/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-reduced/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 04:07:58,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 04:07:58,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 04:07:58,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 04:07:58,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 04:07:58,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 04:07:58,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 04:07:58,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 04:07:58,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 04:07:58,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 04:07:58,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 04:07:58,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 04:07:58,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 04:07:58,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 04:07:58,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 04:07:58,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 04:07:58,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 04:07:58,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 04:07:58,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 04:07:58,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 04:07:58,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 04:07:58,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 04:07:58,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 04:07:58,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 04:07:58,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 04:07:58,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 04:07:58,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 04:07:58,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 04:07:58,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 04:07:58,604 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 04:07:58,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 04:07:58,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 04:07:58,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 04:07:58,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 04:07:58,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 04:07:58,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 04:07:58,605 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 04:07:58,606 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 04:07:58,606 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 04:07:58,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 04:07:58,606 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 04:07:58,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 04:07:58,607 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 04:07:58,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 04:07:58,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 04:07:58,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 04:07:58,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:07:58,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 04:07:58,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 04:07:58,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 04:07:58,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 04:07:58,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 04:07:59,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 04:07:59,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 04:07:59,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 04:07:59,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 04:07:59,058 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 04:07:59,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 04:07:59,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d0327f2/0b59c3bacddd4ca7b5f5abb472c1a40f/FLAG6a70e3873 [2022-10-16 04:07:59,904 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 04:07:59,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 04:07:59,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d0327f2/0b59c3bacddd4ca7b5f5abb472c1a40f/FLAG6a70e3873 [2022-10-16 04:08:00,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d0327f2/0b59c3bacddd4ca7b5f5abb472c1a40f [2022-10-16 04:08:00,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 04:08:00,183 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 04:08:00,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 04:08:00,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 04:08:00,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 04:08:00,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:00,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb07f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00, skipping insertion in model container [2022-10-16 04:08:00,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:00,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 04:08:00,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 04:08:00,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[13674,13687] [2022-10-16 04:08:00,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:08:00,733 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 04:08:00,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[13674,13687] [2022-10-16 04:08:00,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:08:00,996 INFO L208 MainTranslator]: Completed translation [2022-10-16 04:08:00,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00 WrapperNode [2022-10-16 04:08:00,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 04:08:00,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 04:08:00,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 04:08:00,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 04:08:01,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,171 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1364 [2022-10-16 04:08:01,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 04:08:01,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 04:08:01,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 04:08:01,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 04:08:01,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 04:08:01,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 04:08:01,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 04:08:01,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 04:08:01,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (1/1) ... [2022-10-16 04:08:01,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:08:01,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:08:01,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 04:08:01,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 04:08:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 04:08:01,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 04:08:01,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 04:08:01,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 04:08:01,601 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 04:08:01,617 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 04:08:02,962 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 04:08:02,988 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 04:08:02,990 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 04:08:02,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:08:02 BoogieIcfgContainer [2022-10-16 04:08:02,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 04:08:02,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 04:08:02,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 04:08:03,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 04:08:03,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:08:00" (1/3) ... [2022-10-16 04:08:03,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52475b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:08:03, skipping insertion in model container [2022-10-16 04:08:03,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:08:00" (2/3) ... [2022-10-16 04:08:03,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52475b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:08:03, skipping insertion in model container [2022-10-16 04:08:03,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:08:02" (3/3) ... [2022-10-16 04:08:03,008 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 04:08:03,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 04:08:03,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 04:08:03,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 04:08:03,149 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;@316130b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 04:08:03,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 04:08:03,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 343 states, 340 states have (on average 1.8) internal successors, (612), 342 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:03,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 04:08:03,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:03,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:03,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:03,216 INFO L85 PathProgramCache]: Analyzing trace with hash -486265099, now seen corresponding path program 1 times [2022-10-16 04:08:03,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:03,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27792438] [2022-10-16 04:08:03,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:03,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:03,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:03,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27792438] [2022-10-16 04:08:03,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27792438] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:03,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:03,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 04:08:03,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401557895] [2022-10-16 04:08:03,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:03,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:03,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:03,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:03,906 INFO L87 Difference]: Start difference. First operand has 343 states, 340 states have (on average 1.8) internal successors, (612), 342 