/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.4.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:52:39,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:52:39,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:52:40,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:52:40,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:52:40,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:52:40,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:52:40,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:52:40,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:52:40,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:52:40,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:52:40,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:52:40,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:52:40,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:52:40,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:52:40,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:52:40,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:52:40,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:52:40,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:52:40,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:52:40,070 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 02:52:40,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:52:40,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:52:40,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:52:40,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:52:40,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:52:40,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:52:40,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:52:40,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:52:40,128 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:52:40,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:52:40,131 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:52:40,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:52:40,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:52:40,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:52:40,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:52:40,132 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:52:40,132 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:52:40,132 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:52:40,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:52:40,132 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:52:40,133 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:52:40,133 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:52:40,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:52:40,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:52:40,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:52:40,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:52:40,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:52:40,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:52:40,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:52:40,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:52:40,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:52:40,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:52:40,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:52:40,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:52:40,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:52:40,525 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:52:40,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2022-10-16 02:52:40,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3efb6e8/87e06eb5229e47dda420c470e608dd0e/FLAG47c4ded16 [2022-10-16 02:52:41,398 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:52:41,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2022-10-16 02:52:41,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3efb6e8/87e06eb5229e47dda420c470e608dd0e/FLAG47c4ded16 [2022-10-16 02:52:41,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3efb6e8/87e06eb5229e47dda420c470e608dd0e [2022-10-16 02:52:41,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:52:41,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:52:41,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:52:41,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:52:41,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:52:41,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:41" (1/1) ... [2022-10-16 02:52:41,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268939e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:41, skipping insertion in model container [2022-10-16 02:52:41,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:41" (1/1) ... [2022-10-16 02:52:41,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:52:41,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:52:42,079 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.4.3.ufo.UNBOUNDED.pals.c[31172,31185] [2022-10-16 02:52:42,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:52:42,109 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:52:42,235 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.4.3.ufo.UNBOUNDED.pals.c[31172,31185] [2022-10-16 02:52:42,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:52:42,265 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:52:42,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42 WrapperNode [2022-10-16 02:52:42,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:52:42,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:52:42,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:52:42,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:52:42,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,382 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1008 [2022-10-16 02:52:42,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:52:42,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:52:42,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:52:42,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:52:42,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:52:42,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:52:42,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:52:42,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:52:42,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (1/1) ... [2022-10-16 02:52:42,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:52:42,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:52:42,574 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 02:52:42,597 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 02:52:42,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:52:42,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:52:42,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:52:42,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:52:42,835 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:52:42,838 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:52:44,054 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:52:44,080 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:52:44,080 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:52:44,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:44 BoogieIcfgContainer [2022-10-16 02:52:44,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:52:44,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:52:44,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:52:44,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:52:44,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:52:41" (1/3) ... [2022-10-16 02:52:44,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca9e1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:44, skipping insertion in model container [2022-10-16 02:52:44,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:42" (2/3) ... [2022-10-16 02:52:44,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca9e1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:44, skipping insertion in model container [2022-10-16 02:52:44,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:44" (3/3) ... [2022-10-16 02:52:44,096 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2022-10-16 02:52:44,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:52:44,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:52:44,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:52:44,194 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;@e613009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:52:44,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:52:44,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 330 states have (on average 1.803030303030303) internal successors, (595), 332 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 02:52:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 02:52:44,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:44,218 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] [2022-10-16 02:52:44,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:44,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1596460729, now seen corresponding path program 1 times [2022-10-16 02:52:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:44,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711954871] [2022-10-16 02:52:44,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:44,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:44,721 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 02:52:44,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:44,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711954871] [2022-10-16 02:52:44,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711954871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:44,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:44,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:52:44,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666002547] [2022-10-16 02:52:44,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:44,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:52:44,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:44,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:52:44,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:52:44,783 INFO L87 Difference]: Start difference. First operand has 333 states, 330 states have (on average 1.803030303030303) internal successors, (595), 332 states have internal predecessors, (595), 0 states have call successors, (0), 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 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 02:52:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:44,868 INFO L93 Difference]: Finished difference Result 328 states and 587 transitions. [2022-10-16 02:52:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:52:44,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-10-16 