/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:54:59,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:54:59,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:54:59,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:54:59,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:54:59,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:54:59,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:54:59,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:54:59,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:54:59,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:54:59,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:54:59,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:54:59,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:54:59,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:54:59,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:54:59,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:54:59,803 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:54:59,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:54:59,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:54:59,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:54:59,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:54:59,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:54:59,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:54:59,804 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:54:59,805 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:54:59,805 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:54:59,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:54:59,805 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:54:59,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:54:59,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:54:59,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:54:59,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:54:59,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:54:59,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:54:59,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:54:59,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:54:59,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:54:59,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:54:59,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:55:00,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:55:00,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:55:00,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:55:00,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:55:00,217 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:55:00,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.UNBOUNDED.pals.c [2022-10-16 02:55:00,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be69f7d76/dcef62b3df7a46b79007084b5f79ec5c/FLAG14f248ce6 [2022-10-16 02:55:01,246 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:55:01,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.UNBOUNDED.pals.c [2022-10-16 02:55:01,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be69f7d76/dcef62b3df7a46b79007084b5f79ec5c/FLAG14f248ce6 [2022-10-16 02:55:01,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be69f7d76/dcef62b3df7a46b79007084b5f79ec5c [2022-10-16 02:55:01,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:55:01,309 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:55:01,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:55:01,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:55:01,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:55:01,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:01" (1/1) ... [2022-10-16 02:55:01,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0c425c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:01, skipping insertion in model container [2022-10-16 02:55:01,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:01" (1/1) ... [2022-10-16 02:55:01,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:55:01,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:55:01,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.UNBOUNDED.pals.c[65679,65692] [2022-10-16 02:55:01,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:55:01,956 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:55:02,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.UNBOUNDED.pals.c[65679,65692] [2022-10-16 02:55:02,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:55:02,158 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:55:02,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02 WrapperNode [2022-10-16 02:55:02,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:55:02,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:55:02,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:55:02,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:55:02,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,321 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2133 [2022-10-16 02:55:02,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:55:02,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:55:02,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:55:02,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:55:02,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:55:02,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:55:02,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:55:02,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:55:02,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2022-10-16 02:55:02,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:55:02,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:55:02,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 02:55:02,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 02:55:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:55:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:55:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:55:02,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:55:02,966 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:55:02,969 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:55:04,914 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:55:04,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:55:04,937 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:55:04,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:04 BoogieIcfgContainer [2022-10-16 02:55:04,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:55:04,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:55:04,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:55:04,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:55:04,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:55:01" (1/3) ... [2022-10-16 02:55:04,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2f6dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:04, skipping insertion in model container [2022-10-16 02:55:04,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (2/3) ... [2022-10-16 02:55:04,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2f6dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:04, skipping insertion in model container [2022-10-16 02:55:04,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:04" (3/3) ... [2022-10-16 02:55:04,952 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.UNBOUNDED.pals.c [2022-10-16 02:55:04,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:55:04,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:55:05,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:55:05,058 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;@18c94c48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:55:05,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:55:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 747 states, 744 states have (on average 1.846774193548387) internal successors, (1374), 746 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:05,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 02:55:05,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:05,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:05,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:05,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:05,110 INFO L85 PathProgramCache]: Analyzing trace with hash -72245995, now seen corresponding path program 1 times [2022-10-16 02:55:05,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:05,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17145874] [2022-10-16 02:55:05,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:05,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:05,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:05,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17145874] [2022-10-16 02:55:05,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17145874] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:05,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:05,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:55:05,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778336114] [2022-10-16 