/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:33:06,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:33:06,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:33:06,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:33:06,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:33:06,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:33:06,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:33:06,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:33:06,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:33:06,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:33:06,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:33:06,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:33:06,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:33:06,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:33:06,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:33:06,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:33:06,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:33:06,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:33:06,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:33:06,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:33:06,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:33:06,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:33:06,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:33:06,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:33:06,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:33:06,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:33:06,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:33:06,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:33:06,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:33:06,656 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:33:06,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:33:06,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:33:06,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:33:06,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:33:06,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:33:06,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:33:06,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:33:06,664 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:33:06,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:33:06,666 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:33:06,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:33:06,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:33:06,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:33:06,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:33:06,667 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:33:06,667 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:33:06,667 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:33:06,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:33:06,667 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:33:06,668 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:33:06,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:33:06,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:33:06,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:33:06,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:33:06,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:33:06,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:33:06,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:33:06,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:33:06,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:33:06,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:33:07,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:33:07,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:33:07,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:33:07,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:33:07,193 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:33:07,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:33:07,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24a1e004/8e9a47b8249c4e9b953675760ef7216d/FLAG8d5b8c1e6 [2022-10-15 17:33:07,967 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:33:07,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:33:07,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24a1e004/8e9a47b8249c4e9b953675760ef7216d/FLAG8d5b8c1e6 [2022-10-15 17:33:08,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24a1e004/8e9a47b8249c4e9b953675760ef7216d [2022-10-15 17:33:08,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:33:08,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:33:08,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:33:08,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:33:08,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:33:08,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:08,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7127bd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08, skipping insertion in model container [2022-10-15 17:33:08,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:08,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:33:08,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:33:08,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4411,4424] [2022-10-15 17:33:08,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:33:08,837 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:33:08,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4411,4424] [2022-10-15 17:33:08,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:33:08,948 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:33:08,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08 WrapperNode [2022-10-15 17:33:08,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:33:08,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:33:08,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:33:08,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:33:08,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,106 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 329 [2022-10-15 17:33:09,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:33:09,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:33:09,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:33:09,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:33:09,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:33:09,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:33:09,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:33:09,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:33:09,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (1/1) ... [2022-10-15 17:33:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:33:09,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:33:09,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:33:09,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:33:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:33:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:33:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:33:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:33:09,516 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:33:09,519 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:33:10,286 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:33:10,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:33:10,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:33:10,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:33:10 BoogieIcfgContainer [2022-10-15 17:33:10,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:33:10,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:33:10,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:33:10,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:33:10,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:33:08" (1/3) ... [2022-10-15 17:33:10,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c011b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:33:10, skipping insertion in model container [2022-10-15 17:33:10,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:33:08" (2/3) ... [2022-10-15 17:33:10,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c011b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:33:10, skipping insertion in model container [2022-10-15 17:33:10,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:33:10" (3/3) ... [2022-10-15 17:33:10,317 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:33:10,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:33:10,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:33:10,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:33:10,435 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;@5ba1ff8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:33:10,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:33:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 85 states have (on average 1.6823529411764706) internal successors, (143), 87 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 17:33:10,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:10,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 17:33:10,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:10,464 INFO L85 PathProgramCache]: Analyzing trace with hash 936069, now seen corresponding path program 1 times [2022-10-15 17:33:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:10,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863161423] [2022-10-15 17:33:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:10,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:10,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:10,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:10,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863161423] [2022-10-15 17:33:10,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863161423] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:10,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:10,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:33:10,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360759258] [2022-10-15 