) internal successors, (176), 20 states have internal predecessors, (176), 0 states have call successors, (0), 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 17:21:42,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:42,354 INFO L225 Difference]: With dead ends: 49286 [2022-10-15 17:21:42,354 INFO L226 Difference]: Without dead ends: 49286 [2022-10-15 17:21:42,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10469 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=3885, Invalid=20921, Unknown=0, NotChecked=0, Total=24806 [2022-10-15 17:21:42,367 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 3273 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3273 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:42,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3273 Valid, 1410 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-15 17:21:42,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49286 states. [2022-10-15 17:21:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49286 to 26164. [2022-10-15 17:21:43,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26164 states, 26163 states have (on average 1.355463822956083) internal successors, (35463), 26163 states have internal predecessors, (35463), 0 states have call successors, (0), 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 17:21:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26164 states to 26164 states and 35463 transitions. [2022-10-15 17:21:43,477 INFO L78 Accepts]: Start accepts. Automaton has 26164 states and 35463 transitions. Word has length 64 [2022-10-15 17:21:43,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:43,477 INFO L495 AbstractCegarLoop]: Abstraction has 26164 states and 35463 transitions. [2022-10-15 17:21:43,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.8) internal successors, (176), 20 states have internal predecessors, (176), 0 states have call successors, (0), 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 17:21:43,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26164 states and 35463 transitions. [2022-10-15 17:21:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:21:43,489 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:43,489 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] [2022-10-15 17:21:43,554 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 17:21:43,703 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,SelfDestructingSolverStorable14 [2022-10-15 17:21:43,703 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:43,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:43,705 INFO L85 PathProgramCache]: Analyzing trace with hash -456421882, now seen corresponding path program 1 times [2022-10-15 17:21:43,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:43,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421188767] [2022-10-15 17:21:43,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:43,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:44,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:44,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421188767] [2022-10-15 17:21:44,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421188767] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:44,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17192453] [2022-10-15 17:21:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:44,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:44,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:44,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:21:44,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:21:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:44,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:21:44,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:45,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:21:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:45,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17192453] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:21:45,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:21:45,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 27 [2022-10-15 17:21:45,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428406847] [2022-10-15 17:21:45,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:21:45,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 17:21:45,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:45,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 17:21:45,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2022-10-15 17:21:45,731 INFO L87 Difference]: Start difference. First operand 26164 states and 35463 transitions. Second operand has 28 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 0 states have call successors, (0), 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 17:21:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:47,409 INFO L93 Difference]: Finished difference Result 63630 states and 84418 transitions. [2022-10-15 17:21:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-15 17:21:47,410 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 0 states have call successors, (0), 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 17:21:47,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:47,588 INFO L225 Difference]: With dead ends: 63630 [2022-10-15 17:21:47,589 INFO L226 Difference]: Without dead ends: 63630 [2022-10-15 17:21:47,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=701, Invalid=2055, Unknown=0, NotChecked=0, Total=2756 [2022-10-15 17:21:47,591 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1288 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:47,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 922 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 17:21:47,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63630 states. [2022-10-15 17:21:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63630 to 39332. [2022-10-15 17:21:49,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39332 states, 39331 states have (on average 1.341486359360301) internal successors, (52762), 39331 states have internal predecessors, (52762), 0 states have call successors, (0), 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 17:21:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39332 states to 39332 states and 52762 transitions. [2022-10-15 17:21:49,298 INFO L78 Accepts]: Start accepts. Automaton has 39332 states and 52762 transitions. Word has length 65 [2022-10-15 17:21:49,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:49,299 INFO L495 AbstractCegarLoop]: Abstraction has 39332 states and 52762 transitions. [2022-10-15 17:21:49,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 0 states have call successors, (0), 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 17:21:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 39332 states and 52762 transitions. [2022-10-15 17:21:49,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:21:49,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:49,307 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:21:49,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 17:21:49,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:49,516 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash 297150904, now seen corresponding path program 1 times [2022-10-15 17:21:49,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:49,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852409811] [2022-10-15 17:21:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:49,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:49,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:49,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852409811] [2022-10-15 17:21:49,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852409811] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:49,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081074666] [2022-10-15 