02:55:05,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:05,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:55:05,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:05,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:55:05,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:55:05,964 INFO L87 Difference]: Start difference. First operand has 747 states, 744 states have (on average 1.846774193548387) internal successors, (1374), 746 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:06,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:06,070 INFO L93 Difference]: Finished difference Result 742 states and 1366 transitions. [2022-10-16 02:55:06,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:55:06,075 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-16 02:55:06,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:06,112 INFO L225 Difference]: With dead ends: 742 [2022-10-16 02:55:06,112 INFO L226 Difference]: Without dead ends: 742 [2022-10-16 02:55:06,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:55:06,121 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:06,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:06,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-10-16 02:55:06,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2022-10-16 02:55:06,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.843454790823212) internal successors, (1366), 741 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1366 transitions. [2022-10-16 02:55:06,248 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1366 transitions. Word has length 130 [2022-10-16 02:55:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:06,249 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1366 transitions. [2022-10-16 02:55:06,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:06,250 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1366 transitions. [2022-10-16 02:55:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-16 02:55:06,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:06,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:06,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:55:06,261 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:06,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1100835246, now seen corresponding path program 1 times [2022-10-16 02:55:06,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:06,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179555905] [2022-10-16 02:55:06,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:06,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:06,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:06,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179555905] [2022-10-16 02:55:06,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179555905] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:06,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:06,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:55:06,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517619982] [2022-10-16 02:55:06,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:06,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:55:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:06,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:55:06,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:55:06,882 INFO L87 Difference]: Start difference. First operand 742 states and 1366 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:07,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:07,114 INFO L93 Difference]: Finished difference Result 745 states and 1368 transitions. [2022-10-16 02:55:07,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:55:07,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-10-16 02:55:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:07,121 INFO L225 Difference]: With dead ends: 745 [2022-10-16 02:55:07,121 INFO L226 Difference]: Without dead ends: 742 [2022-10-16 02:55:07,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:55:07,124 INFO L413 NwaCegarLoop]: 1364 mSDtfsCounter, 3 mSDsluCounter, 4024 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5388 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:07,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5388 Invalid, 75 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:55:07,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-10-16 02:55:07,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2022-10-16 02:55:07,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.7557354925775979) internal successors, (1301), 741 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1301 transitions. [2022-10-16 02:55:07,149 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1301 transitions. Word has length 153 [2022-10-16 02:55:07,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:07,150 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1301 transitions. [2022-10-16 02:55:07,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:07,150 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1301 transitions. [2022-10-16 02:55:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-10-16 02:55:07,155 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:07,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:07,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:55:07,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:07,157 INFO L85 PathProgramCache]: Analyzing trace with hash -698376180, now seen corresponding path program 1 times [2022-10-16 02:55:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:07,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097455338] [2022-10-16 02:55:07,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:07,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:07,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:07,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097455338] [2022-10-16 02:55:07,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097455338] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:07,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:07,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:07,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253082045] [2022-10-16 02:55:07,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:07,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:07,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:07,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:07,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:07,509 INFO L87 Difference]: Start difference. First operand 742 states and 1301 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:07,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:07,578 INFO L93 Difference]: Finished difference Result 919 states and 1599 transitions. [2022-10-16 02:55:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:07,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2022-10-16 02:55:07,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:07,586 INFO L225 Difference]: With dead ends: 919 [2022-10-16 02:55:07,586 INFO L226 Difference]: Without dead ends: 919 [2022-10-16 02:55:07,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:07,589 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 295 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:07,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 2524 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:07,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-10-16 02:55:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 916. [2022-10-16 02:55:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 915 states have (on average 1.7453551912568306) internal successors, (1597), 915 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1597 transitions. [2022-10-16 02:55:07,619 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1597 transitions. Word has length 217 [2022-10-16 02:55:07,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:07,620 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1597 transitions. [2022-10-16 02:55:07,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1597 transitions. [2022-10-16 02:55:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-10-16 02:55:07,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:07,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:07,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:55:07,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:07,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:07,633 INFO L85 PathProgramCache]: Analyzing trace with hash -128120140, now seen corresponding path program 1 times [2022-10-16 02:55:07,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:07,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707893776] [2022-10-16 