17:33:10,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:10,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:10,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:10,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:10,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:10,900 INFO L87 Difference]: Start difference. First operand has 88 states, 85 states have (on average 1.6823529411764706) internal successors, (143), 87 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:10,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:10,952 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2022-10-15 17:33:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:10,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-10-15 17:33:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:10,970 INFO L225 Difference]: With dead ends: 87 [2022-10-15 17:33:10,970 INFO L226 Difference]: Without dead ends: 84 [2022-10-15 17:33:10,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:10,979 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 138 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:10,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 140 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-15 17:33:11,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-10-15 17:33:11,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 121 transitions. [2022-10-15 17:33:11,038 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 121 transitions. Word has length 4 [2022-10-15 17:33:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:11,039 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 121 transitions. [2022-10-15 17:33:11,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,040 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2022-10-15 17:33:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-15 17:33:11,042 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:11,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:11,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:33:11,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:11,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 716810707, now seen corresponding path program 1 times [2022-10-15 17:33:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:11,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516085231] [2022-10-15 17:33:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:11,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:11,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:11,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516085231] [2022-10-15 17:33:11,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516085231] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:11,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:11,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:11,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304678857] [2022-10-15 17:33:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:11,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:11,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:11,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:11,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:11,301 INFO L87 Difference]: Start difference. First operand 84 states and 121 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:11,393 INFO L93 Difference]: Finished difference Result 132 states and 195 transitions. [2022-10-15 17:33:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:11,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-10-15 17:33:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:11,401 INFO L225 Difference]: With dead ends: 132 [2022-10-15 17:33:11,401 INFO L226 Difference]: Without dead ends: 132 [2022-10-15 17:33:11,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:11,406 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 84 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:11,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:11,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-15 17:33:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2022-10-15 17:33:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.503875968992248) internal successors, (194), 129 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 194 transitions. [2022-10-15 17:33:11,449 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 194 transitions. Word has length 38 [2022-10-15 17:33:11,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:11,450 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 194 transitions. [2022-10-15 17:33:11,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 194 transitions. [2022-10-15 17:33:11,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 17:33:11,453 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:11,453 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] [2022-10-15 17:33:11,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:33:11,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:11,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:11,455 INFO L85 PathProgramCache]: Analyzing trace with hash -935293361, now seen corresponding path program 1 times [2022-10-15 17:33:11,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:11,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466165019] [2022-10-15 17:33:11,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:11,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:11,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:11,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466165019] [2022-10-15 17:33:11,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466165019] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:11,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:11,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:11,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986260372] [2022-10-15 17:33:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:11,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:11,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:11,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:11,707 INFO L87 Difference]: Start difference. First operand 130 states and 194 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:11,738 INFO L93 Difference]: Finished difference Result 208 states and 314 transitions. [2022-10-15 17:33:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:11,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-10-15 17:33:11,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:11,743 INFO L225 Difference]: With dead ends: 208 [2022-10-15 17:33:11,743 INFO L226 Difference]: Without dead ends: 208 [2022-10-15 17:33:11,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:11,746 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 79 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:11,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 235 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-10-15 17:33:11,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2022-10-15 17:33:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.526829268292683) internal successors, (313), 205 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 313 transitions. [2022-10-15 17:33:11,784 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 313 transitions. Word has length 39 [2022-10-15 17:33:11,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:11,788 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 313 transitions. [2022-10-15 17:33:11,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 313 transitions. [2022-10-15 17:33:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 17:33:11,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:11,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:11,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:33:11,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:11,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:11,797 INFO L85 PathProgramCache]: Analyzing trace with hash 830312666, now seen corresponding path program 1 times [2022-10-15 17:33:11,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:11,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919581888] [2022-10-15 17:33:11,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:11,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:12,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:12,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919581888] [2022-10-15 17:33:12,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919581888] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:12,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:12,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:33:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440830493] [2022-10-15 17:33:12,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:12,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:12,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:12,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:12,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:12,179 INFO L87 Difference]: Start difference. First operand 206 states and 313 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:12,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:12,312 INFO L93 Difference]: Finished difference Result 764 states and 1184 transitions. [2022-10-15 17:33:12,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:12,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-15 17:33:12,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:12,322 INFO L225 Difference]: With dead ends: 764 [2022-10-15 17:33:12,322 INFO L226 Difference]: Without dead ends: 764 [2022-10-15 17:33:12,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:33:12,325 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 501 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:12,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 676 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:33:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-10-15 17:33:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 390. [2022-10-15 17:33:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 389 states have (on average 1.5347043701799485) internal successors, (597), 389 