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:04,015 INFO L93 Difference]: Finished difference Result 342 states and 610 transitions. [2022-10-16 04:08:04,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:04,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-16 04:08:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:04,044 INFO L225 Difference]: With dead ends: 342 [2022-10-16 04:08:04,045 INFO L226 Difference]: Without dead ends: 339 [2022-10-16 04:08:04,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:04,054 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 559 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:04,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 609 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-10-16 04:08:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2022-10-16 04:08:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.6568047337278107) internal successors, (560), 338 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:04,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 560 transitions. [2022-10-16 04:08:04,126 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 560 transitions. Word has length 52 [2022-10-16 04:08:04,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:04,127 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 560 transitions. [2022-10-16 04:08:04,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:04,127 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 560 transitions. [2022-10-16 04:08:04,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 04:08:04,134 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:04,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:04,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 04:08:04,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1594884720, now seen corresponding path program 1 times [2022-10-16 04:08:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:04,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093952190] [2022-10-16 04:08:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:04,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:04,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:04,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093952190] [2022-10-16 04:08:04,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093952190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:04,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:04,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:04,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93447462] [2022-10-16 04:08:04,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:04,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:04,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:04,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:04,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:04,641 INFO L87 Difference]: Start difference. First operand 339 states and 560 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:04,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:04,702 INFO L93 Difference]: Finished difference Result 473 states and 780 transitions. [2022-10-16 04:08:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:04,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-10-16 04:08:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:04,707 INFO L225 Difference]: With dead ends: 473 [2022-10-16 04:08:04,708 INFO L226 Difference]: Without dead ends: 473 [2022-10-16 04:08:04,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:04,710 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 217 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:04,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 1067 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-10-16 04:08:04,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2022-10-16 04:08:04,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.6574468085106382) internal successors, (779), 470 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 779 transitions. [2022-10-16 04:08:04,801 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 779 transitions. Word has length 118 [2022-10-16 04:08:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:04,802 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 779 transitions. [2022-10-16 04:08:04,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 779 transitions. [2022-10-16 04:08:04,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 04:08:04,818 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:04,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:04,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 04:08:04,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:04,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash -910979864, now seen corresponding path program 1 times [2022-10-16 04:08:04,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:04,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565675077] [2022-10-16 04:08:04,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:05,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:05,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:05,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565675077] [2022-10-16 04:08:05,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565675077] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:05,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:05,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:05,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627287786] [2022-10-16 04:08:05,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:05,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:05,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:05,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:05,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:05,081 INFO L87 Difference]: Start difference. First operand 471 states and 779 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:05,117 INFO L93 Difference]: Finished difference Result 729 states and 1207 transitions. [2022-10-16 04:08:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:05,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-10-16 04:08:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:05,123 INFO L225 Difference]: With dead ends: 729 [2022-10-16 04:08:05,123 INFO L226 Difference]: Without dead ends: 729 [2022-10-16 04:08:05,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:05,126 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 218 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:05,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1075 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:05,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-10-16 04:08:05,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 727. [2022-10-16 04:08:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 726 states have (on average 1.6611570247933884) internal successors, (1206), 726 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1206 transitions. [2022-10-16 04:08:05,156 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1206 transitions. Word has length 121 [2022-10-16 04:08:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:05,157 INFO L495 AbstractCegarLoop]: Abstraction has 727 states and 1206 transitions. [2022-10-16 04:08:05,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1206 transitions. [2022-10-16 04:08:05,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 04:08:05,160 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:05,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:05,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 04:08:05,161 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:05,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:05,161 INFO L85 PathProgramCache]: Analyzing trace with hash -195863697, now seen corresponding path program 1 times [2022-10-16 04:08:05,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:05,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136079016] [2022-10-16 04:08:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:05,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:05,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136079016] [2022-10-16 04:08:05,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136079016] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:05,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:05,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:05,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221470338] [2022-10-16 04:08:05,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:05,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:05,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:05,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:05,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:05,399 INFO L87 Difference]: Start difference. First operand 727 states and 1206 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:05,444 INFO L93 Difference]: Finished difference Result 1221 states and 2023 transitions. [2022-10-16 04:08:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:05,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-10-16 04:08:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:05,454 INFO L225 Difference]: With dead ends: 1221 [2022-10-16 04:08:05,454 INFO L226 Difference]: Without dead ends: 1221 [2022-10-16 04:08:05,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:05,468 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 211 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:05,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 1076 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-10-16 04:08:05,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1219. [2022-10-16 04:08:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1218 states have (on average 1.6600985221674878) internal successors, (2022), 1218 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 2022 transitions. [2022-10-16 04:08:05,549 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 2022 transitions. Word has length 124 [2022-10-16 04:08:05,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:05,550 INFO L495 AbstractCegarLoop]: Abstraction has 1219 states and 2022 transitions. [2022-10-16 04:08:05,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:05,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 