02:55:07,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:07,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:08,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:08,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707893776] [2022-10-16 02:55:08,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707893776] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:08,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:08,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:08,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898231826] [2022-10-16 02:55:08,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:08,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:08,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:08,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:08,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:08,081 INFO L87 Difference]: Start difference. First operand 916 states and 1597 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:08,130 INFO L93 Difference]: Finished difference Result 1257 states and 2175 transitions. [2022-10-16 02:55:08,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:08,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2022-10-16 02:55:08,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:08,140 INFO L225 Difference]: With dead ends: 1257 [2022-10-16 02:55:08,141 INFO L226 Difference]: Without dead ends: 1257 [2022-10-16 02:55:08,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:08,143 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 295 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:08,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 2537 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2022-10-16 02:55:08,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1253. [2022-10-16 02:55:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 1.7348242811501597) internal successors, (2172), 1252 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2172 transitions. [2022-10-16 02:55:08,186 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2172 transitions. Word has length 221 [2022-10-16 02:55:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:08,187 INFO L495 AbstractCegarLoop]: Abstraction has 1253 states and 2172 transitions. [2022-10-16 02:55:08,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:08,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2172 transitions. [2022-10-16 02:55:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 02:55:08,195 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:08,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:08,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:55:08,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:08,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1683241124, now seen corresponding path program 1 times [2022-10-16 02:55:08,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:08,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609234287] [2022-10-16 02:55:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:08,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:08,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609234287] [2022-10-16 02:55:08,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609234287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:08,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:08,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:08,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183366678] [2022-10-16 02:55:08,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:08,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:08,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:08,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:08,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:08,516 INFO L87 Difference]: Start difference. First operand 1253 states and 2172 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:08,608 INFO L93 Difference]: Finished difference Result 1907 states and 3277 transitions. [2022-10-16 02:55:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:08,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2022-10-16 02:55:08,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:08,621 INFO L225 Difference]: With dead ends: 1907 [2022-10-16 02:55:08,621 INFO L226 Difference]: Without dead ends: 1907 [2022-10-16 02:55:08,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:08,624 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 287 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:08,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 2538 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:08,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2022-10-16 02:55:08,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1901. [2022-10-16 02:55:08,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1900 states have (on average 1.7221052631578948) internal successors, (3272), 1900 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 3272 transitions. [2022-10-16 02:55:08,696 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 3272 transitions. Word has length 225 [2022-10-16 02:55:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:08,697 INFO L495 AbstractCegarLoop]: Abstraction has 1901 states and 3272 transitions. [2022-10-16 02:55:08,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:08,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 3272 transitions. [2022-10-16 02:55:08,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-10-16 02:55:08,704 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:08,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:08,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:55:08,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:08,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1320539652, now seen corresponding path program 1 times [2022-10-16 02:55:08,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:08,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971088457] [2022-10-16 02:55:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:08,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:09,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:09,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971088457] [2022-10-16 02:55:09,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971088457] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:09,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:09,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:09,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319736035] [2022-10-16 02:55:09,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:09,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:09,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:09,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:09,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:09,139 INFO L87 Difference]: Start difference. First operand 1901 states and 3272 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:09,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:09,230 INFO L93 Difference]: Finished difference Result 3155 states and 5381 transitions. [2022-10-16 02:55:09,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:09,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 229 [2022-10-16 02:55:09,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:09,252 INFO L225 Difference]: With dead ends: 3155 [2022-10-16 02:55:09,252 INFO L226 Difference]: Without dead ends: 3155 [2022-10-16 02:55:09,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:09,257 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 279 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:09,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 2539 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2022-10-16 02:55:09,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3145. [2022-10-16 02:55:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3144 states have (on average 1.7086513994910941) internal successors, (5372), 3144 states have internal predecessors, (5372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 5372 transitions. [2022-10-16 02:55:09,392 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 5372 transitions. Word has length 229 [2022-10-16 02:55:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:09,393 INFO L495 AbstractCegarLoop]: Abstraction has 3145 states and 5372 transitions. [2022-10-16 02:55:09,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 5372 transitions. [2022-10-16 02:55:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-10-16 02:55:09,399 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:09,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:09,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:55:09,400 