17:21:49,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:49,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:49,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:49,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:21:49,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:21:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:50,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:21:50,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:50,726 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:50,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:21:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:51,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081074666] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:21:51,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:21:51,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-10-15 17:21:51,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878329155] [2022-10-15 17:21:51,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:21:51,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-15 17:21:51,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:51,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-15 17:21:51,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-10-15 17:21:51,444 INFO L87 Difference]: Start difference. First operand 39332 states and 52762 transitions. Second operand has 21 states, 21 states have (on average 6.809523809523809) internal successors, (143), 20 states have internal predecessors, (143), 0 states have call successors, (0), 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 17:21:52,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:52,983 INFO L93 Difference]: Finished difference Result 136134 states and 179504 transitions. [2022-10-15 17:21:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-15 17:21:52,984 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.809523809523809) internal successors, (143), 20 states have internal predecessors, (143), 0 states have call successors, (0), 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 17:21:52,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:53,571 INFO L225 Difference]: With dead ends: 136134 [2022-10-15 17:21:53,571 INFO L226 Difference]: Without dead ends: 136134 [2022-10-15 17:21:53,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=496, Invalid=1396, Unknown=0, NotChecked=0, Total=1892 [2022-10-15 17:21:53,574 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 673 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:53,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 644 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:21:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136134 states. [2022-10-15 17:21:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136134 to 84198. [2022-10-15 17:21:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84198 states, 84197 states have (on average 1.3331116310557383) internal successors, (112244), 84197 states have internal predecessors, (112244), 0 states have call successors, (0), 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 17:21:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84198 states to 84198 states and 112244 transitions. [2022-10-15 17:21:56,165 INFO L78 Accepts]: Start accepts. Automaton has 84198 states and 112244 transitions. Word has length 65 [2022-10-15 17:21:56,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:56,165 INFO L495 AbstractCegarLoop]: Abstraction has 84198 states and 112244 transitions. [2022-10-15 17:21:56,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.809523809523809) internal successors, (143), 20 states have internal predecessors, (143), 0 states have call successors, (0), 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 17:21:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 84198 states and 112244 transitions. [2022-10-15 17:21:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:21:56,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:56,170 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] [2022-10-15 17:21:56,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:21:56,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-15 17:21:56,385 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:56,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:56,387 INFO L85 PathProgramCache]: Analyzing trace with hash 625513838, now seen corresponding path program 1 times [2022-10-15 17:21:56,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:56,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337246380] [2022-10-15 17:21:56,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:56,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:56,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:56,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337246380] [2022-10-15 17:21:56,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337246380] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:56,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:56,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:56,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683353248] [2022-10-15 17:21:56,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:56,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:56,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:56,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:56,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:56,498 INFO L87 Difference]: Start difference. First operand 84198 states and 112244 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 17:21:56,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:56,992 INFO L93 Difference]: Finished difference Result 84200 states and 109365 transitions. [2022-10-15 17:21:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:56,993 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 17:21:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:57,168 INFO L225 Difference]: With dead ends: 84200 [2022-10-15 17:21:57,168 INFO L226 Difference]: Without dead ends: 84200 [2022-10-15 17:21:57,169 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 17:21:57,169 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 29 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:57,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 162 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:57,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84200 states. [2022-10-15 17:21:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84200 to 82278. [2022-10-15 17:21:58,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82278 states, 82277 states have (on average 1.3058813520181825) internal successors, (107444), 82277 states have internal predecessors, (107444), 0 states have call successors, (0), 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 17:21:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82278 states to 82278 states and 107444 transitions. [2022-10-15 17:21:59,506 INFO L78 Accepts]: Start accepts. Automaton has 82278 states and 107444 transitions. Word has length 65 [2022-10-15 17:21:59,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:59,506 INFO L495 AbstractCegarLoop]: Abstraction has 82278 states and 107444 transitions. [2022-10-15 17:21:59,509 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 17:21:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 82278 states and 107444 transitions. [2022-10-15 17:21:59,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:21:59,520 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:59,528 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] [2022-10-15 17:21:59,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:21:59,529 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:59,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:59,530 INFO L85 PathProgramCache]: Analyzing trace with hash -621993778, now seen corresponding path program 1 times [2022-10-15 17:21:59,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:59,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450037993] [2022-10-15 17:21:59,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:59,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:59,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:59,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450037993] [2022-10-15 