2022 transitions. [2022-10-16 04:08:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 04:08:05,553 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:05,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:05,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 04:08:05,554 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:05,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1851247163, now seen corresponding path program 1 times [2022-10-16 04:08:05,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:05,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11472883] [2022-10-16 04:08:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:05,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:05,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:05,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11472883] [2022-10-16 04:08:05,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11472883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:05,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:05,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298595840] [2022-10-16 04:08:05,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:05,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:05,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:05,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:05,752 INFO L87 Difference]: Start difference. First operand 1219 states and 2022 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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) [2022-10-16 04:08:05,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:05,790 INFO L93 Difference]: Finished difference Result 2165 states and 3579 transitions. [2022-10-16 04:08:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:05,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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) Word has length 127 [2022-10-16 04:08:05,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:05,804 INFO L225 Difference]: With dead ends: 2165 [2022-10-16 04:08:05,804 INFO L226 Difference]: Without dead ends: 2165 [2022-10-16 04:08:05,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:05,806 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 204 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:05,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 1077 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2022-10-16 04:08:05,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2163. [2022-10-16 04:08:05,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 2162 states have (on average 1.6549491211840888) internal successors, (3578), 2162 states have internal predecessors, (3578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 3578 transitions. [2022-10-16 04:08:05,872 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 3578 transitions. Word has length 127 [2022-10-16 04:08:05,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:05,873 INFO L495 AbstractCegarLoop]: Abstraction has 2163 states and 3578 transitions. [2022-10-16 04:08:05,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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) [2022-10-16 04:08:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 3578 transitions. [2022-10-16 04:08:05,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 04:08:05,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:05,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:05,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 04:08:05,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:05,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:05,878 INFO L85 PathProgramCache]: Analyzing trace with hash -559497898, now seen corresponding path program 1 times [2022-10-16 04:08:05,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:05,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347387021] [2022-10-16 04:08:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:05,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:06,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:06,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347387021] [2022-10-16 04:08:06,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347387021] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:06,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:06,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:08:06,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659065102] [2022-10-16 04:08:06,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:06,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:08:06,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:08:06,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:08:06,232 INFO L87 Difference]: Start difference. First operand 2163 states and 3578 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:06,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:06,615 INFO L93 Difference]: Finished difference Result 9313 states and 15481 transitions. [2022-10-16 04:08:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 04:08:06,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-16 04:08:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:06,669 INFO L225 Difference]: With dead ends: 9313 [2022-10-16 04:08:06,670 INFO L226 Difference]: Without dead ends: 9313 [2022-10-16 04:08:06,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:08:06,671 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 2036 mSDsluCounter, 4635 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 5187 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:06,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 5187 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 04:08:06,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9313 states. [2022-10-16 04:08:06,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9313 to 4001. [2022-10-16 04:08:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 4000 states have (on average 1.65525) internal successors, (6621), 4000 states have internal predecessors, (6621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6621 transitions. [2022-10-16 04:08:06,908 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6621 transitions. Word has length 130 [2022-10-16 04:08:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:06,909 INFO L495 AbstractCegarLoop]: Abstraction has 4001 states and 6621 transitions. [2022-10-16 04:08:06,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6621 transitions. [2022-10-16 04:08:06,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 04:08:06,914 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:06,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:06,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 04:08:06,915 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:06,916 INFO L85 PathProgramCache]: Analyzing trace with hash -231627666, now seen corresponding path program 1 times [2022-10-16 04:08:06,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:06,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381687423] [2022-10-16 04:08:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:06,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:07,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:07,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381687423] [2022-10-16 04:08:07,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381687423] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:07,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:07,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 04:08:07,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732599302] [2022-10-16 04:08:07,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:07,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 04:08:07,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:07,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 04:08:07,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 04:08:07,159 INFO L87 Difference]: Start difference. First operand 4001 states and 6621 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:07,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:07,323 INFO L93 Difference]: Finished difference Result 7905 states and 13143 transitions. [2022-10-16 04:08:07,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 04:08:07,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2022-10-16 04:08:07,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:07,372 INFO L225 Difference]: With dead ends: 7905 [2022-10-16 04:08:07,373 INFO L226 Difference]: Without dead ends: 7905 [2022-10-16 04:08:07,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:08:07,375 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 718 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:07,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1851 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:08:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7905 states. [2022-10-16 04:08:07,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7905 to 5936. [2022-10-16 04:08:07,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 5935 states have (on average 1.6572872788542545) internal successors, (9836), 5935 states have internal predecessors, (9836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 9836 transitions. [2022-10-16 04:08:07,623 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 9836 transitions. Word has length 131 [2022-10-16 04:08:07,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:07,624 INFO L495 AbstractCegarLoop]: Abstraction has 5936 states and 9836 transitions. [2022-10-16 04:08:07,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 9836 transitions. [2022-10-16 04:08:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 04:08:07,630 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:07,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:07,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 04:08:07,630 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:07,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:07,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1540206583, now seen corresponding path program 1 times [2022-10-16 04:08:07,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:07,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276192222] [2022-10-16 