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:09,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2073741652, now seen corresponding path program 1 times [2022-10-16 02:55:09,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:09,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901307340] [2022-10-16 02:55:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:09,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:09,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:09,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901307340] [2022-10-16 02:55:09,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901307340] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:09,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:09,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:09,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199775033] [2022-10-16 02:55:09,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:09,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:09,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:09,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:09,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:09,768 INFO L87 Difference]: Start difference. First operand 3145 states and 5372 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:09,839 INFO L93 Difference]: Finished difference Result 5547 states and 9389 transitions. [2022-10-16 02:55:09,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:09,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2022-10-16 02:55:09,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:09,871 INFO L225 Difference]: With dead ends: 5547 [2022-10-16 02:55:09,872 INFO L226 Difference]: Without dead ends: 5547 [2022-10-16 02:55:09,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:09,876 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 271 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:09,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 2540 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2022-10-16 02:55:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 5529. [2022-10-16 02:55:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5529 states, 5528 states have (on average 1.695369030390738) internal successors, (9372), 5528 states have internal predecessors, (9372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:10,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5529 states to 5529 states and 9372 transitions. [2022-10-16 02:55:10,047 INFO L78 Accepts]: Start accepts. Automaton has 5529 states and 9372 transitions. Word has length 233 [2022-10-16 02:55:10,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:10,048 INFO L495 AbstractCegarLoop]: Abstraction has 5529 states and 9372 transitions. [2022-10-16 02:55:10,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:10,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5529 states and 9372 transitions. [2022-10-16 02:55:10,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-16 02:55:10,055 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:10,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:10,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:55:10,056 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:10,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:10,057 INFO L85 PathProgramCache]: Analyzing trace with hash 337897812, now seen corresponding path program 1 times [2022-10-16 02:55:10,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:10,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010579387] [2022-10-16 02:55:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:10,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010579387] [2022-10-16 02:55:10,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010579387] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:10,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:10,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:55:10,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934182584] [2022-10-16 02:55:10,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:10,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:55:10,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:10,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:55:10,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:55:10,753 INFO L87 Difference]: Start difference. First operand 5529 states and 9372 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:11,616 INFO L93 Difference]: Finished difference Result 28779 states and 48797 transitions. [2022-10-16 02:55:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:55:11,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2022-10-16 02:55:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:11,736 INFO L225 Difference]: With dead ends: 28779 [2022-10-16 02:55:11,736 INFO L226 Difference]: Without dead ends: 28779 [2022-10-16 02:55:11,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:55:11,738 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 3262 mSDsluCounter, 12480 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 13797 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:11,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 13797 Invalid, 395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:55:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28779 states. [2022-10-16 02:55:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28779 to 10323. [2022-10-16 02:55:12,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10323 states, 10322 states have (on average 1.690854485564813) internal successors, (17453), 10322 states have internal predecessors, (17453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10323 states to 10323 states and 17453 transitions. [2022-10-16 02:55:12,347 INFO L78 Accepts]: Start accepts. Automaton has 10323 states and 17453 transitions. Word has length 237 [2022-10-16 02:55:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:12,348 INFO L495 AbstractCegarLoop]: Abstraction has 10323 states and 17453 transitions. [2022-10-16 02:55:12,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:12,349 INFO L276 IsEmpty]: Start isEmpty. Operand 10323 states and 17453 transitions. [2022-10-16 02:55:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-10-16 02:55:12,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:12,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:12,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:55:12,361 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:12,365 INFO L85 PathProgramCache]: Analyzing trace with hash -381481659, now seen corresponding path program 1 times [2022-10-16 02:55:12,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:12,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979923826] [2022-10-16 02:55:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:12,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:12,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:12,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979923826] [2022-10-16 02:55:12,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979923826] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:12,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:12,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:55:12,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387780933] [2022-10-16 02:55:12,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:12,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:55:12,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:55:12,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:55:12,821 INFO L87 Difference]: Start difference. First operand 10323 states and 17453 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:13,054 INFO L93 Difference]: Finished difference Result 20485 states and 34727 transitions. [2022-10-16 02:55:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:55:13,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2022-10-16 02:55:13,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:13,119 INFO L225 Difference]: With dead ends: 20485 [2022-10-16 02:55:13,120 INFO L226 Difference]: Without dead ends: 20485 [2022-10-16 02:55:13,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:55:13,123 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 959 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 3904 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:13,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 3904 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:55:13,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20485 states. [2022-10-16 02:55:13,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20485 to 15371. [2022-10-16 02:55:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15371 states, 15370 states have (on average 1.6913467794404684) internal successors, (25996), 15370 states have internal predecessors, (25996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15371 