17:21:59,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450037993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:59,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:59,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:59,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245717383] [2022-10-15 17:21:59,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:59,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:59,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:59,692 INFO L87 Difference]: Start difference. First operand 82278 states and 107444 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 17:21:59,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:59,843 INFO L93 Difference]: Finished difference Result 46340 states and 58945 transitions. [2022-10-15 17:21:59,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:59,844 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 17:21:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:59,905 INFO L225 Difference]: With dead ends: 46340 [2022-10-15 17:21:59,905 INFO L226 Difference]: Without dead ends: 46340 [2022-10-15 17:21:59,906 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 17:21:59,907 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:59,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 152 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:59,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46340 states. [2022-10-15 17:22:00,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46340 to 46338. [2022-10-15 17:22:00,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46338 states, 46337 states have (on average 1.272071994302609) internal successors, (58944), 46337 states have internal predecessors, (58944), 0 states have call successors, (0), 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 17:22:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46338 states to 46338 states and 58944 transitions. [2022-10-15 17:22:01,452 INFO L78 Accepts]: Start accepts. Automaton has 46338 states and 58944 transitions. Word has length 65 [2022-10-15 17:22:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:22:01,452 INFO L495 AbstractCegarLoop]: Abstraction has 46338 states and 58944 transitions. [2022-10-15 17:22:01,452 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 17:22:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 46338 states and 58944 transitions. [2022-10-15 17:22:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:22:01,459 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:22:01,459 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] [2022-10-15 17:22:01,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:22:01,463 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:22:01,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:22:01,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1642879954, now seen corresponding path program 1 times [2022-10-15 17:22:01,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:22:01,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831642045] [2022-10-15 17:22:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:22:01,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:22:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:22:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:22:01,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:22:01,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831642045] [2022-10-15 17:22:01,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831642045] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:22:01,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:22:01,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:22:01,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266160293] [2022-10-15 17:22:01,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:22:01,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:22:01,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:22:01,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:22:01,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:22:01,592 INFO L87 Difference]: Start difference. First operand 46338 states and 58944 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 17:22:01,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:22:01,668 INFO L93 Difference]: Finished difference Result 20084 states and 24815 transitions. [2022-10-15 17:22:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:22:01,669 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 17:22:01,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:22:01,697 INFO L225 Difference]: With dead ends: 20084 [2022-10-15 17:22:01,698 INFO L226 Difference]: Without dead ends: 20084 [2022-10-15 17:22:01,698 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 17:22:01,700 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 17 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:22:01,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 143 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:22:01,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20084 states. [2022-10-15 17:22:02,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20084 to 18705. [2022-10-15 17:22:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18705 states, 18704 states have (on average 1.2472733105218134) internal successors, (23329), 18704 states have internal predecessors, (23329), 0 states have call successors, (0), 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 17:22:02,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18705 states to 18705 states and 23329 transitions. [2022-10-15 17:22:02,104 INFO L78 Accepts]: Start accepts. Automaton has 18705 states and 23329 transitions. Word has length 65 [2022-10-15 17:22:02,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:22:02,104 INFO L495 AbstractCegarLoop]: Abstraction has 18705 states and 23329 transitions. [2022-10-15 17:22:02,105 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 17:22:02,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18705 states and 23329 transitions. [2022-10-15 17:22:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:22:02,107 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:22:02,107 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:22:02,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:22:02,108 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:22:02,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:22:02,109 INFO L85 PathProgramCache]: Analyzing trace with hash 224764346, now seen corresponding path program 1 times [2022-10-15 17:22:02,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:22:02,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692119037] [2022-10-15 17:22:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:22:02,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:22:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:22:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:22:02,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:22:02,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692119037] [2022-10-15 17:22:02,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692119037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:22:02,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:22:02,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:22:02,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036306060] [2022-10-15 17:22:02,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:22:02,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:22:02,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:22:02,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:22:02,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:22:02,245 INFO L87 Difference]: Start difference. First operand 18705 states and 23329 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:22:02,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:22:02,348 INFO L93 Difference]: Finished difference Result 12550 states and 15529 transitions. [2022-10-15 