04:08:07,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:07,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:07,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:07,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276192222] [2022-10-16 04:08:07,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276192222] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:07,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:07,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:07,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071213061] [2022-10-16 04:08:07,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:07,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:07,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:07,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:07,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:07,839 INFO L87 Difference]: Start difference. First operand 5936 states and 9836 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:07,920 INFO L93 Difference]: Finished difference Result 9024 states and 14951 transitions. [2022-10-16 04:08:07,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:07,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-10-16 04:08:07,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:07,958 INFO L225 Difference]: With dead ends: 9024 [2022-10-16 04:08:07,958 INFO L226 Difference]: Without dead ends: 9024 [2022-10-16 04:08:07,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:07,960 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 226 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:07,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1256 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9024 states. [2022-10-16 04:08:08,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9024 to 9022. [2022-10-16 04:08:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9022 states, 9021 states have (on average 1.6572442079592062) internal successors, (14950), 9021 states have internal predecessors, (14950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9022 states to 9022 states and 14950 transitions. [2022-10-16 04:08:08,193 INFO L78 Accepts]: Start accepts. Automaton has 9022 states and 14950 transitions. Word has length 132 [2022-10-16 04:08:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:08,194 INFO L495 AbstractCegarLoop]: Abstraction has 9022 states and 14950 transitions. [2022-10-16 04:08:08,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 9022 states and 14950 transitions. [2022-10-16 04:08:08,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 04:08:08,197 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:08,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:08,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 04:08:08,198 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:08,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:08,199 INFO L85 PathProgramCache]: Analyzing trace with hash 579129211, now seen corresponding path program 1 times [2022-10-16 04:08:08,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:08,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67528861] [2022-10-16 04:08:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:08,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:08,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:08,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67528861] [2022-10-16 04:08:08,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67528861] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:08,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:08,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:08,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200510157] [2022-10-16 04:08:08,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:08,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:08,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:08,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:08,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:08,348 INFO L87 Difference]: Start difference. First operand 9022 states and 14950 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:08,450 INFO L93 Difference]: Finished difference Result 12606 states and 20841 transitions. [2022-10-16 04:08:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:08,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-10-16 04:08:08,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:08,487 INFO L225 Difference]: With dead ends: 12606 [2022-10-16 04:08:08,487 INFO L226 Difference]: Without dead ends: 12606 [2022-10-16 04:08:08,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:08,488 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 219 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:08,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1232 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12606 states. [2022-10-16 04:08:08,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12606 to 12604. [2022-10-16 04:08:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12604 states, 12603 states have (on average 1.653574545743077) internal successors, (20840), 12603 states have internal predecessors, (20840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12604 states to 12604 states and 20840 transitions. [2022-10-16 04:08:08,851 INFO L78 Accepts]: Start accepts. Automaton has 12604 states and 20840 transitions. Word has length 132 [2022-10-16 04:08:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:08,852 INFO L495 AbstractCegarLoop]: Abstraction has 12604 states and 20840 transitions. [2022-10-16 04:08:08,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 12604 states and 20840 transitions. [2022-10-16 04:08:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 04:08:08,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:08,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:08,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 04:08:08,857 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:08,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:08,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1676490411, now seen corresponding path program 1 times [2022-10-16 04:08:08,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:08,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739101174] [2022-10-16 04:08:08,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:08,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:09,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:09,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739101174] [2022-10-16 04:08:09,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739101174] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:09,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:09,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:09,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822528498] [2022-10-16 04:08:09,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:09,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:09,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:09,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:09,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:09,037 INFO L87 Difference]: Start difference. First operand 12604 states and 20840 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:09,225 INFO L93 Difference]: Finished difference Result 17468 states and 28809 transitions. [2022-10-16 04:08:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:09,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-10-16 04:08:09,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:09,283 INFO L225 Difference]: With dead ends: 17468 [2022-10-16 04:08:09,283 INFO L226 Difference]: Without dead ends: 17468 [2022-10-16 04:08:09,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:09,284 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 212 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:09,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1199 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:09,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17468 states. [2022-10-16 04:08:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17468 to 17466. [2022-10-16 04:08:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17466 states, 17465 states have (on average 1.6494703693100488) internal successors, (28808), 17465 states have internal predecessors, (28808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17466 states to 17466 states and 28808 transitions. [2022-10-16 04:08:09,820 INFO L78 Accepts]: Start accepts. Automaton has 17466 states and 28808 transitions. Word has length 132 [2022-10-16 04:08:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:09,820 INFO L495 AbstractCegarLoop]: Abstraction has 17466 states and 28808 transitions. [2022-10-16 04:08:09,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 17466 states and 28808 transitions. [2022-10-16 04:08:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 04:08:09,823 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:09,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:09,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 04:08:09,824 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:09,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:09,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1346972957, now seen corresponding path program 1 times [2022-10-16 04:08:09,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:09,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754932568] [2022-10-16 04:08:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:09,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:10,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:10,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754932568] [2022-10-16 04:08:10,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754932568] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:10,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:10,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 04:08:10,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24350434] [2022-10-16 04:08:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:10,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 04:08:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 04:08:10,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 04:08:10,103 INFO L87 