states to 15371 states and 25996 transitions. [2022-10-16 02:55:13,651 INFO L78 Accepts]: Start accepts. Automaton has 15371 states and 25996 transitions. Word has length 238 [2022-10-16 02:55:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:13,652 INFO L495 AbstractCegarLoop]: Abstraction has 15371 states and 25996 transitions. [2022-10-16 02:55:13,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 15371 states and 25996 transitions. [2022-10-16 02:55:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 02:55:13,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:13,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:13,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:55:13,664 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:13,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:13,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1038404437, now seen corresponding path program 1 times [2022-10-16 02:55:13,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:13,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539861609] [2022-10-16 02:55:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:13,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:14,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:14,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539861609] [2022-10-16 02:55:14,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539861609] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:14,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:14,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:55:14,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072426792] [2022-10-16 02:55:14,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:14,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:55:14,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:14,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:55:14,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:55:14,125 INFO L87 Difference]: Start difference. First operand 15371 states and 25996 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:14,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:14,365 INFO L93 Difference]: Finished difference Result 30511 states and 51614 transitions. [2022-10-16 02:55:14,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:55:14,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2022-10-16 02:55:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:14,454 INFO L225 Difference]: With dead ends: 30511 [2022-10-16 02:55:14,454 INFO L226 Difference]: Without dead ends: 30511 [2022-10-16 02:55:14,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:55:14,455 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 959 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:14,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 4139 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:55:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30511 states. [2022-10-16 02:55:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30511 to 22893. [2022-10-16 02:55:15,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22893 states, 22892 states have (on average 1.6890616809365717) internal successors, (38666), 22892 states have internal predecessors, (38666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:15,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22893 states to 22893 states and 38666 transitions. [2022-10-16 02:55:15,270 INFO L78 Accepts]: Start accepts. Automaton has 22893 states and 38666 transitions. Word has length 239 [2022-10-16 02:55:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:15,271 INFO L495 AbstractCegarLoop]: Abstraction has 22893 states and 38666 transitions. [2022-10-16 02:55:15,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 22893 states and 38666 transitions. [2022-10-16 02:55:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-16 02:55:15,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:15,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:15,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:55:15,289 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:15,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash 240830268, now seen corresponding path program 1 times [2022-10-16 02:55:15,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:15,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573894634] [2022-10-16 02:55:15,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:15,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:15,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:15,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573894634] [2022-10-16 02:55:15,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573894634] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:15,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:15,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:55:15,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388429760] [2022-10-16 02:55:15,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:15,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:55:15,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:15,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:55:15,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:55:15,697 INFO L87 Difference]: Start difference. First operand 22893 states and 38666 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:16,098 INFO L93 Difference]: Finished difference Result 45537 states and 76952 transitions. [2022-10-16 02:55:16,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:55:16,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2022-10-16 02:55:16,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:16,230 INFO L225 Difference]: With dead ends: 45537 [2022-10-16 02:55:16,230 INFO L226 Difference]: Without dead ends: 45537 [2022-10-16 02:55:16,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:55:16,231 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 957 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:16,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 4141 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:55:16,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45537 states. [2022-10-16 02:55:17,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45537 to 34145. [2022-10-16 02:55:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34145 states, 34144 states have (on average 1.6870899718837864) internal successors, (57604), 34144 states have internal predecessors, (57604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34145 states to 34145 states and 57604 transitions. [2022-10-16 02:55:17,858 INFO L78 Accepts]: Start accepts. Automaton has 34145 states and 57604 transitions. Word has length 240 [2022-10-16 02:55:17,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:17,859 INFO L495 AbstractCegarLoop]: Abstraction has 34145 states and 57604 transitions. [2022-10-16 02:55:17,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 34145 states and 57604 transitions. [2022-10-16 02:55:17,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-16 02:55:17,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:17,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:17,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:55:17,880 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:17,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:17,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1445801445, now seen corresponding path program 1 times [2022-10-16 02:55:17,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:17,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524880477] [2022-10-16 02:55:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:18,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:18,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524880477] [2022-10-16 02:55:18,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524880477] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:18,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:18,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:18,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032847243] [2022-10-16 02:55:18,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:18,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:18,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:18,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:18,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:18,118 INFO L87 Difference]: Start difference. First operand 34145 states and 57604 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:18,476 INFO L93 Difference]: Finished difference Result 53073 states and 89407 transitions. [2022-10-16 02:55:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:18,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-16 02:55:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:18,639 