17:22:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:22:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:22:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:22:02,365 INFO L225 Difference]: With dead ends: 12550 [2022-10-15 17:22:02,366 INFO L226 Difference]: Without dead ends: 12550 [2022-10-15 17:22:02,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:22:02,367 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 182 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:22:02,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 87 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:22:02,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12550 states. [2022-10-15 17:22:02,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12550 to 12550. [2022-10-15 17:22:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12550 states, 12549 states have (on average 1.2374691210455016) internal successors, (15529), 12549 states have internal predecessors, (15529), 0 states have call successors, (0), 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 17:22:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12550 states to 12550 states and 15529 transitions. [2022-10-15 17:22:02,750 INFO L78 Accepts]: Start accepts. Automaton has 12550 states and 15529 transitions. Word has length 65 [2022-10-15 17:22:02,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:22:02,751 INFO L495 AbstractCegarLoop]: Abstraction has 12550 states and 15529 transitions. [2022-10-15 17:22:02,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:22:02,751 INFO L276 IsEmpty]: Start isEmpty. Operand 12550 states and 15529 transitions. [2022-10-15 17:22:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:22:02,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:22:02,753 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:22:02,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:22:02,754 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:22:02,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:22:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash 67059962, now seen corresponding path program 1 times [2022-10-15 17:22:02,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:22:02,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2473116] [2022-10-15 17:22:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:22:02,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:22:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:22:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 17:22:02,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:22:02,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2473116] [2022-10-15 17:22:02,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2473116] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:22:02,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:22:02,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:22:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716968683] [2022-10-15 17:22:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:22:02,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:22:02,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:22:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:22:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:22:02,867 INFO L87 Difference]: Start difference. First operand 12550 states and 15529 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:22:02,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:22:02,963 INFO L93 Difference]: Finished difference Result 9663 states and 11719 transitions. [2022-10-15 17:22:02,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:22:02,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:22:02,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:22:02,977 INFO L225 Difference]: With dead ends: 9663 [2022-10-15 17:22:02,977 INFO L226 Difference]: Without dead ends: 9663 [2022-10-15 17:22:02,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:22:02,983 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 188 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:22:02,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 81 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:22:02,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9663 states. [2022-10-15 17:22:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9663 to 9663. [2022-10-15 17:22:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9663 states, 9662 states have (on average 1.212895880770027) internal successors, (11719), 9662 states have internal predecessors, (11719), 0 states have call successors, (0), 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 17:22:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9663 states to 9663 states and 11719 transitions. [2022-10-15 17:22:03,129 INFO L78 Accepts]: Start accepts. Automaton has 9663 states and 11719 transitions. Word has length 65 [2022-10-15 17:22:03,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:22:03,130 INFO L495 AbstractCegarLoop]: Abstraction has 9663 states and 11719 transitions. [2022-10-15 17:22:03,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:22:03,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9663 states and 11719 transitions. [2022-10-15 17:22:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 17:22:03,132 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:22:03,132 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:22:03,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 17:22:03,133 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:22:03,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:22:03,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1467200301, now seen corresponding path program 1 times [2022-10-15 17:22:03,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:22:03,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492029824] [2022-10-15 17:22:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:22:03,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:22:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:22:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:22:03,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:22:03,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492029824] [2022-10-15 17:22:03,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492029824] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:22:03,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156444127] [2022-10-15 17:22:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:22:03,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:22:03,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:22:03,930 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:22:03,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 17:22:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:22:04,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-15 17:22:04,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:22:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:22:05,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:22:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:22:06,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156444127] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:22:06,523 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:22:06,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2022-10-15 17:22:06,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729057895] [2022-10-15 17:22:06,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:22:06,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-15 17:22:06,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:22:06,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-15 17:22:06,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1077, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 17:22:06,525 INFO L87 Difference]: Start difference. First operand 9663 states and 11719 transitions. Second operand has 35 states, 35 states have (on average 4.914285714285715) internal successors, (172), 35 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)