Difference]: Start difference. First operand 17466 states and 28808 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:10,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:10,484 INFO L93 Difference]: Finished difference Result 39310 states and 64787 transitions. [2022-10-16 04:08:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 04:08:10,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-10-16 04:08:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:10,605 INFO L225 Difference]: With dead ends: 39310 [2022-10-16 04:08:10,606 INFO L226 Difference]: Without dead ends: 39310 [2022-10-16 04:08:10,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:08:10,607 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 716 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:10,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 1612 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:08:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39310 states. [2022-10-16 04:08:11,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39310 to 28329. [2022-10-16 04:08:11,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28329 states, 28328 states have (on average 1.644909630048009) internal successors, (46597), 28328 states have internal predecessors, (46597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28329 states to 28329 states and 46597 transitions. [2022-10-16 04:08:11,631 INFO L78 Accepts]: Start accepts. Automaton has 28329 states and 46597 transitions. Word has length 132 [2022-10-16 04:08:11,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:11,632 INFO L495 AbstractCegarLoop]: Abstraction has 28329 states and 46597 transitions. [2022-10-16 04:08:11,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 28329 states and 46597 transitions. [2022-10-16 04:08:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 04:08:11,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:11,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:11,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 04:08:11,635 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash -434438713, now seen corresponding path program 1 times [2022-10-16 04:08:11,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:11,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124536020] [2022-10-16 04:08:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:11,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:11,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:11,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124536020] [2022-10-16 04:08:11,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124536020] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:11,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:11,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:08:11,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350903643] [2022-10-16 04:08:11,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:11,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:08:11,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:11,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:08:11,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:11,922 INFO L87 Difference]: Start difference. First operand 28329 states and 46597 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:12,156 INFO L93 Difference]: Finished difference Result 39073 states and 64052 transitions. [2022-10-16 04:08:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:08:12,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-10-16 04:08:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:12,276 INFO L225 Difference]: With dead ends: 39073 [2022-10-16 04:08:12,277 INFO L226 Difference]: Without dead ends: 39073 [2022-10-16 04:08:12,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:08:12,278 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 205 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:12,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1166 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39073 states. [2022-10-16 04:08:13,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39073 to 39071. [2022-10-16 04:08:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39071 states, 39070 states have (on average 1.6393908369593038) internal successors, (64051), 39070 states have internal predecessors, (64051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:13,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39071 states to 39071 states and 64051 transitions. [2022-10-16 04:08:13,568 INFO L78 Accepts]: Start accepts. Automaton has 39071 states and 64051 transitions. Word has length 132 [2022-10-16 04:08:13,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:13,569 INFO L495 AbstractCegarLoop]: Abstraction has 39071 states and 64051 transitions. [2022-10-16 04:08:13,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:13,570 INFO L276 IsEmpty]: Start isEmpty. Operand 39071 states and 64051 transitions. [2022-10-16 04:08:13,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 04:08:13,572 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:13,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:13,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 04:08:13,573 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:13,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:13,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1251457259, now seen corresponding path program 1 times [2022-10-16 04:08:13,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:13,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567337305] [2022-10-16 04:08:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:13,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:14,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:14,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:14,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567337305] [2022-10-16 04:08:14,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567337305] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:14,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:14,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 04:08:14,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160534688] [2022-10-16 04:08:14,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:14,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 04:08:14,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:14,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 04:08:14,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 04:08:14,049 INFO L87 Difference]: Start difference. First operand 39071 states and 64051 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:14,771 INFO L93 Difference]: Finished difference Result 87727 states and 143654 transitions. [2022-10-16 04:08:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 04:08:14,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-10-16 04:08:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:15,069 INFO L225 Difference]: With dead ends: 87727 [2022-10-16 04:08:15,070 INFO L226 Difference]: Without dead ends: 87727 [2022-10-16 04:08:15,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:08:15,072 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 714 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:15,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 1848 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:08:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87727 states. [2022-10-16 04:08:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87727 to 63256. [2022-10-16 04:08:16,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63256 states, 63255 states have (on average 1.6339894079519406) internal successors, (103358), 63255 states have internal predecessors, (103358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:16,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63256 states to 63256 states and 103358 transitions. [2022-10-16 04:08:16,987 INFO L78 Accepts]: Start accepts. Automaton has 63256 states and 103358 transitions. Word has length 133 [2022-10-16 04:08:16,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:16,988 INFO L495 AbstractCegarLoop]: Abstraction has 63256 states and 103358 transitions. [2022-10-16 04:08:16,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 63256 states and 103358 transitions. [2022-10-16 04:08:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-16 04:08:16,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:16,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:16,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 04:08:16,992 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash -193857308, now seen corresponding path program 1 times [2022-10-16 04:08:16,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:16,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026183072] [2022-10-16 04:08:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:16,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:17,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:17,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026183072] [2022-10-16 04:08:17,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026183072] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:17,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:17,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 04:08:17,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044397900] [2022-10-16 04:08:17,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:17,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 04:08:17,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:17,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 04:08:17,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 04:08:17,175 INFO L87 Difference]: Start difference. First operand 63256 states and 103358 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:18,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:18,141 INFO L93 Difference]: Finished difference Result 139572 states and 227807 transitions. [2022-10-16 04:08:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 04:08:18,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-10-16 04:08:18,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:19,003 INFO L225 Difference]: With dead ends: 139572 [2022-10-16 04:08:19,003 INFO L226 Difference]: Without dead