INFO L225 Difference]: With dead ends: 53073 [2022-10-16 02:55:18,639 INFO L226 Difference]: Without dead ends: 53073 [2022-10-16 02:55:18,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:18,640 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 302 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:18,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 2813 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:18,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53073 states. [2022-10-16 02:55:19,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53073 to 53071. [2022-10-16 02:55:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53071 states, 53070 states have (on average 1.684680610514415) internal successors, (89406), 53070 states have internal predecessors, (89406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53071 states to 53071 states and 89406 transitions. [2022-10-16 02:55:20,214 INFO L78 Accepts]: Start accepts. Automaton has 53071 states and 89406 transitions. Word has length 241 [2022-10-16 02:55:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:20,215 INFO L495 AbstractCegarLoop]: Abstraction has 53071 states and 89406 transitions. [2022-10-16 02:55:20,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 53071 states and 89406 transitions. [2022-10-16 02:55:20,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-16 02:55:20,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:20,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:20,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:55:20,226 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:20,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:20,226 INFO L85 PathProgramCache]: Analyzing trace with hash 384077095, now seen corresponding path program 1 times [2022-10-16 02:55:20,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:20,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129513904] [2022-10-16 02:55:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:20,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:20,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:20,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129513904] [2022-10-16 02:55:20,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129513904] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:20,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:20,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:20,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497885617] [2022-10-16 02:55:20,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:20,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:20,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:20,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:20,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:20,479 INFO L87 Difference]: Start difference. First operand 53071 states and 89406 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:21,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:21,100 INFO L93 Difference]: Finished difference Result 81957 states and 137608 transitions. [2022-10-16 02:55:21,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:21,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-16 02:55:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:21,432 INFO L225 Difference]: With dead ends: 81957 [2022-10-16 02:55:21,432 INFO L226 Difference]: Without dead ends: 81957 [2022-10-16 02:55:21,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:21,434 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 294 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:21,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 2790 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:21,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81957 states. [2022-10-16 02:55:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81957 to 81955. [2022-10-16 02:55:23,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81955 states, 81954 states have (on average 1.6790760670620104) internal successors, (137607), 81954 states have internal predecessors, (137607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81955 states to 81955 states and 137607 transitions. [2022-10-16 02:55:24,095 INFO L78 Accepts]: Start accepts. Automaton has 81955 states and 137607 transitions. Word has length 241 [2022-10-16 02:55:24,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:24,095 INFO L495 AbstractCegarLoop]: Abstraction has 81955 states and 137607 transitions. [2022-10-16 02:55:24,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:24,096 INFO L276 IsEmpty]: Start isEmpty. Operand 81955 states and 137607 transitions. [2022-10-16 02:55:24,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-16 02:55:24,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:24,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:24,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:55:24,102 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:24,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:24,103 INFO L85 PathProgramCache]: Analyzing trace with hash 698928679, now seen corresponding path program 1 times [2022-10-16 02:55:24,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:24,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761449238] [2022-10-16 02:55:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:24,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:24,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:24,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761449238] [2022-10-16 02:55:24,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761449238] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:24,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:24,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260786318] [2022-10-16 02:55:24,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:24,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:24,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:24,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:24,316 INFO L87 Difference]: Start difference. First operand 81955 states and 137607 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:25,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:25,264 INFO L93 Difference]: Finished difference Result 125892 states and 210572 transitions. [2022-10-16 02:55:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-16 02:55:25,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:25,511 INFO L225 Difference]: With dead ends: 125892 [2022-10-16 02:55:25,517 INFO L226 Difference]: Without dead ends: 125892 [2022-10-16 02:55:25,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:25,520 INFO L413 NwaCegarLoop]: 1506 mSDtfsCounter, 286 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:25,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 2759 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125892 states. [2022-10-16 02:55:27,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125892 to 125890. [2022-10-16 02:55:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125890 states, 125889 states have (on average 1.6726719570415207) internal successors, (210571), 125889 states have internal predecessors, (210571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125890 states to 125890 states and 210571 transitions. [2022-10-16 02:55:27,894 INFO L78 Accepts]: Start accepts. Automaton has 125890 states and 210571 transitions. Word has length 241 [2022-10-16 02:55:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:27,894 INFO L495 AbstractCegarLoop]: Abstraction has 125890 states and 210571 transitions. [2022-10-16 02:55:27,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 125890 states and 210571 transitions. [2022-10-16 02:55:27,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-16 02:55:27,901 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:27,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:27,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:55:27,902 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:27,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1094586151, now seen corresponding path program 1 times [2022-10-16 02:55:27,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:27,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101933860] [2022-10-16 02:55:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:27,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:28,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:28,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101933860] [2022-10-16 02:55:28,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101933860] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:28,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:28,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:28,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389842353] [2022-10-16 