02:52:44,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:44,901 INFO L225 Difference]: With dead ends: 328 [2022-10-16 02:52:44,901 INFO L226 Difference]: Without dead ends: 328 [2022-10-16 02:52:44,904 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 02:52:44,912 INFO L413 NwaCegarLoop]: 587 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, 587 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 02:52:44,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-16 02:52:45,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-10-16 02:52:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.7951070336391437) internal successors, (587), 327 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 02:52:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 587 transitions. [2022-10-16 02:52:45,027 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 587 transitions. Word has length 58 [2022-10-16 02:52:45,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:45,028 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 587 transitions. [2022-10-16 02:52:45,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 02:52:45,030 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 587 transitions. [2022-10-16 02:52:45,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 02:52:45,041 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:45,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:45,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:52:45,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:45,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:45,044 INFO L85 PathProgramCache]: Analyzing trace with hash -330350354, now seen corresponding path program 1 times [2022-10-16 02:52:45,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:45,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251010584] [2022-10-16 02:52:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:45,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:45,467 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 02:52:45,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:45,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251010584] [2022-10-16 02:52:45,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251010584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:45,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:45,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:52:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913221516] [2022-10-16 02:52:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:45,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:52:45,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:45,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:52:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:52:45,472 INFO L87 Difference]: Start difference. First operand 328 states and 587 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:52:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:45,578 INFO L93 Difference]: Finished difference Result 331 states and 589 transitions. [2022-10-16 02:52:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:52:45,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-10-16 02:52:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:45,582 INFO L225 Difference]: With dead ends: 331 [2022-10-16 02:52:45,582 INFO L226 Difference]: Without dead ends: 328 [2022-10-16 02:52:45,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:52:45,584 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 3 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:45,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2291 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:45,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-16 02:52:45,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-10-16 02:52:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.654434250764526) internal successors, (541), 327 states have internal predecessors, (541), 0 states have call successors, (0), 0 states 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 02:52:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 541 transitions. [2022-10-16 02:52:45,599 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 541 transitions. Word has length 77 [2022-10-16 02:52:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:45,599 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 541 transitions. [2022-10-16 02:52:45,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:52:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 541 transitions. [2022-10-16 02:52:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 02:52:45,602 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:45,602 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] [2022-10-16 02:52:45,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:52:45,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:45,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -550758364, now seen corresponding path program 1 times [2022-10-16 02:52:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:45,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965684308] [2022-10-16 02:52:45,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:45,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:45,879 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 02:52:45,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:45,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965684308] [2022-10-16 02:52:45,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965684308] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:45,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:45,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:45,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443261131] [2022-10-16 02:52:45,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:45,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:45,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:45,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:45,893 INFO L87 Difference]: Start difference. First operand 328 states and 541 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 02:52:45,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:45,941 INFO L93 Difference]: Finished difference Result 448 states and 738 transitions. [2022-10-16 02:52:45,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:45,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-10-16 02:52:45,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:45,945 INFO L225 Difference]: With dead ends: 448 [2022-10-16 02:52:45,945 INFO L226 Difference]: Without dead ends: 448 [2022-10-16 02:52:45,946 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 02:52:45,948 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 194 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1018 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 02:52:45,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1018 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:45,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-10-16 02:52:45,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 445. [2022-10-16 02:52:45,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 1.6576576576576576) internal successors, (736), 444 states have internal predecessors, (736), 0 states have call successors, (0), 0 states 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 02:52:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 736 transitions. [2022-10-16 02:52:45,962 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 736 transitions. Word has length 122 [2022-10-16 02:52:45,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:45,963 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 736 transitions. [2022-10-16 02:52:45,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 02:52:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 736 transitions. [2022-10-16 02:52:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-16 02:52:45,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:45,966 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] [2022-10-16 02:52:45,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:52:45,967 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:45,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1222100528, now seen corresponding path program 1 times [2022-10-16 02:52:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:45,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948685844] [2022-10-16 02:52:45,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:45,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:46,171 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 02:52:46,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:46,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948685844] [2022-10-16 02:52:46,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948685844] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:46,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:46,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:46,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444182156] [2022-10-16 02:52:46,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:46,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:46,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:46,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:46,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:46,178 INFO L87 Difference]: Start difference. First operand 445 states and 736 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states 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 02:52:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:46,213 INFO L93 Difference]: Finished difference Result 674 states and 1116 transitions. [2022-10-16 02:52:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:46,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-10-16 02:52:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:46,221 INFO L225 Difference]: With dead ends: 674 [2022-10-16 02:52:46,221 INFO L226 Difference]: Without dead ends: 674 [2022-10-16 02:52:46,222 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 02:52:46,232 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 195 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1031 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 02:52:46,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1031 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-10-16 02:52:46,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2022-10-16 02:52:46,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 1.663677130044843) internal successors, (1113), 669 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states 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 02:52:46,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1113 transitions. [2022-10-16 02:52:46,262 