ends: 139572 [2022-10-16 04:08:19,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:08:19,005 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 712 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:19,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 1850 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:19,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139572 states. [2022-10-16 04:08:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139572 to 101189. [2022-10-16 04:08:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101189 states, 101188 states have (on average 1.6286615013637982) internal successors, (164801), 101188 states have internal predecessors, (164801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101189 states to 101189 states and 164801 transitions. [2022-10-16 04:08:21,640 INFO L78 Accepts]: Start accepts. Automaton has 101189 states and 164801 transitions. Word has length 134 [2022-10-16 04:08:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:21,654 INFO L495 AbstractCegarLoop]: Abstraction has 101189 states and 164801 transitions. [2022-10-16 04:08:21,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 101189 states and 164801 transitions. [2022-10-16 04:08:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-16 04:08:21,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:21,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:21,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 04:08:21,666 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1164383125, now seen corresponding path program 1 times [2022-10-16 04:08:21,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:21,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268294834] [2022-10-16 04:08:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:21,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:22,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:22,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268294834] [2022-10-16 04:08:22,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268294834] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:22,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:22,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:08:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724078215] [2022-10-16 04:08:22,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:08:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:08:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:08:22,238 INFO L87 Difference]: Start difference. First operand 101189 states and 164801 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:23,223 INFO L93 Difference]: Finished difference Result 101191 states and 164177 transitions. [2022-10-16 04:08:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:08:23,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-10-16 04:08:23,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:23,545 INFO L225 Difference]: With dead ends: 101191 [2022-10-16 04:08:23,546 INFO L226 Difference]: Without dead ends: 101191 [2022-10-16 04:08:23,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:08:23,550 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 765 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:23,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 2122 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:08:23,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101191 states. [2022-10-16 04:08:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101191 to 101189. [2022-10-16 04:08:25,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101189 states, 101188 states have (on average 1.6224848796299955) internal successors, (164176), 101188 states have internal predecessors, (164176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101189 states to 101189 states and 164176 transitions. [2022-10-16 04:08:25,554 INFO L78 Accepts]: Start accepts. Automaton has 101189 states and 164176 transitions. Word has length 136 [2022-10-16 04:08:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 101189 states and 164176 transitions. [2022-10-16 04:08:25,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 101189 states and 164176 transitions. [2022-10-16 04:08:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-16 04:08:25,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:25,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:25,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 04:08:25,557 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:25,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash -66556249, now seen corresponding path program 1 times [2022-10-16 04:08:25,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:25,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366152199] [2022-10-16 04:08:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:25,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:26,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:26,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366152199] [2022-10-16 04:08:26,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366152199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:26,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:26,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:08:26,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879956200] [2022-10-16 04:08:26,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:26,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:08:26,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:26,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:08:26,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:08:26,520 INFO L87 Difference]: Start difference. First operand 101189 states and 164176 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:27,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:27,621 INFO L93 Difference]: Finished difference Result 194837 states and 314534 transitions. [2022-10-16 04:08:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:08:27,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2022-10-16 04:08:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:28,009 INFO L225 Difference]: With dead ends: 194837 [2022-10-16 04:08:28,010 INFO L226 Difference]: Without dead ends: 194837 [2022-10-16 04:08:28,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:08:28,012 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 959 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:28,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 2135 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:08:28,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194837 states. [2022-10-16 04:08:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194837 to 194835. [2022-10-16 04:08:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194835 states, 194834 states have (on average 1.614364022706509) internal successors, (314533), 194834 states have internal predecessors, (314533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194835 states to 194835 states and 314533 transitions. [2022-10-16 04:08:31,720 INFO L78 Accepts]: Start accepts. Automaton has 194835 states and 314533 transitions. Word has length 139 [2022-10-16 04:08:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:31,720 INFO L495 AbstractCegarLoop]: Abstraction has 194835 states and 314533 transitions. [2022-10-16 04:08:31,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 194835 states and 314533 transitions. [2022-10-16 04:08:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-16 04:08:31,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:31,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:31,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 04:08:31,723 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:31,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2065152814, now seen corresponding path program 1 times [2022-10-16 04:08:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:31,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429126572] [2022-10-16 04:08:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:08:32,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:32,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429126572] [2022-10-16 04:08:32,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429126572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:32,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:32,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 04:08:32,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101503641] [2022-10-16 04:08:32,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:32,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:08:32,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:32,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:08:32,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:08:32,355 INFO L87 Difference]: Start difference. First operand 194835 states and 314533 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:34,196 INFO L93 Difference]: Finished difference Result 369697 states and 592856 transitions. [2022-10-16 04:08:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:08:34,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-10-16 04:08:34,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:34,918 INFO L225 Difference]: With dead ends: 369697 [2022-10-16 04:08:34,918 INFO L226 Difference]: Without dead ends: 369697 [2022-10-16 04:08:34,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:08:34,919 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 462 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:34,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 2526 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:08:35,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369697 states. [2022-10-16 04:08:39,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369697 to 198707. [2022-10-16 04:08:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198707 states, 198706 states have (on average 1.6022566002033154) internal successors, (318378), 198706 states have internal predecessors, (318378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198707 states to 198707 states and 318378 transitions. [2022-10-16 04:08:40,693 INFO L78 Accepts]: Start accepts. Automaton has 198707 states and 318378 transitions. Word has length 140 [2022-10-16 04:08:40,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:40,698 INFO L495 AbstractCegarLoop]: Abstraction has 198707 states and 318378 transitions. [2022-10-16 04:08:40,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 198707 states and 318378 transitions. [2022-10-16 04:08:40,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 04:08:40,720 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:40,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:40,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 04:08:40,721 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:40,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:40,722 INFO L85 PathProgramCache]: Analyzing trace with hash 288703321, now seen corresponding path program 1 times [2022-10-16 04:08:40,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:40,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439199750] [2022-10-16 04:08:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:40,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 04:08:41,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:41,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439199750] [2022-10-16 04:08:41,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439199750] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:41,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:41,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:08:41,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254738538] [2022-10-16 04:08:41,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:41,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:08:41,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:41,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:08:41,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:08:41,203 INFO L87 Difference]: Start difference. First operand 198707 states and 318378 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:43,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:43,961 INFO L93 Difference]: Finished difference Result 453729 states and 727674 transitions. [2022-10-16 04:08:43,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:08:43,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 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 174 [2022-10-16 04:08:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:44,936 INFO L225 Difference]: With dead ends: 453729 [2022-10-16 04:08:44,936 INFO L226 Difference]: Without dead ends: 453729 [2022-10-16 04:08:44,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:08:44,937 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 1429 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:44,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 3580 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:08:45,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453729 states. [2022-10-16 04:08:51,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453729 to 319485. [2022-10-16 04:08:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319485 states, 319484 states have (on average 1.6003993940228618) internal successors, (511302), 319484 states have internal predecessors, (511302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319485 states to 319485 states and 511302 transitions. [2022-10-16 04:08:53,402 INFO L78 Accepts]: Start accepts. Automaton has 319485 states and 511302 transitions. Word has length 174 [2022-10-16 04:08:53,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:08:53,411 INFO L495 AbstractCegarLoop]: Abstraction has 319485 states and 511302 transitions. [2022-10-16 04:08:53,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:53,412 INFO L276 IsEmpty]: Start isEmpty. Operand 319485 states and 511302 transitions. [2022-10-16 04:08:53,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 04:08:53,427 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:08:53,427 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:08:53,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 04:08:53,427 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:08:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:08:53,428 INFO L85 PathProgramCache]: Analyzing trace with hash -672374051, now seen corresponding path program 1 times [2022-10-16 04:08:53,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:08:53,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190637842] [2022-10-16 04:08:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:08:53,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:08:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:08:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 04:08:53,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:08:53,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190637842] [2022-10-16 04:08:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190637842] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:08:53,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:08:53,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:08:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909118937] [2022-10-16 04:08:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:08:53,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:08:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:08:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:08:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:08:53,759 INFO L87 Difference]: Start difference. First operand 319485 states and 511302 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:08:57,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:08:57,174 INFO L93 Difference]: Finished difference Result 522689 states and 838878 transitions. [2022-10-16 04:08:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:08:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 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 174 [2022-10-16 04:08:57,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:08:59,077 INFO L225 Difference]: With dead ends: 522689 [2022-10-16 04:08:59,077 INFO L226 Difference]: Without dead ends: 522689 [2022-10-16 04:08:59,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:08:59,078 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 1436 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:08:59,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 3187 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:09:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522689 states. [2022-10-16 04:09:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522689 to 431909. [2022-10-16 04:09:09,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431909 states, 431908 states have (on average 1.6014938366503977) internal successors, (691698), 431908 states have internal predecessors, (691698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431909 states to 431909 states and 691698 transitions. [2022-10-16 04:09:11,335 INFO L78 Accepts]: Start accepts. Automaton has 431909 states and 691698 transitions. Word has length 174 [2022-10-16 04:09:11,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:09:11,336 INFO L495 AbstractCegarLoop]: Abstraction has 431909 states and 691698 transitions. [2022-10-16 04:09:11,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 431909 states and 691698 transitions. [2022-10-16 04:09:11,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 04:09:11,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:09:11,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:09:11,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 04:09:11,348 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:09:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:09:11,349 INFO L85 PathProgramCache]: Analyzing trace with hash 424987149, now seen corresponding path program 1 times [2022-10-16 04:09:11,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:09:11,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409962524] [2022-10-16 04:09:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:09:11,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:09:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:09:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 04:09:11,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:09:11,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409962524] [2022-10-16 04:09:11,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409962524] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:09:11,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:09:11,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:09:11,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757238197] [2022-10-16 04:09:11,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:09:11,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:09:11,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:09:11,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:09:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:09:11,730 INFO L87 Difference]: Start difference. First operand 431909 states and 691698 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:15,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:09:15,484 INFO L93 Difference]: Finished difference Result 578145 states and 928106 transitions. [2022-10-16 04:09:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:09:15,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 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 174 [2022-10-16 04:09:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:09:16,886 INFO L225 Difference]: With dead ends: 578145 [2022-10-16 04:09:16,886 INFO L226 Difference]: Without dead ends: 578145 [2022-10-16 04:09:16,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:09:16,888 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 1539 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:09:16,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 3128 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:09:17,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578145 states. [2022-10-16 04:09:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578145 to 500133. [2022-10-16 04:09:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500133 states, 500132 states have (on average 1.602564922860365) internal successors, (801494), 500132 states have internal predecessors, (801494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500133 states to 500133 states and 801494 transitions. [2022-10-16 04:09:29,247 INFO L78 Accepts]: Start accepts. Automaton has 500133 states and 801494 transitions. Word has length 174 [2022-10-16 04:09:29,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:09:29,247 INFO L495 AbstractCegarLoop]: Abstraction has 500133 states and 801494 transitions. [2022-10-16 04:09:29,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 500133 states and 801494 transitions. [2022-10-16 04:09:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 04:09:29,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:09:29,283 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:09:29,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 04:09:29,285 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:09:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:09:29,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1685941975, now seen corresponding path program 1 times [2022-10-16 04:09:29,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:09:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023279643] [2022-10-16 04:09:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:09:29,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:09:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:09:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 04:09:29,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:09:29,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023279643] [2022-10-16 04:09:29,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023279643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:09:29,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:09:29,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:09:29,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748589830] [2022-10-16 04:09:29,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:09:29,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:09:29,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:09:29,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:09:29,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:09:29,588 INFO L87 Difference]: Start difference. First operand 500133 states and 801494 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:09:33,408 INFO L93 Difference]: Finished difference Result 612725 states and 983646 transitions. [2022-10-16 04:09:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:09:33,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 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 174 [2022-10-16 04:09:33,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:09:35,906 INFO L225 Difference]: With dead ends: 612725 [2022-10-16 04:09:35,907 INFO L226 Difference]: Without dead ends: 612725 [2022-10-16 04:09:35,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:09:35,911 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 1457 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:09:35,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 3562 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:09:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612725 states. [2022-10-16 04:09:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612725 to 568357. [2022-10-16 04:09:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568357 states, 568356 states have (on average 1.6033788681741725) internal successors, (911290), 568356 states have internal predecessors, (911290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568357 states to 568357 states and 911290 transitions. [2022-10-16 04:09:49,824 INFO L78 Accepts]: Start accepts. Automaton has 568357 states and 911290 transitions. Word has length 174 [2022-10-16 04:09:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:09:49,825 INFO L495 AbstractCegarLoop]: Abstraction has 568357 states and 911290 transitions. [2022-10-16 04:09:49,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:49,826 INFO L276 IsEmpty]: Start isEmpty. Operand 568357 states and 911290 transitions. [2022-10-16 04:09:49,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-16 04:09:49,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:09:49,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:09:49,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 04:09:49,852 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:09:49,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:09:49,853 INFO L85 PathProgramCache]: Analyzing trace with hash 292806347, now seen corresponding path program 1 times [2022-10-16 04:09:49,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:09:49,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533016697] [2022-10-16 04:09:49,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:09:49,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:09:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:09:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 04:09:50,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:09:50,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533016697] [2022-10-16 04:09:50,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533016697] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:09:50,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:09:50,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 04:09:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540068684] [2022-10-16 04:09:50,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:09:50,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 04:09:50,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:09:50,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 04:09:50,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 04:09:50,105 INFO L87 Difference]: Start difference. First operand 568357 states and 911290 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:09:54,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:09:54,300 INFO L93 Difference]: Finished difference Result 717000 states and 1149966 transitions. [2022-10-16 04:09:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 04:09:54,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 175 [2022-10-16 04:09:54,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:09:55,976 INFO L225 Difference]: With dead ends: 717000 [2022-10-16 04:09:55,977 INFO L226 Difference]: Without dead ends: 717000 [2022-10-16 04:09:55,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 04:09:55,978 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 424 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:09:55,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1571 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:09:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717000 states. [2022-10-16 04:10:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717000 to 686340. [2022-10-16 04:10:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686340 states, 686339 states have (on average 1.6031669481116475) internal successors, (1100316), 686339 states have internal predecessors, (1100316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:10:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686340 states to 686340 states and 1100316 transitions. [2022-10-16 04:10:16,309 INFO L78 Accepts]: Start accepts. Automaton has 686340 states and 1100316 transitions. Word has length 175 [2022-10-16 04:10:16,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:10:16,310 INFO L495 AbstractCegarLoop]: Abstraction has 686340 states and 1100316 transitions. [2022-10-16 04:10:16,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:10:16,310 INFO L276 IsEmpty]: Start isEmpty. Operand 686340 states and 1100316 transitions. [2022-10-16 04:10:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-16 04:10:16,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:10:16,320 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:10:16,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 04:10:16,321 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:10:16,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:10:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1439680304, now seen corresponding path program 1 times [2022-10-16 04:10:16,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:10:16,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922384744] [2022-10-16 04:10:16,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:10:16,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:10:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:10:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 04:10:16,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:10:16,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922384744] [2022-10-16 04:10:16,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922384744] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:10:16,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:10:16,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 04:10:16,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144713814] [2022-10-16 04:10:16,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:10:16,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:10:16,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:10:16,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:10:16,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:10:16,627 INFO L87 Difference]: Start difference. First operand 686340 states and 1100316 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:10:24,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:10:24,248 INFO L93 Difference]: Finished difference Result 1135802 states and 1819736 transitions. [2022-10-16 04:10:24,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:10:24,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 175 [2022-10-16 04:10:24,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:10:28,991 INFO L225 Difference]: With dead ends: 1135802 [2022-10-16 04:10:28,991 INFO L226 Difference]: Without dead ends: 1135802 [2022-10-16 04:10:28,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 04:10:28,992 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 195 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:10:28,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1066 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:10:30,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135802 states.