02:55:28,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:28,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:28,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:28,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:28,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:28,514 INFO L87 Difference]: Start difference. First operand 125890 states and 210571 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:29,220 INFO L93 Difference]: Finished difference Result 177362 states and 295654 transitions. [2022-10-16 02:55:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-16 02:55:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:29,921 INFO L225 Difference]: With dead ends: 177362 [2022-10-16 02:55:29,922 INFO L226 Difference]: Without dead ends: 177362 [2022-10-16 02:55:29,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:29,923 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 278 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:29,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 2729 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177362 states. [2022-10-16 02:55:32,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177362 to 177360. [2022-10-16 02:55:32,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177360 states, 177359 states have (on average 1.6669748927316912) internal successors, (295653), 177359 states have internal predecessors, (295653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:33,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177360 states to 177360 states and 295653 transitions. [2022-10-16 02:55:33,132 INFO L78 Accepts]: Start accepts. Automaton has 177360 states and 295653 transitions. Word has length 241 [2022-10-16 02:55:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:33,135 INFO L495 AbstractCegarLoop]: Abstraction has 177360 states and 295653 transitions. [2022-10-16 02:55:33,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 177360 states and 295653 transitions. [2022-10-16 02:55:33,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-16 02:55:33,157 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:33,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:33,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:55:33,158 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:33,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:33,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1096527833, now seen corresponding path program 1 times [2022-10-16 02:55:33,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:33,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073330846] [2022-10-16 02:55:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:33,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:33,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:33,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073330846] [2022-10-16 02:55:33,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073330846] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:33,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:33,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:55:33,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090992247] [2022-10-16 02:55:33,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:33,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:55:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:55:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:33,430 INFO L87 Difference]: Start difference. First operand 177360 states and 295653 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:34,737 INFO L93 Difference]: Finished difference Result 248182 states and 412136 transitions. [2022-10-16 02:55:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:55:34,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-16 02:55:34,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:35,171 INFO L225 Difference]: With dead ends: 248182 [2022-10-16 02:55:35,172 INFO L226 Difference]: Without dead ends: 248182 [2022-10-16 02:55:35,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:55:35,176 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 270 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:35,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 2698 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:55:35,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248182 states. [2022-10-16 02:55:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248182 to 248180. [2022-10-16 02:55:39,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248180 states, 248179 states have (on average 1.6606360731568748) internal successors, (412135), 248179 states have internal predecessors, (412135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248180 states to 248180 states and 412135 transitions. [2022-10-16 02:55:40,197 INFO L78 Accepts]: Start accepts. Automaton has 248180 states and 412135 transitions. Word has length 241 [2022-10-16 02:55:40,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:40,198 INFO L495 AbstractCegarLoop]: Abstraction has 248180 states and 412135 transitions. [2022-10-16 02:55:40,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 248180 states and 412135 transitions. [2022-10-16 02:55:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-16 02:55:40,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:40,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:40,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:55:40,201 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:40,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:40,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1411404802, now seen corresponding path program 1 times [2022-10-16 02:55:40,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:40,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945321568] [2022-10-16 02:55:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:40,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:40,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:40,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945321568] [2022-10-16 02:55:40,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945321568] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:40,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:40,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:55:40,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152396908] [2022-10-16 02:55:40,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:40,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:55:40,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:40,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:55:40,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:55:40,505 INFO L87 Difference]: Start difference. First operand 248180 states and 412135 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:55:43,931 INFO L93 Difference]: Finished difference Result 567288 states and 941378 transitions. [2022-10-16 02:55:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:55:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-16 02:55:43,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:55:45,190 INFO L225 Difference]: With dead ends: 567288 [2022-10-16 02:55:45,190 INFO L226 Difference]: Without dead ends: 567288 [2022-10-16 02:55:45,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:55:45,191 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 955 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 4143 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:55:45,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 4143 Invalid, 52 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:55:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567288 states. [2022-10-16 02:55:52,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567288 to 407009. [2022-10-16 02:55:53,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407009 states, 407008 states have (on average 1.6565399205912414) internal successors, (674225), 407008 states have internal predecessors, (674225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407009 states to 407009 states and 674225 transitions. [2022-10-16 02:55:56,265 INFO L78 Accepts]: Start accepts. Automaton has 407009 states and 674225 transitions. Word has length 241 [2022-10-16 02:55:56,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:55:56,266 INFO L495 AbstractCegarLoop]: Abstraction has 407009 states and 674225 transitions. [2022-10-16 02:55:56,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:55:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 407009 states and 674225 transitions. [2022-10-16 02:55:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-10-16 02:55:56,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:55:56,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:55:56,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:55:56,270 