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1113 transitions. Word has length 125 [2022-10-16 02:52:46,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:46,263 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 1113 transitions. [2022-10-16 02:52:46,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states 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 02:52:46,264 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1113 transitions. [2022-10-16 02:52:46,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 02:52:46,266 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:46,267 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] [2022-10-16 02:52:46,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:52:46,267 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:46,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:46,268 INFO L85 PathProgramCache]: Analyzing trace with hash -116041787, now seen corresponding path program 1 times [2022-10-16 02:52:46,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:46,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142731422] [2022-10-16 02:52:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:46,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:46,499 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 02:52:46,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:46,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142731422] [2022-10-16 02:52:46,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142731422] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:46,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:46,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:46,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523389914] [2022-10-16 02:52:46,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:46,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:46,503 INFO L87 Difference]: Start difference. First operand 670 states and 1113 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 02:52:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:46,537 INFO L93 Difference]: Finished difference Result 1104 states and 1830 transitions. [2022-10-16 02:52:46,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2022-10-16 02:52:46,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:46,545 INFO L225 Difference]: With dead ends: 1104 [2022-10-16 02:52:46,545 INFO L226 Difference]: Without dead ends: 1104 [2022-10-16 02:52:46,545 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 02:52:46,547 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 188 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1032 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 02:52:46,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1032 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-10-16 02:52:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1098. [2022-10-16 02:52:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1097 states have (on average 1.6636280765724705) internal successors, (1825), 1097 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states 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 02:52:46,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1825 transitions. [2022-10-16 02:52:46,606 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1825 transitions. Word has length 128 [2022-10-16 02:52:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:46,607 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1825 transitions. [2022-10-16 02:52:46,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 02:52:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1825 transitions. [2022-10-16 02:52:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 02:52:46,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:46,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:46,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:52:46,610 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:46,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:46,611 INFO L85 PathProgramCache]: Analyzing trace with hash 655173041, now seen corresponding path program 1 times [2022-10-16 02:52:46,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:46,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619532502] [2022-10-16 02:52:46,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:46,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:46,816 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 02:52:46,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:46,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619532502] [2022-10-16 02:52:46,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619532502] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:46,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:46,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:46,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971638751] [2022-10-16 02:52:46,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:46,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:46,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:46,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:46,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:46,821 INFO L87 Difference]: Start difference. First operand 1098 states and 1825 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:46,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:46,884 INFO L93 Difference]: Finished difference Result 1920 states and 3174 transitions. [2022-10-16 02:52:46,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:46,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-10-16 02:52:46,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:46,895 INFO L225 Difference]: With dead ends: 1920 [2022-10-16 02:52:46,895 INFO L226 Difference]: Without dead ends: 1920 [2022-10-16 02:52:46,896 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 02:52:46,899 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 181 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1033 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 02:52:46,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1033 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-10-16 02:52:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1910. [2022-10-16 02:52:46,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1909 states have (on average 1.6579360921948665) internal successors, (3165), 1909 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states 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 02:52:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 3165 transitions. [2022-10-16 02:52:46,971 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 3165 transitions. Word has length 131 [2022-10-16 02:52:46,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:46,972 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 3165 transitions. [2022-10-16 02:52:46,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:46,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 3165 transitions. [2022-10-16 02:52:46,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-16 02:52:46,979 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:46,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:46,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:52:46,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:46,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash 455457894, now seen corresponding path program 1 times [2022-10-16 02:52:46,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:46,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734757508] [2022-10-16 02:52:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:46,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:47,308 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 02:52:47,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:47,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734757508] [2022-10-16 02:52:47,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734757508] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:47,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:47,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:52:47,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939722901] [2022-10-16 02:52:47,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:47,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:52:47,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:47,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:52:47,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:52:47,311 INFO L87 Difference]: Start difference. First operand 1910 states and 3165 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:47,667 INFO L93 Difference]: Finished difference Result 8192 states and 13668 transitions. [2022-10-16 02:52:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:52:47,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-10-16 02:52:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:47,715 INFO L225 Difference]: With dead ends: 8192 [2022-10-16 02:52:47,716 INFO L226 Difference]: Without dead ends: 8192 [2022-10-16 02:52:47,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:52:47,718 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 2412 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:47,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 3741 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:52:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2022-10-16 02:52:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 3510. [2022-10-16 02:52:47,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3509 states have (on average 1.6591621544599602) internal successors, (5822), 3509 states have internal predecessors, (5822), 0 states have call successors, (0), 0 states 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 02:52:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 5822 transitions. [2022-10-16 02:52:47,877 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 5822 transitions. Word has length 134 [2022-10-16 02:52:47,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:47,878 INFO L495 AbstractCegarLoop]: Abstraction has 3510 states and 5822 transitions. [2022-10-16 02:52:47,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:47,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 5822 transitions. [2022-10-16 02:52:47,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 02:52:47,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:47,882 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] [2022-10-16 02:52:47,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:52:47,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:47,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:47,883 INFO L85 PathProgramCache]: Analyzing trace with hash -860313711, now seen corresponding path program 1 times [2022-10-16 02:52:47,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:47,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963061662] [2022-10-16 02:52:47,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:48,116 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 02:52:48,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:48,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963061662] [2022-10-16 02:52:48,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963061662] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:48,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:48,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:48,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854046756] [2022-10-16 02:52:48,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:48,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:48,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:48,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:48,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:48,121 INFO L87 Difference]: Start difference. First operand 3510 states and 5822 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states 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 02:52:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:48,259 INFO L93 Difference]: Finished difference Result 6952 states and 11600 transitions. [2022-10-16 02:52:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-10-16 02:52:48,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:48,298 INFO L225 Difference]: With dead ends: 6952 [2022-10-16 02:52:48,299 INFO L226 Difference]: Without dead ends: 6952 [2022-10-16 02:52:48,299 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 02:52:48,300 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 655 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1762 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 02:52:48,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1762 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6952 states. [2022-10-16 02:52:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6952 to 5214. [2022-10-16 02:52:48,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 1.6621906771532706) internal successors, (8665), 5213 states have internal predecessors, (8665), 0 states have call successors, (0), 0 states 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 02:52:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 8665 transitions. [2022-10-16 02:52:48,492 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 8665 transitions. Word has length 135 [2022-10-16 02:52:48,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:48,492 INFO L495 AbstractCegarLoop]: Abstraction has 5214 states and 8665 transitions. [2022-10-16 02:52:48,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states 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 02:52:48,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 8665 transitions. [2022-10-16 02:52:48,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-16 02:52:48,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:48,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:48,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:52:48,499 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:48,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:48,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1469443837, now seen corresponding path program 1 times [2022-10-16 02:52:48,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:48,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751615657] [2022-10-16 02:52:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:48,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:48,711 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 02:52:48,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:48,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751615657] [2022-10-16 02:52:48,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751615657] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:48,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:48,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071691008] [2022-10-16 02:52:48,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:48,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:48,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:48,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:48,714 INFO L87 Difference]: Start difference. First operand 5214 states and 8665 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:48,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:48,884 INFO L93 Difference]: Finished difference Result 10278 states and 17107 transitions. [2022-10-16 02:52:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:48,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-10-16 02:52:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:48,957 INFO L225 Difference]: With dead ends: 10278 [2022-10-16 02:52:48,958 INFO L226 Difference]: Without dead ends: 10278 [2022-10-16 02:52:48,958 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 02:52:48,964 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 653 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:48,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1654 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:48,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10278 states. [2022-10-16 02:52:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10278 to 7722. [2022-10-16 02:52:49,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 1.6602771661701852) internal successors, (12819), 7721 states have internal predecessors, (12819), 0 states have call successors, (0), 0 states 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 02:52:49,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 12819 transitions. [2022-10-16 02:52:49,313 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 12819 transitions. Word has length 136 [2022-10-16 02:52:49,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:49,313 INFO L495 AbstractCegarLoop]: Abstraction has 7722 states and 12819 transitions. [2022-10-16 02:52:49,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 12819 transitions. [2022-10-16 02:52:49,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-10-16 02:52:49,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:49,320 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] [2022-10-16 02:52:49,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:52:49,320 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:49,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:49,321 INFO L85 PathProgramCache]: Analyzing trace with hash 846488136, now seen corresponding path program 1 times [2022-10-16 02:52:49,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:49,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585490347] [2022-10-16 02:52:49,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:49,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:49,531 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 02:52:49,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:49,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585490347] [2022-10-16 02:52:49,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585490347] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:49,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:49,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:49,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219756269] [2022-10-16 02:52:49,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:49,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:49,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:49,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:49,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:49,534 INFO L87 Difference]: Start difference. First operand 7722 states and 12819 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states 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 02:52:49,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:49,741 INFO L93 Difference]: Finished difference Result 15186 states and 25245 transitions. [2022-10-16 02:52:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:49,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2022-10-16 02:52:49,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:49,783 INFO L225 Difference]: With dead ends: 15186 [2022-10-16 02:52:49,784 INFO L226 Difference]: Without dead ends: 15186 [2022-10-16 02:52:49,784 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 02:52:49,785 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 651 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1765 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 02:52:49,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1765 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:49,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15186 states. [2022-10-16 02:52:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15186 to 11420. [2022-10-16 02:52:50,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11420 states, 11419 states have (on average 1.658201243541466) internal successors, (18935), 11419 states have internal predecessors, (18935), 0 states have call successors, (0), 0 states 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 02:52:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11420 states to 11420 states and 18935 transitions. [2022-10-16 02:52:50,128 INFO L78 Accepts]: Start accepts. Automaton has 11420 states and 18935 transitions. Word has length 137 [2022-10-16 02:52:50,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:50,128 INFO L495 AbstractCegarLoop]: Abstraction has 11420 states and 18935 transitions. [2022-10-16 02:52:50,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states 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 02:52:50,129 INFO L276 IsEmpty]: Start isEmpty. Operand 11420 states and 18935 transitions. [2022-10-16 02:52:50,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 02:52:50,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:50,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:50,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:52:50,136 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:50,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:50,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1116265068, now seen corresponding path program 1 times [2022-10-16 02:52:50,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:50,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568326120] [2022-10-16 02:52:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:50,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:50,344 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 02:52:50,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:50,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568326120] [2022-10-16 02:52:50,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568326120] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:50,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:50,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:50,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099953018] [2022-10-16 02:52:50,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:50,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:50,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:50,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:50,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:50,347 INFO L87 Difference]: Start difference. First operand 11420 states and 18935 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:50,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:50,528 INFO L93 Difference]: Finished difference Result 22280 states and 36989 transitions. [2022-10-16 02:52:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:50,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-10-16 02:52:50,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:50,586 INFO L225 Difference]: With dead ends: 22280 [2022-10-16 02:52:50,587 INFO L226 Difference]: Without dead ends: 22280 [2022-10-16 02:52:50,587 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 02:52:50,588 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 649 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:50,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1774 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:50,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22280 states. [2022-10-16 02:52:51,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22280 to 16802. [2022-10-16 02:52:51,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16802 states, 16801 states have (on average 1.656032379025058) internal successors, (27823), 16801 states have internal predecessors, (27823), 0 states have call successors, (0), 0 states 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 02:52:51,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16802 states to 16802 states and 27823 transitions. [2022-10-16 02:52:51,345 INFO L78 Accepts]: Start accepts. Automaton has 16802 states and 27823 transitions. Word has length 138 [2022-10-16 02:52:51,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:51,345 INFO L495 AbstractCegarLoop]: Abstraction has 16802 states and 27823 transitions. [2022-10-16 02:52:51,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:51,346 INFO L276 IsEmpty]: Start isEmpty. Operand 16802 states and 27823 transitions. [2022-10-16 02:52:51,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 02:52:51,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:51,357 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] [2022-10-16 02:52:51,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:52:51,357 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash -397139727, now seen corresponding path program 1 times [2022-10-16 02:52:51,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:51,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207499986] [2022-10-16 02:52:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:51,485 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 02:52:51,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:51,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207499986] [2022-10-16 02:52:51,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207499986] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:51,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:51,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:51,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650853309] [2022-10-16 02:52:51,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:51,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:51,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:51,488 INFO L87 Difference]: Start difference. First operand 16802 states and 27823 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:51,721 INFO L93 Difference]: Finished difference Result 26582 states and 43754 transitions. [2022-10-16 02:52:51,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:51,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-10-16 02:52:51,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:51,797 INFO L225 Difference]: With dead ends: 26582 [2022-10-16 02:52:51,798 INFO L226 Difference]: Without dead ends: 26582 [2022-10-16 02:52:51,798 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 02:52:51,799 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 180 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:51,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1081 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26582 states. [2022-10-16 02:52:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26582 to 26580. [2022-10-16 02:52:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26580 states, 26579 states have (on average 1.646149215546108) internal successors, (43753), 26579 states have internal predecessors, (43753), 0 states have call successors, (0), 0 states 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 02:52:52,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26580 states to 26580 states and 43753 transitions. [2022-10-16 02:52:52,518 INFO L78 Accepts]: Start accepts. Automaton has 26580 states and 43753 transitions. Word has length 138 [2022-10-16 02:52:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:52,519 INFO L495 AbstractCegarLoop]: Abstraction has 26580 states and 43753 transitions. [2022-10-16 02:52:52,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 26580 states and 43753 transitions. [2022-10-16 02:52:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 02:52:52,525 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:52,525 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] [2022-10-16 02:52:52,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:52:52,526 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:52,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:52,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1906561851, now seen corresponding path program 1 times [2022-10-16 02:52:52,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:52,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938032663] [2022-10-16 02:52:52,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:52,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:52:52,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:52,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938032663] [2022-10-16 02:52:52,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938032663] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:52,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:52,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:52,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719821144] [2022-10-16 02:52:52,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:52,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:52,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:52,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:52,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:52,839 INFO L87 Difference]: Start difference. First operand 26580 states and 43753 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:53,025 INFO L93 Difference]: Finished difference Result 40152 states and 65842 transitions. [2022-10-16 02:52:53,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:53,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-10-16 02:52:53,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:53,257 INFO L225 Difference]: With dead ends: 40152 [2022-10-16 02:52:53,258 INFO L226 Difference]: Without dead ends: 40152 [2022-10-16 02:52:53,259 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 02:52:53,260 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 187 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1126 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 02:52:53,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1126 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:53,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40152 states. [2022-10-16 02:52:54,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40152 to 40150. [2022-10-16 02:52:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40150 states, 40149 states have (on average 1.6399163117387732) internal successors, (65841), 40149 states have internal predecessors, (65841), 0 states have call successors, (0), 0 states 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 02:52:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40150 states to 40150 states and 65841 transitions. [2022-10-16 02:52:54,531 INFO L78 Accepts]: Start accepts. Automaton has 40150 states and 65841 transitions. Word has length 138 [2022-10-16 02:52:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:54,532 INFO L495 AbstractCegarLoop]: Abstraction has 40150 states and 65841 transitions. [2022-10-16 02:52:54,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:54,532 INFO L276 IsEmpty]: Start isEmpty. Operand 40150 states and 65841 transitions. [2022-10-16 02:52:54,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 02:52:54,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:54,536 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] [2022-10-16 02:52:54,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:52:54,537 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:54,537 INFO L85 PathProgramCache]: Analyzing trace with hash 968808881, now seen corresponding path program 1 times [2022-10-16 02:52:54,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:54,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821182251] [2022-10-16 02:52:54,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:54,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:54,811 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 02:52:54,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:54,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821182251] [2022-10-16 02:52:54,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821182251] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:54,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:54,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:54,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323140611] [2022-10-16 02:52:54,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:54,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:54,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:54,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:54,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:54,815 INFO L87 Difference]: Start difference. First operand 40150 states and 65841 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:55,218 INFO L93 Difference]: Finished difference Result 60584 states and 98792 transitions. [2022-10-16 02:52:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:55,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-10-16 02:52:55,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:55,417 INFO L225 Difference]: With dead ends: 60584 [2022-10-16 02:52:55,417 INFO L226 Difference]: Without dead ends: 60584 [2022-10-16 02:52:55,417 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 02:52:55,418 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 194 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1171 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 02:52:55,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:55,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60584 states. [2022-10-16 02:52:56,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60584 to 60582. [2022-10-16 02:52:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60582 states, 60581 states have (on average 1.6307258051204172) internal successors, (98791), 60581 states have internal predecessors, (98791), 0 states have call successors, (0), 0 states 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 02:52:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60582 states to 60582 states and 98791 transitions. [2022-10-16 02:52:57,315 INFO L78 Accepts]: Start accepts. Automaton has 60582 states and 98791 transitions. Word has length 138 [2022-10-16 02:52:57,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:57,315 INFO L495 AbstractCegarLoop]: Abstraction has 60582 states and 98791 transitions. [2022-10-16 02:52:57,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 60582 states and 98791 transitions. [2022-10-16 02:52:57,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 02:52:57,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:57,318 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] [2022-10-16 02:52:57,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:52:57,319 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:57,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:57,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1464104067, now seen corresponding path program 1 times [2022-10-16 02:52:57,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:57,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779453078] [2022-10-16 02:52:57,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:57,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:57,435 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 02:52:57,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:57,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779453078] [2022-10-16 02:52:57,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779453078] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:57,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:57,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:57,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240211607] [2022-10-16 02:52:57,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:57,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:57,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:57,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:57,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:57,438 INFO L87 Difference]: Start difference. First operand 60582 states and 98791 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:58,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:58,032 INFO L93 Difference]: Finished difference Result 91486 states and 148628 transitions. [2022-10-16 02:52:58,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:58,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-10-16 02:52:58,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:58,302 INFO L225 Difference]: With dead ends: 91486 [2022-10-16 02:52:58,302 INFO L226 Difference]: Without dead ends: 91486 [2022-10-16 02:52:58,303 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 02:52:58,303 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 201 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1208 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 02:52:58,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1208 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91486 states. [2022-10-16 02:53:00,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91486 to 91484. [2022-10-16 02:53:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91484 states, 91483 states have (on average 1.6246406436168468) internal successors, (148627), 91483 states have internal predecessors, (148627), 0 states have call successors, (0), 0 states 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 02:53:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91484 states to 91484 states and 148627 transitions. [2022-10-16 02:53:00,802 INFO L78 Accepts]: Start accepts. Automaton has 91484 states and 148627 transitions. Word has length 138 [2022-10-16 02:53:00,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:00,802 INFO L495 AbstractCegarLoop]: Abstraction has 91484 states and 148627 transitions. [2022-10-16 02:53:00,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:53:00,803 INFO L276 IsEmpty]: Start isEmpty. Operand 91484 states and 148627 transitions. [2022-10-16 02:53:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-16 02:53:00,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:00,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:53:00,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:53:00,805 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:00,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:00,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1205053460, now seen corresponding path program 1 times [2022-10-16 02:53:00,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:00,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538640086] [2022-10-16 02:53:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:00,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:01,206 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 02:53:01,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:01,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538640086] [2022-10-16 02:53:01,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538640086] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:01,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:01,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397372007] [2022-10-16 02:53:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:01,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:01,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:01,212 INFO L87 Difference]: Start difference. First operand 91484 states and 148627 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:01,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:01,977 INFO L93 Difference]: Finished difference Result 91486 states and 148003 transitions. [2022-10-16 02:53:01,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:01,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-10-16 02:53:01,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:02,211 INFO L225 Difference]: With dead ends: 91486 [2022-10-16 02:53:02,212 INFO L226 Difference]: Without dead ends: 91486 [2022-10-16 02:53:02,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:53:02,213 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 891 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:02,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 2041 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91486 states. [2022-10-16 02:53:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91486 to 91484. [2022-10-16 02:53:03,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91484 states, 91483 states have (on average 1.6178087732146955) internal successors, (148002), 91483 states have internal predecessors, (148002), 0 states have call successors, (0), 0 states 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 02:53:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91484 states to 91484 states and 148002 transitions. [2022-10-16 02:53:03,820 INFO L78 Accepts]: Start accepts. Automaton has 91484 states and 148002 transitions. Word has length 140 [2022-10-16 02:53:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:03,820 INFO L495 AbstractCegarLoop]: Abstraction has 91484 states and 148002 transitions. [2022-10-16 02:53:03,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:03,821 INFO L276 IsEmpty]: Start isEmpty. Operand 91484 states and 148002 transitions. [2022-10-16 02:53:03,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 02:53:03,823 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:03,823 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] [2022-10-16 02:53:03,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:53:03,824 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:03,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:03,824 INFO L85 PathProgramCache]: Analyzing trace with hash 836779979, now seen corresponding path program 1 times [2022-10-16 02:53:03,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:03,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028246979] [2022-10-16 02:53:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:03,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:04,684 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 02:53:04,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:04,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028246979] [2022-10-16 02:53:04,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028246979] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:04,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:04,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:04,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399235189] [2022-10-16 02:53:04,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:04,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:04,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:04,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:04,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:04,687 INFO L87 Difference]: Start difference. First operand 91484 states and 148002 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:05,855 INFO L93 Difference]: Finished difference Result 176252 states and 283560 transitions. [2022-10-16 02:53:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-10-16 02:53:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:06,160 INFO L225 Difference]: With dead ends: 176252 [2022-10-16 02:53:06,160 INFO L226 Difference]: Without dead ends: 176252 [2022-10-16 02:53:06,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:53:06,161 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 518 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:06,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2050 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176252 states. [2022-10-16 02:53:08,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176252 to 176250. [2022-10-16 02:53:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176250 states, 176249 states have (on average 1.6088545183235081) internal successors, (283559), 176249 states have internal predecessors, (283559), 0 states have call successors, (0), 0 states 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 02:53:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176250 states to 176250 states and 283559 transitions. [2022-10-16 02:53:09,845 INFO L78 Accepts]: Start accepts. Automaton has 176250 states and 283559 transitions. Word has length 143 [2022-10-16 02:53:09,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:09,845 INFO L495 AbstractCegarLoop]: Abstraction has 176250 states and 283559 transitions. [2022-10-16 02:53:09,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 176250 states and 283559 transitions. [2022-10-16 02:53:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-16 02:53:09,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:09,848 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] [2022-10-16 02:53:09,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:53:09,848 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:09,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:09,849 INFO L85 PathProgramCache]: Analyzing trace with hash -260969643, now seen corresponding path program 1 times [2022-10-16 02:53:09,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:09,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121573054] [2022-10-16 02:53:09,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:09,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:10,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:53:10,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:10,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121573054] [2022-10-16 02:53:10,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121573054] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:10,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:10,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:53:10,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717013273] [2022-10-16 02:53:10,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:10,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:53:10,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:10,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:53:10,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:53:10,805 INFO L87 Difference]: Start difference. First operand 176250 states and 283559 transitions. Second operand has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states 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 02:53:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:12,683 INFO L93 Difference]: Finished difference Result 339569 states and 540021 transitions. [2022-10-16 02:53:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:53:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-10-16 02:53:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:13,361 INFO L225 Difference]: With dead ends: 339569 [2022-10-16 02:53:13,361 INFO L226 Difference]: Without dead ends: 339569 [2022-10-16 02:53:13,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-16 02:53:13,362 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 1612 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:13,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 3205 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:53:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339569 states. [2022-10-16 02:53:17,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339569 to 182058. [2022-10-16 02:53:17,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182058 states, 182057 states have (on average 1.5892824774658485) internal successors, (289340), 182057 states have internal predecessors, (289340), 0 states have call successors, (0), 0 states 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 02:53:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182058 states to 182058 states and 289340 transitions. [2022-10-16 02:53:18,104 INFO L78 Accepts]: Start accepts. Automaton has 182058 states and 289340 transitions. Word has length 144 [2022-10-16 02:53:18,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:18,104 INFO L495 AbstractCegarLoop]: Abstraction has 182058 states and 289340 transitions. [2022-10-16 02:53:18,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states 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 02:53:18,105 INFO L276 IsEmpty]: Start isEmpty. Operand 182058 states and 289340 transitions. [2022-10-16 02:53:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 02:53:18,111 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:18,111 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:53:18,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:53:18,112 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:18,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:18,113 INFO L85 PathProgramCache]: Analyzing trace with hash 543151442, now seen corresponding path program 1 times [2022-10-16 02:53:18,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:18,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712187444] [2022-10-16 02:53:18,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:18,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 02:53:18,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:18,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712187444] [2022-10-16 02:53:18,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712187444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:18,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:18,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:18,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708459247] [2022-10-16 02:53:18,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:18,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:18,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:18,389 INFO L87 Difference]: Start difference. First operand 182058 states and 289340 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states 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 02:53:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:20,807 INFO L93 Difference]: Finished difference Result 417418 states and 664094 transitions. [2022-10-16 02:53:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:20,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 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 182 [2022-10-16 02:53:20,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:21,667 INFO L225 Difference]: With dead ends: 417418 [2022-10-16 02:53:21,668 INFO L226 Difference]: Without dead ends: 417418 [2022-10-16 02:53:21,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:53:21,669 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 1475 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:21,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 2659 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417418 states. [2022-10-16 02:53:27,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417418 to 292842. [2022-10-16 02:53:27,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292842 states, 292841 states have (on average 1.5872913970379832) internal successors, (464824), 292841 states have internal predecessors, (464824), 0 states have call successors, (0), 0 states 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 02:53:29,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292842 states to 292842 states and 464824 transitions. [2022-10-16 02:53:29,087 INFO L78 Accepts]: Start accepts. Automaton has 292842 states and 464824 transitions. Word has length 182 [2022-10-16 02:53:29,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:29,087 INFO L495 AbstractCegarLoop]: Abstraction has 292842 states and 464824 transitions. [2022-10-16 02:53:29,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states 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 02:53:29,088 INFO L276 IsEmpty]: Start isEmpty. Operand 292842 states and 464824 transitions. [2022-10-16 02:53:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 02:53:29,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:29,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:53:29,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:53:29,098 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:29,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:29,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1448114276, now seen corresponding path program 1 times [2022-10-16 02:53:29,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:29,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440672040] [2022-10-16 02:53:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:29,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:29,445 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 02:53:29,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:29,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440672040] [2022-10-16 02:53:29,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440672040] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:29,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:29,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:29,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408505456] [2022-10-16 02:53:29,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:29,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:29,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:29,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:29,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:29,448 INFO L87 Difference]: Start difference. First operand 292842 states and 464824 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 0 states 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 02:53:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:31,994 INFO L93 Difference]: Finished difference Result 449458 states and 715174 transitions. [2022-10-16 02:53:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:31,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 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 182 [2022-10-16 02:53:31,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:32,822 INFO L225 Difference]: With dead ends: 449458 [2022-10-16 02:53:32,822 INFO L226 Difference]: Without dead ends: 449458 [2022-10-16 02:53:32,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:53:32,824 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 1334 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:32,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 3102 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:33,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449458 states. [2022-10-16 02:53:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449458 to 396298. [2022-10-16 02:53:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396298 states, 396297 states have (on average 1.5879454045829264) internal successors, (629298), 396297 states have internal predecessors, (629298), 0 states have call successors, (0), 0 states 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 02:53:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396298 states to 396298 states and 629298 transitions. [2022-10-16 02:53:44,098 INFO L78 Accepts]: Start accepts. Automaton has 396298 states and 629298 transitions. Word has length 182 [2022-10-16 02:53:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:44,099 INFO L495 AbstractCegarLoop]: Abstraction has 396298 states and 629298 transitions. [2022-10-16 02:53:44,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 0 states 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 02:53:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 396298 states and 629298 transitions. [2022-10-16 02:53:44,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 02:53:44,104 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:44,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:53:44,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:53:44,105 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:44,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:44,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1909100050, now seen corresponding path program 1 times [2022-10-16 02:53:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:44,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112409579] [2022-10-16 02:53:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:44,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:53:44,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:44,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112409579] [2022-10-16 02:53:44,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112409579] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:44,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:44,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:44,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901644041] [2022-10-16 02:53:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:44,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:44,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:44,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:44,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:44,408 INFO L87 Difference]: Start difference. First operand 396298 states and 629298 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:47,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:47,394 INFO L93 Difference]: Finished difference Result 500754 states and 797106 transitions. [2022-10-16 02:53:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:47,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-10-16 02:53:47,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:49,311 INFO L225 Difference]: With dead ends: 500754 [2022-10-16 02:53:49,312 INFO L226 Difference]: Without dead ends: 500754 [2022-10-16 02:53:49,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:53:49,313 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 1401 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:49,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 2896 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:49,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500754 states. [2022-10-16 02:53:56,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500754 to 459354. [2022-10-16 02:53:57,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459354 states, 459353 states have (on average 1.589239647939602) internal successors, (730022), 459353 states have internal predecessors, (730022), 0 states have call successors, (0), 0 states 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 02:53:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459354 states to 459354 states and 730022 transitions. [2022-10-16 02:53:59,469 INFO L78 Accepts]: Start accepts. Automaton has 459354 states and 730022 transitions. Word has length 182 [2022-10-16 02:53:59,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:59,470 INFO L495 AbstractCegarLoop]: Abstraction has 459354 states and 730022 transitions. [2022-10-16 02:53:59,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:59,470 INFO L276 IsEmpty]: Start isEmpty. Operand 459354 states and 730022 transitions. [2022-10-16 02:53:59,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 02:53:59,487 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:59,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:53:59,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:53:59,489 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:59,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:59,489 INFO L85 PathProgramCache]: Analyzing trace with hash -523812898, now seen corresponding path program 1 times [2022-10-16 02:53:59,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:59,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169138651] [2022-10-16 02:53:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:59,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:53:59,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:59,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169138651] [2022-10-16 02:53:59,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169138651] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:59,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:59,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:53:59,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269964314] [2022-10-16 02:53:59,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:59,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:53:59,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:59,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:53:59,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:53:59,621 INFO L87 Difference]: Start difference. First operand 459354 states and 730022 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 02:54:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:54:03,942 INFO L93 Difference]: Finished difference Result 841097 states and 1337883 transitions. [2022-10-16 02:54:03,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:54:03,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 182 [2022-10-16 02:54:03,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:54:07,454 INFO L225 Difference]: With dead ends: 841097 [2022-10-16 02:54:07,454 INFO L226 Difference]: Without dead ends: 841097 [2022-10-16 02:54:07,454 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 02:54:07,456 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 169 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:54:07,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1035 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:54:08,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841097 states. [2022-10-16 02:54:22,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841097 to 840420. [2022-10-16 02:54:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840420 states, 840419 states have (on average 1.591119429713036) internal successors, (1337207), 840419 states have internal predecessors, (1337207), 0 states have call successors, (0), 0 states 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 02:54:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840420 states to 840420 states and 1337207 transitions. [2022-10-16 02:54:31,012 INFO L78 Accepts]: Start accepts. Automaton has 840420 states and 1337207 transitions. Word has length 182 [2022-10-16 02:54:31,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:54:31,012 INFO L495 AbstractCegarLoop]: Abstraction has 840420 states and 1337207 transitions. [2022-10-16 02:54:31,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 02:54:31,013 INFO L276 IsEmpty]: Start isEmpty. Operand 840420 states and 1337207 transitions. [2022-10-16 02:54:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-10-16 02:54:31,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:54:31,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:54:31,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:54:31,031 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:54:31,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:54:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1058848235, now seen corresponding path program 1 times [2022-10-16 02:54:31,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:54:31,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994004460] [2022-10-16 02:54:31,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:54:31,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:54:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:54:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:54:31,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:54:31,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994004460] [2022-10-16 02:54:31,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994004460] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:54:31,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:54:31,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:54:31,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787576947] [2022-10-16 02:54:31,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:54:31,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:54:31,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:54:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:54:31,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:54:31,846 INFO L87 Difference]: Start difference. First operand 840420 states and 1337207 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 02:54:41,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:54:41,379 INFO L93 Difference]: Finished difference Result 1658098 states and 2624237 transitions. [2022-10-16 02:54:41,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:54:41,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 183 [2022-10-16 02:54:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:54:47,846 INFO L225 Difference]: With dead ends: 1658098 [2022-10-16 02:54:47,846 INFO L226 Difference]: Without dead ends: 1658098 [2022-10-16 02:54:47,847 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 02:54:47,854 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 414 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:54:47,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 1331 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:54:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658098 states.