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:12,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 597 transitions. [2022-10-15 17:33:12,439 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 597 transitions. Word has length 40 [2022-10-15 17:33:12,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:12,440 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 597 transitions. [2022-10-15 17:33:12,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:12,442 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 597 transitions. [2022-10-15 17:33:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 17:33:12,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:12,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:12,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:33:12,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:12,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:12,448 INFO L85 PathProgramCache]: Analyzing trace with hash -49567444, now seen corresponding path program 1 times [2022-10-15 17:33:12,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:12,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324934834] [2022-10-15 17:33:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:12,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:12,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324934834] [2022-10-15 17:33:12,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324934834] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:12,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:12,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:33:12,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213296356] [2022-10-15 17:33:12,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:12,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:12,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:12,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:12,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:12,842 INFO L87 Difference]: Start difference. First operand 390 states and 597 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:12,938 INFO L93 Difference]: Finished difference Result 978 states and 1495 transitions. [2022-10-15 17:33:12,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:12,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-15 17:33:12,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:12,946 INFO L225 Difference]: With dead ends: 978 [2022-10-15 17:33:12,947 INFO L226 Difference]: Without dead ends: 978 [2022-10-15 17:33:12,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:12,950 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 310 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:12,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 373 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:33:12,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-10-15 17:33:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 974. [2022-10-15 17:33:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 973 states have (on average 1.5344295991778005) internal successors, (1493), 973 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1493 transitions. [2022-10-15 17:33:12,991 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1493 transitions. Word has length 41 [2022-10-15 17:33:12,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:12,992 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1493 transitions. [2022-10-15 17:33:12,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:12,993 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1493 transitions. [2022-10-15 17:33:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 17:33:12,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:12,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:12,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:33:12,996 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:12,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1536012938, now seen corresponding path program 1 times [2022-10-15 17:33:12,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:12,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782573084] [2022-10-15 17:33:12,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:12,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:13,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:13,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782573084] [2022-10-15 17:33:13,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782573084] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:13,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:13,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:13,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377006828] [2022-10-15 17:33:13,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:13,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:13,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:13,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:13,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:13,098 INFO L87 Difference]: Start difference. First operand 974 states and 1493 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:13,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:13,128 INFO L93 Difference]: Finished difference Result 1536 states and 2310 transitions. [2022-10-15 17:33:13,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:13,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-15 17:33:13,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:13,141 INFO L225 Difference]: With dead ends: 1536 [2022-10-15 17:33:13,142 INFO L226 Difference]: Without dead ends: 1536 [2022-10-15 17:33:13,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:13,145 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 86 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:13,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 275 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:13,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-10-15 17:33:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1534. [2022-10-15 17:33:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1533 states have (on average 1.5061969993476843) internal successors, (2309), 1533 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2309 transitions. [2022-10-15 17:33:13,205 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2309 transitions. Word has length 42 [2022-10-15 17:33:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:13,206 INFO L495 AbstractCegarLoop]: Abstraction has 1534 states and 2309 transitions. [2022-10-15 17:33:13,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:13,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2309 transitions. [2022-10-15 17:33:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-15 17:33:13,208 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:13,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:13,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:33:13,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:13,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:13,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1650560821, now seen corresponding path program 1 times [2022-10-15 17:33:13,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:13,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302572829] [2022-10-15 17:33:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:13,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:13,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:13,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:13,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302572829] [2022-10-15 17:33:13,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302572829] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:13,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:13,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:33:13,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370430333] [2022-10-15 17:33:13,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:13,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:13,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:13,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:13,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:13,355 INFO L87 Difference]: Start difference. First operand 1534 states and 2309 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:13,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:13,574 INFO L93 Difference]: Finished difference Result 3048 states and 4558 transitions. [2022-10-15 17:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:13,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-15 17:33:13,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:13,597 INFO L225 Difference]: With dead ends: 3048 [2022-10-15 17:33:13,597 INFO L226 Difference]: Without dead ends: 3048 [2022-10-15 17:33:13,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:33:13,600 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 519 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:13,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 137 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:33:13,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2022-10-15 17:33:13,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 3046. [2022-10-15 17:33:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3045 states have (on average 1.4965517241379311) internal successors, (4557), 3045 states have internal predecessors, (4557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:13,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 4557 transitions. [2022-10-15 17:33:13,790 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 4557 transitions. Word has length 43 [2022-10-15 17:33:13,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:13,791 INFO L495 AbstractCegarLoop]: Abstraction has 3046 states and 4557 transitions. [2022-10-15 17:33:13,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 4557 transitions. [2022-10-15 17:33:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-15 17:33:13,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:13,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:13,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:33:13,794 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash 836148826, now seen corresponding path program 1 times [2022-10-15 17:33:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:13,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488634480] [2022-10-15 17:33:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:13,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:14,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:14,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488634480] [2022-10-15 17:33:14,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488634480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:14,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:14,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:33:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775199044] [2022-10-15 17:33:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:14,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:14,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:14,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:14,135 INFO L87 Difference]: Start difference. First operand 3046 states and 4557 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:14,232 INFO L93 Difference]: Finished difference Result 6262 states and 9189 transitions. [2022-10-15 17:33:14,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:33:14,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-15 17:33:14,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:14,276 INFO L225 Difference]: With dead ends: 6262 [2022-10-15 17:33:14,276 INFO L226 Difference]: Without dead ends: 6262 [2022-10-15 17:33:14,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:33:14,278 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 190 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:14,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 585 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2022-10-15 17:33:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 3238. [2022-10-15 17:33:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 3237 states have (on average 1.4670991658943466) internal successors, (4749), 3237 states have internal predecessors, (4749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4749 transitions. [2022-10-15 17:33:14,433 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4749 transitions. Word has length 43 [2022-10-15 17:33:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:14,434 INFO L495 AbstractCegarLoop]: Abstraction has 3238 states and 4749 transitions. [2022-10-15 17:33:14,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4749 transitions. [2022-10-15 17:33:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 17:33:14,436 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:14,436 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] [2022-10-15 17:33:14,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:33:14,437 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash 161382844, now seen corresponding path program 1 times [2022-10-15 17:33:14,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:14,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332210095] [2022-10-15 17:33:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:14,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:14,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:14,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332210095] [2022-10-15 17:33:14,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332210095] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:14,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:14,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648875733] [2022-10-15 17:33:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:14,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:14,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:14,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:14,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:14,631 INFO L87 Difference]: Start difference. First operand 3238 states and 4749 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:14,688 INFO L93 Difference]: Finished difference Result 3950 states and 5724 transitions. [2022-10-15 17:33:14,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:14,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-10-15 17:33:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:14,715 INFO L225 Difference]: With dead ends: 3950 [2022-10-15 17:33:14,715 INFO L226 Difference]: Without dead ends: 3950 [2022-10-15 17:33:14,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:14,717 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 66 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:14,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 214 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:14,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2022-10-15 17:33:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3928. [2022-10-15 17:33:14,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3928 states, 3927 states have (on average 1.452253628724217) internal successors, (5703), 3927 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 5703 transitions. [2022-10-15 17:33:14,904 INFO L78 Accepts]: Start accepts. Automaton has 3928 states and 5703 transitions. Word has length 44 [2022-10-15 17:33:14,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:14,905 INFO L495 AbstractCegarLoop]: Abstraction has 3928 states and 5703 transitions. [2022-10-15 17:33:14,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3928 states and 5703 transitions. [2022-10-15 17:33:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:33:14,909 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:14,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:14,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:33:14,911 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:14,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1477612707, now seen corresponding path program 1 times [2022-10-15 17:33:14,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:14,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467425544] [2022-10-15 17:33:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:15,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:15,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467425544] [2022-10-15 17:33:15,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467425544] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:15,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:15,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:15,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113427906] [2022-10-15 17:33:15,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:15,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:15,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:15,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:15,017 INFO L87 Difference]: Start difference. First operand 3928 states and 5703 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:15,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:15,081 INFO L93 Difference]: Finished difference Result 6251 states and 8950 transitions. [2022-10-15 17:33:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:15,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:33:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:15,127 INFO L225 Difference]: With dead ends: 6251 [2022-10-15 17:33:15,127 INFO L226 Difference]: Without dead ends: 6251 [2022-10-15 17:33:15,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:15,130 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 69 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:15,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 277 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6251 states. [2022-10-15 17:33:15,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6251 to 6249. [2022-10-15 17:33:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6249 states, 6248 states have (on average 1.4322983354673495) internal successors, (8949), 6248 states have internal predecessors, (8949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6249 states to 6249 states and 8949 transitions. [2022-10-15 17:33:15,354 INFO L78 Accepts]: Start accepts. Automaton has 6249 states and 8949 transitions. Word has length 63 [2022-10-15 17:33:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:15,355 INFO L495 AbstractCegarLoop]: Abstraction has 6249 states and 8949 transitions. [2022-10-15 17:33:15,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:15,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6249 states and 8949 transitions. [2022-10-15 17:33:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:33:15,361 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:15,362 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:15,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:33:15,362 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:15,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:15,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1700716252, now seen corresponding path program 1 times [2022-10-15 17:33:15,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:15,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222054948] [2022-10-15 17:33:15,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:15,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:16,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:16,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222054948] [2022-10-15 17:33:16,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222054948] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:33:16,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434481505] [2022-10-15 17:33:16,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:16,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:33:16,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:33:16,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:33:16,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:33:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:16,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:33:16,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:33:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:33:16,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:33:16,983 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:33:16,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434481505] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:33:16,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:33:16,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 14 [2022-10-15 17:33:16,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890144861] [2022-10-15 17:33:16,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:33:16,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 17:33:16,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:16,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 17:33:16,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:33:16,988 INFO L87 Difference]: Start difference. First operand 6249 states and 8949 transitions. Second operand has 14 states, 14 states have (on average 12.642857142857142) internal successors, (177), 14 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:23,897 INFO L93 Difference]: Finished difference Result 40161 states and 54720 transitions. [2022-10-15 17:33:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-15 17:33:23,898 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.642857142857142) internal successors, (177), 14 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:33:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:24,073 INFO L225 Difference]: With dead ends: 40161 [2022-10-15 17:33:24,074 INFO L226 Difference]: Without dead ends: 40161 [2022-10-15 17:33:24,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4264 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2025, Invalid=8687, Unknown=0, NotChecked=0, Total=10712 [2022-10-15 17:33:24,079 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 4854 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4854 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:24,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4854 Valid, 2408 Invalid, 2425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [141 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-15 17:33:24,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40161 states. [2022-10-15 17:33:24,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40161 to 21897. [2022-10-15 17:33:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21897 states, 21896 states have (on average 1.3965107782243331) internal successors, (30578), 21896 states have internal predecessors, (30578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21897 states to 21897 states and 30578 transitions. [2022-10-15 17:33:24,995 INFO L78 Accepts]: Start accepts. Automaton has 21897 states and 30578 transitions. Word has length 63 [2022-10-15 17:33:24,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:24,996 INFO L495 AbstractCegarLoop]: Abstraction has 21897 states and 30578 transitions. [2022-10-15 17:33:24,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.642857142857142) internal successors, (177), 14 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 21897 states and 30578 transitions. [2022-10-15 17:33:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:33:25,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:25,003 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:25,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:33:25,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 17:33:25,219 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:25,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:25,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1091273178, now seen corresponding path program 1 times [2022-10-15 17:33:25,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:25,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343462697] [2022-10-15 17:33:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:25,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 17:33:25,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:25,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343462697] [2022-10-15 17:33:25,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343462697] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:25,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:25,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:33:25,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926252921] [2022-10-15 17:33:25,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:25,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:25,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:25,606 INFO L87 Difference]: Start difference. First operand 21897 states and 30578 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:25,789 INFO L93 Difference]: Finished difference Result 30396 states and 42273 transitions. [2022-10-15 17:33:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:33:25,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:25,936 INFO L225 Difference]: With dead ends: 30396 [2022-10-15 17:33:25,936 INFO L226 Difference]: Without dead ends: 30396 [2022-10-15 17:33:25,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:33:25,938 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 353 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:25,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 559 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30396 states. [2022-10-15 17:33:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30396 to 28203. [2022-10-15 17:33:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28203 states, 28202 states have (on average 1.3897950499964542) internal successors, (39195), 28202 states have internal predecessors, (39195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:26,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28203 states to 28203 states and 39195 transitions. [2022-10-15 17:33:26,800 INFO L78 Accepts]: Start accepts. Automaton has 28203 states and 39195 transitions. Word has length 63 [2022-10-15 17:33:26,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:26,801 INFO L495 AbstractCegarLoop]: Abstraction has 28203 states and 39195 transitions. [2022-10-15 17:33:26,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:26,802 INFO L276 IsEmpty]: Start isEmpty. Operand 28203 states and 39195 transitions. [2022-10-15 17:33:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:33:26,807 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:26,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:26,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:33:26,808 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:26,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:26,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1327011341, now seen corresponding path program 1 times [2022-10-15 17:33:26,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:26,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227772909] [2022-10-15 17:33:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:26,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:27,049 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:27,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:27,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227772909] [2022-10-15 17:33:27,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227772909] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:27,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:27,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:27,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462668706] [2022-10-15 17:33:27,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:27,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:27,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:27,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:27,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:27,059 INFO L87 Difference]: Start difference. First operand 28203 states and 39195 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:27,364 INFO L93 Difference]: Finished difference Result 34524 states and 46971 transitions. [2022-10-15 17:33:27,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:27,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:33:27,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:27,458 INFO L225 Difference]: With dead ends: 34524 [2022-10-15 17:33:27,458 INFO L226 Difference]: Without dead ends: 29231 [2022-10-15 17:33:27,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:27,460 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 69 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:27,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 270 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29231 states. [2022-10-15 17:33:28,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29231 to 28310. [2022-10-15 17:33:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28310 states, 28309 states have (on average 1.3633120209120775) internal successors, (38594), 28309 states have internal predecessors, (38594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28310 states to 28310 states and 38594 transitions. [2022-10-15 17:33:28,354 INFO L78 Accepts]: Start accepts. Automaton has 28310 states and 38594 transitions. Word has length 63 [2022-10-15 17:33:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:28,355 INFO L495 AbstractCegarLoop]: Abstraction has 28310 states and 38594 transitions. [2022-10-15 17:33:28,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 28310 states and 38594 transitions. [2022-10-15 17:33:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:33:28,362 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:28,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:28,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:33:28,363 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:28,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:28,364 INFO L85 PathProgramCache]: Analyzing trace with hash 161019487, now seen corresponding path program 1 times [2022-10-15 17:33:28,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:28,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989313558] [2022-10-15 17:33:28,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:28,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:33:28,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:28,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989313558] [2022-10-15 17:33:28,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989313558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:28,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:28,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:33:28,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990055695] [2022-10-15 17:33:28,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:28,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:28,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:28,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:28,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:28,724 INFO L87 Difference]: Start difference. First operand 28310 states and 38594 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:29,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:29,063 INFO L93 Difference]: Finished difference Result 35032 states and 47928 transitions. [2022-10-15 17:33:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:29,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:33:29,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:29,148 INFO L225 Difference]: With dead ends: 35032 [2022-10-15 17:33:29,148 INFO L226 Difference]: Without dead ends: 35032 [2022-10-15 17:33:29,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:33:29,150 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 359 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:29,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 552 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:33:29,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35032 states. [2022-10-15 17:33:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35032 to 32818. [2022-10-15 17:33:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32818 states, 32817 states have (on average 1.365938385592833) internal successors, (44826), 32817 states have internal predecessors, (44826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:30,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32818 states to 32818 states and 44826 transitions. [2022-10-15 17:33:30,074 INFO L78 Accepts]: Start accepts. Automaton has 32818 states and 44826 transitions. Word has length 63 [2022-10-15 17:33:30,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:30,075 INFO L495 AbstractCegarLoop]: Abstraction has 32818 states and 44826 transitions. [2022-10-15 17:33:30,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:30,076 INFO L276 IsEmpty]: Start isEmpty. Operand 32818 states and 44826 transitions. [2022-10-15 17:33:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 17:33:30,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:30,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:30,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:33:30,090 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:30,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:30,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1004794437, now seen corresponding path program 1 times [2022-10-15 17:33:30,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:30,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710370152] [2022-10-15 17:33:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:30,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:30,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710370152] [2022-10-15 17:33:30,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710370152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:30,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:30,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:30,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116103103] [2022-10-15 17:33:30,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:30,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:30,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:30,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:30,420 INFO L87 Difference]: Start difference. First operand 32818 states and 44826 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:30,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:30,570 INFO L93 Difference]: Finished difference Result 32837 states and 44559 transitions. [2022-10-15 17:33:30,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:30,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-15 17:33:30,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:30,644 INFO L225 Difference]: With dead ends: 32837 [2022-10-15 17:33:30,644 INFO L226 Difference]: Without dead ends: 32837 [2022-10-15 17:33:30,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:30,645 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 64 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:30,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 256 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32837 states. [2022-10-15 17:33:31,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32837 to 32770. [2022-10-15 17:33:31,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32770 states, 32769 states have (on average 1.3576856175043486) internal successors, (44490), 32769 states have internal predecessors, (44490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32770 states to 32770 states and 44490 transitions. [2022-10-15 17:33:31,484 INFO L78 Accepts]: Start accepts. Automaton has 32770 states and 44490 transitions. Word has length 64 [2022-10-15 17:33:31,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:31,484 INFO L495 AbstractCegarLoop]: Abstraction has 32770 states and 44490 transitions. [2022-10-15 17:33:31,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:31,485 INFO L276 IsEmpty]: Start isEmpty. Operand 32770 states and 44490 transitions. [2022-10-15 17:33:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:33:31,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:31,498 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:33:31,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:33:31,499 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:31,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:31,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1607670003, now seen corresponding path program 1 times [2022-10-15 17:33:31,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:31,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110376387] [2022-10-15 17:33:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:31,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:31,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:33:31,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:31,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110376387] [2022-10-15 17:33:31,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110376387] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:31,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:31,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:33:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688571323] [2022-10-15 17:33:31,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:31,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:31,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:31,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:31,672 INFO L87 Difference]: Start difference. First operand 32770 states and 44490 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:32,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:32,049 INFO L93 Difference]: Finished difference Result 38967 states and 52898 transitions. [2022-10-15 17:33:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:32,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:33:32,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:32,114 INFO L225 Difference]: With dead ends: 38967 [2022-10-15 17:33:32,114 INFO L226 Difference]: Without dead ends: 38954 [2022-10-15 17:33:32,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:33:32,115 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 338 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:32,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 610 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:32,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38954 states. [2022-10-15 17:33:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38954 to 36727. [2022-10-15 17:33:32,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36727 states, 36726 states have (on average 1.3545444644121332) internal successors, (49747), 36726 states have internal predecessors, (49747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36727 states to 36727 states and 49747 transitions. [2022-10-15 17:33:33,082 INFO L78 Accepts]: Start accepts. Automaton has 36727 states and 49747 transitions. Word has length 65 [2022-10-15 17:33:33,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:33,082 INFO L495 AbstractCegarLoop]: Abstraction has 36727 states and 49747 transitions. [2022-10-15 17:33:33,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 36727 states and 49747 transitions. [2022-10-15 17:33:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 17:33:33,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:33,091 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:33,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:33:33,092 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1264098906, now seen corresponding path program 1 times [2022-10-15 17:33:33,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:33,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604412439] [2022-10-15 17:33:33,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:33,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:33,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:33,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604412439] [2022-10-15 17:33:33,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604412439] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:33,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:33,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:33,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011753517] [2022-10-15 17:33:33,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:33,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:33,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:33,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:33,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:33,184 INFO L87 Difference]: Start difference. First operand 36727 states and 49747 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:33,464 INFO L93 Difference]: Finished difference Result 53482 states and 71253 transitions. [2022-10-15 17:33:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:33,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-10-15 17:33:33,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:33,839 INFO L225 Difference]: With dead ends: 53482 [2022-10-15 17:33:33,839 INFO L226 Difference]: Without dead ends: 53482 [2022-10-15 17:33:33,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:33,842 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 66 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:33,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 262 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53482 states. [2022-10-15 17:33:34,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53482 to 53480. [2022-10-15 17:33:34,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53480 states, 53479 states have (on average 1.3323360571439256) internal successors, (71252), 53479 states have internal predecessors, (71252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53480 states to 53480 states and 71252 transitions. [2022-10-15 17:33:34,766 INFO L78 Accepts]: Start accepts. Automaton has 53480 states and 71252 transitions. Word has length 66 [2022-10-15 17:33:34,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:34,767 INFO L495 AbstractCegarLoop]: Abstraction has 53480 states and 71252 transitions. [2022-10-15 17:33:34,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 53480 states and 71252 transitions. [2022-10-15 17:33:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 17:33:34,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:34,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:34,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:33:34,778 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:34,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:34,779 INFO L85 PathProgramCache]: Analyzing trace with hash 742997775, now seen corresponding path program 1 times [2022-10-15 17:33:34,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:34,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691453891] [2022-10-15 17:33:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:34,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:33:34,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:34,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691453891] [2022-10-15 17:33:34,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691453891] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:34,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:34,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:33:34,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531197045] [2022-10-15 17:33:34,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:34,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:34,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:34,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:34,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:34,943 INFO L87 Difference]: Start difference. First operand 53480 states and 71252 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:35,697 INFO L93 Difference]: Finished difference Result 76283 states and 100290 transitions. [2022-10-15 17:33:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:35,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-10-15 17:33:35,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:35,980 INFO L225 Difference]: With dead ends: 76283 [2022-10-15 17:33:35,980 INFO L226 Difference]: Without dead ends: 76283 [2022-10-15 17:33:35,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:33:35,981 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 483 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:35,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 141 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:33:36,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76283 states. [2022-10-15 17:33:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76283 to 75739. [2022-10-15 17:33:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75739 states, 75738 states have (on average 1.3169875095724735) internal successors, (99746), 75738 states have internal predecessors, (99746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75739 states to 75739 states and 99746 transitions. [2022-10-15 17:33:37,812 INFO L78 Accepts]: Start accepts. Automaton has 75739 states and 99746 transitions. Word has length 68 [2022-10-15 17:33:37,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:37,812 INFO L495 AbstractCegarLoop]: Abstraction has 75739 states and 99746 transitions. [2022-10-15 17:33:37,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 75739 states and 99746 transitions. [2022-10-15 17:33:37,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 17:33:37,838 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:37,838 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:33:37,839 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2008828340, now seen corresponding path program 1 times [2022-10-15 17:33:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:37,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762258898] [2022-10-15 17:33:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:37,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:33:37,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:37,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762258898] [2022-10-15 17:33:37,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762258898] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:37,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:37,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:33:37,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550201303] [2022-10-15 17:33:37,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:37,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:33:37,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:33:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:33:37,982 INFO L87 Difference]: Start difference. First operand 75739 states and 99746 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:38,531 INFO L93 Difference]: Finished difference Result 96464 states and 125406 transitions. [2022-10-15 17:33:38,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:33:38,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-10-15 17:33:38,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:38,730 INFO L225 Difference]: With dead ends: 96464 [2022-10-15 17:33:38,731 INFO L226 Difference]: Without dead ends: 96464 [2022-10-15 17:33:38,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:33:38,732 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 465 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:38,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 149 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:33:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96464 states. [2022-10-15 17:33:40,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96464 to 96075. [2022-10-15 17:33:40,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96075 states, 96074 states have (on average 1.3011949122551367) internal successors, (125011), 96074 states have internal predecessors, (125011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:40,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96075 states to 96075 states and 125011 transitions. [2022-10-15 17:33:40,728 INFO L78 Accepts]: Start accepts. Automaton has 96075 states and 125011 transitions. Word has length 68 [2022-10-15 17:33:40,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:40,728 INFO L495 AbstractCegarLoop]: Abstraction has 96075 states and 125011 transitions. [2022-10-15 17:33:40,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:40,729 INFO L276 IsEmpty]: Start isEmpty. Operand 96075 states and 125011 transitions. [2022-10-15 17:33:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 17:33:40,738 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:40,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:33:40,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:33:40,738 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:40,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash -767181137, now seen corresponding path program 1 times [2022-10-15 17:33:40,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:40,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266040294] [2022-10-15 17:33:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:40,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:41,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:41,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266040294] [2022-10-15 17:33:41,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266040294] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:33:41,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083821994] [2022-10-15 17:33:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:41,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:33:41,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:33:41,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:33:41,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:33:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:41,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:33:41,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:33:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:41,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:33:41,900 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:41,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083821994] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:33:41,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:33:41,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-15 17:33:41,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872817074] [2022-10-15 17:33:41,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:33:41,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 17:33:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:41,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 17:33:41,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:33:41,905 INFO L87 Difference]: Start difference. First operand 96075 states and 125011 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:43,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:43,057 INFO L93 Difference]: Finished difference Result 171761 states and 221171 transitions. [2022-10-15 17:33:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:33:43,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-10-15 17:33:43,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:43,741 INFO L225 Difference]: With dead ends: 171761 [2022-10-15 17:33:43,741 INFO L226 Difference]: Without dead ends: 171761 [2022-10-15 17:33:43,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:33:43,743 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 1994 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:43,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 407 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:33:43,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171761 states. [2022-10-15 17:33:45,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171761 to 103215. [2022-10-15 17:33:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103215 states, 103214 states have (on average 1.3024589687445502) internal successors, (134432), 103214 states have internal predecessors, (134432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103215 states to 103215 states and 134432 transitions. [2022-10-15 17:33:45,751 INFO L78 Accepts]: Start accepts. Automaton has 103215 states and 134432 transitions. Word has length 68 [2022-10-15 17:33:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:45,751 INFO L495 AbstractCegarLoop]: Abstraction has 103215 states and 134432 transitions. [2022-10-15 17:33:45,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:45,751 INFO L276 IsEmpty]: Start isEmpty. Operand 103215 states and 134432 transitions. [2022-10-15 17:33:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:33:45,760 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:45,760 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:33:45,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 17:33:45,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-10-15 17:33:45,968 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:45,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:45,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1359557829, now seen corresponding path program 1 times [2022-10-15 17:33:45,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:45,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234502696] [2022-10-15 17:33:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:45,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:46,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:46,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234502696] [2022-10-15 17:33:46,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234502696] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:33:46,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031535004] [2022-10-15 17:33:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:46,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:33:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:33:46,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:33:46,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:33:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:46,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:33:46,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:33:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:46,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:33:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:46,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031535004] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:33:46,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:33:46,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-15 17:33:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845049728] [2022-10-15 17:33:46,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:33:46,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 17:33:46,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:46,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 17:33:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:33:46,644 INFO L87 Difference]: Start difference. First operand 103215 states and 134432 transitions. Second operand has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:48,227 INFO L93 Difference]: Finished difference Result 133238 states and 171193 transitions. [2022-10-15 17:33:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:33:48,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-15 17:33:48,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:48,495 INFO L225 Difference]: With dead ends: 133238 [2022-10-15 17:33:48,496 INFO L226 Difference]: Without dead ends: 133238 [2022-10-15 17:33:48,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:33:48,497 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 1854 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:48,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 224 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:33:48,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133238 states. [2022-10-15 17:33:50,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133238 to 103430. [2022-10-15 17:33:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103430 states, 103429 states have (on average 1.2950526448094828) internal successors, (133946), 103429 states have internal predecessors, (133946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:50,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103430 states to 103430 states and 133946 transitions. [2022-10-15 17:33:50,764 INFO L78 Accepts]: Start accepts. Automaton has 103430 states and 133946 transitions. Word has length 69 [2022-10-15 17:33:50,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:50,764 INFO L495 AbstractCegarLoop]: Abstraction has 103430 states and 133946 transitions. [2022-10-15 17:33:50,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:33:50,765 INFO L276 IsEmpty]: Start isEmpty. Operand 103430 states and 133946 transitions. [2022-10-15 17:33:50,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 17:33:50,772 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:50,773 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:33:50,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-15 17:33:50,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:33:50,974 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:50,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:50,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1494386851, now seen corresponding path program 1 times [2022-10-15 17:33:50,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:50,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81737146] [2022-10-15 17:33:50,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:50,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:51,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:51,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81737146] [2022-10-15 17:33:51,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81737146] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:33:51,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963223069] [2022-10-15 17:33:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:51,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:33:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:33:51,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:33:51,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:33:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:51,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:33:51,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:33:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:52,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:33:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:52,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963223069] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:33:52,202 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:33:52,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-15 17:33:52,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553765865] [2022-10-15 17:33:52,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:33:52,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 17:33:52,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:52,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 17:33:52,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:33:52,205 INFO L87 Difference]: Start difference. First operand 103430 states and 133946 transitions. Second operand has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 10 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) [2022-10-15 17:33:53,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:53,644 INFO L93 Difference]: Finished difference Result 195363 states and 249799 transitions. [2022-10-15 17:33:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:33:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 10 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 70 [2022-10-15 17:33:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.