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:55:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:55:56,270 INFO L85 PathProgramCache]: Analyzing trace with hash -786485965, now seen corresponding path program 1 times [2022-10-16 02:55:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:55:56,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255185743] [2022-10-16 02:55:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:55:56,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:55:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:55:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:55:56,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:55:56,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255185743] [2022-10-16 02:55:56,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255185743] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:55:56,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:55:56,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:55:56,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495911227] [2022-10-16 02:55:56,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:55:56,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:55:56,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:55:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:55:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:55:56,642 INFO L87 Difference]: Start difference. First operand 407009 states and 674225 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:02,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:02,693 INFO L93 Difference]: Finished difference Result 920481 states and 1523846 transitions. [2022-10-16 02:56:02,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:56:02,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 242 [2022-10-16 02:56:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:06,427 INFO L225 Difference]: With dead ends: 920481 [2022-10-16 02:56:06,427 INFO L226 Difference]: Without dead ends: 920481 [2022-10-16 02:56:06,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:56:06,431 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 953 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 4145 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:06,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 4145 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:56:07,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920481 states. [2022-10-16 02:56:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920481 to 662574. [2022-10-16 02:56:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662574 states, 662573 states have (on average 1.65256205731293) internal successors, (1094943), 662573 states have internal predecessors, (1094943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662574 states to 662574 states and 1094943 transitions. [2022-10-16 02:56:26,549 INFO L78 Accepts]: Start accepts. Automaton has 662574 states and 1094943 transitions. Word has length 242 [2022-10-16 02:56:26,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:26,550 INFO L495 AbstractCegarLoop]: Abstraction has 662574 states and 1094943 transitions. [2022-10-16 02:56:26,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 662574 states and 1094943 transitions. [2022-10-16 02:56:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-10-16 02:56:26,553 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:26,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:56:26,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:56:26,554 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:26,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2091464427, now seen corresponding path program 1 times [2022-10-16 02:56:26,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:26,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057052176] [2022-10-16 02:56:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:26,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:28,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:28,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057052176] [2022-10-16 02:56:28,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057052176] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:28,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:28,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:56:28,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255019599] [2022-10-16 02:56:28,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:28,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:56:28,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:28,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:56:28,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:56:28,393 INFO L87 Difference]: Start difference. First operand 662574 states and 1094943 transitions. Second operand has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:32,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:56:32,591 INFO L93 Difference]: Finished difference Result 662576 states and 1091819 transitions. [2022-10-16 02:56:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:56:32,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2022-10-16 02:56:32,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:56:35,249 INFO L225 Difference]: With dead ends: 662576 [2022-10-16 02:56:35,250 INFO L226 Difference]: Without dead ends: 662576 [2022-10-16 02:56:35,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:56:35,251 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 1100 mSDsluCounter, 5016 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:56:35,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 6314 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:56:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662576 states. [2022-10-16 02:56:48,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662576 to 662574. [2022-10-16 02:56:49,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662574 states, 662573 states have (on average 1.6478455958815104) internal successors, (1091818), 662573 states have internal predecessors, (1091818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662574 states to 662574 states and 1091818 transitions. [2022-10-16 02:56:54,741 INFO L78 Accepts]: Start accepts. Automaton has 662574 states and 1091818 transitions. Word has length 244 [2022-10-16 02:56:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:56:54,742 INFO L495 AbstractCegarLoop]: Abstraction has 662574 states and 1091818 transitions. [2022-10-16 02:56:54,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:56:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 662574 states and 1091818 transitions. [2022-10-16 02:56:54,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-10-16 02:56:54,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:56:54,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:56:54,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:56:54,749 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:56:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:56:54,765 INFO L85 PathProgramCache]: Analyzing trace with hash 224948069, now seen corresponding path program 1 times [2022-10-16 02:56:54,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:56:54,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267083676] [2022-10-16 02:56:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:56:54,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:56:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:56:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:56:55,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:56:55,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267083676] [2022-10-16 02:56:55,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267083676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:56:55,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:56:55,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:56:55,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922323225] [2022-10-16 02:56:55,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:56:55,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:56:55,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:56:55,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:56:55,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:56:55,657 INFO L87 Difference]: Start difference. First operand 662574 states and 1091818 transitions. Second operand has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:57:05,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:57:05,067 INFO L93 Difference]: Finished difference Result 1296836 states and 2128274 transitions. [2022-10-16 02:57:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:57:05,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2022-10-16 02:57:05,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted.