/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.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:45:15,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:45:15,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:45:15,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 03:45:15,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 03:45:15,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 03:45:15,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 03:45:15,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 03:45:15,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 03:45:15,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 03:45:15,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 03:45:15,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 03:45:15,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:45:15,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:45:15,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:45:15,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:45:15,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:45:15,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:45:15,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:45:15,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:45:15,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:45:15,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:45:15,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:45:15,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:45:15,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 03:45:15,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 03:45:15,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 03:45:15,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 03:45:15,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 03:45:15,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 03:45:15,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 03:45:15,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 03:45:15,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 03:45:15,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 03:45:15,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 03:45:15,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 03:45:15,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 03:45:15,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 03:45:15,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:45:15,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:45:15,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:45:15,569 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 03:45:15,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:45:15,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:45:15,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:45:15,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:45:15,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:45:15,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:45:15,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:45:15,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:45:15,632 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:45:15,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:45:15,634 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:45:15,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:45:15,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:45:15,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:45:15,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:45:15,635 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:45:15,635 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:45:15,635 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:45:15,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:45:15,635 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:45:15,636 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:45:15,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:45:15,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:45:15,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:45:15,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:45:15,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:45:15,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:45:15,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:45:15,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:45:15,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:45:15,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:45:16,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:45:16,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:45:16,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:45:16,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:45:16,087 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:45:16,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 03:45:16,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dbd22657/39dfe27a0a46413eac76c5e29d5d4376/FLAG0f93d3cec [2022-10-16 03:45:16,922 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:45:16,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 03:45:16,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dbd22657/39dfe27a0a46413eac76c5e29d5d4376/FLAG0f93d3cec [2022-10-16 03:45:16,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dbd22657/39dfe27a0a46413eac76c5e29d5d4376 [2022-10-16 03:45:16,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:45:16,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:45:16,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:45:16,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:45:16,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:45:16,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:45:16" (1/1) ... [2022-10-16 03:45:16,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f42ed03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:16, skipping insertion in model container [2022-10-16 03:45:16,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:45:16" (1/1) ... [2022-10-16 03:45:16,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:45:17,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:45:17,230 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.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[4902,4915] [2022-10-16 03:45:17,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:45:17,271 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:45:17,323 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.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[4902,4915] [2022-10-16 03:45:17,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:45:17,399 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:45:17,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17 WrapperNode [2022-10-16 03:45:17,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:45:17,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:45:17,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:45:17,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:45:17,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,509 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 343 [2022-10-16 03:45:17,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:45:17,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:45:17,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:45:17,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:45:17,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:45:17,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:45:17,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:45:17,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:45:17,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (1/1) ... [2022-10-16 03:45:17,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:45:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:45:17,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 03:45:17,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 03:45:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:45:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:45:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:45:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:45:17,965 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:45:17,967 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:45:18,429 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:45:18,439 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:45:18,439 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:45:18,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:45:18 BoogieIcfgContainer [2022-10-16 03:45:18,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:45:18,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:45:18,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:45:18,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:45:18,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:45:16" (1/3) ... [2022-10-16 03:45:18,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781640b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:45:18, skipping insertion in model container [2022-10-16 03:45:18,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:45:17" (2/3) ... [2022-10-16 03:45:18,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781640b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:45:18, skipping insertion in model container [2022-10-16 03:45:18,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:45:18" (3/3) ... [2022-10-16 03:45:18,456 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 03:45:18,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:45:18,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 03:45:18,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:45:18,560 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;@10689a71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:45:18,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 03:45:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 77 states have (on average 1.7402597402597402) internal successors, (134), 79 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:18,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 03:45:18,573 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:18,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 03:45:18,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:18,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:18,581 INFO L85 PathProgramCache]: Analyzing trace with hash 935525, now seen corresponding path program 1 times [2022-10-16 03:45:18,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:18,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409814799] [2022-10-16 03:45:18,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:18,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:18,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:18,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409814799] [2022-10-16 03:45:18,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409814799] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:18,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:18,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:45:18,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981612673] [2022-10-16 03:45:18,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:18,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:45:18,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:18,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:45:18,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:18,972 INFO L87 Difference]: Start difference. First operand has 80 states, 77 states have (on average 1.7402597402597402) internal successors, (134), 79 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-10-16 03:45:19,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:19,011 INFO L93 Difference]: Finished difference Result 79 states and 132 transitions. [2022-10-16 03:45:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:45:19,014 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 [2022-10-16 03:45:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:19,026 INFO L225 Difference]: With dead ends: 79 [2022-10-16 03:45:19,026 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 03:45:19,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:19,033 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 129 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:19,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 131 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 03:45:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-10-16 03:45:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2022-10-16 03:45:19,079 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 4 [2022-10-16 03:45:19,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:19,080 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2022-10-16 03:45:19,080 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) [2022-10-16 03:45:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2022-10-16 03:45:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 03:45:19,083 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:19,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:19,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:45:19,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:19,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:19,085 INFO L85 PathProgramCache]: Analyzing trace with hash -347547403, now seen corresponding path program 1 times [2022-10-16 03:45:19,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:19,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295719768] [2022-10-16 03:45:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:19,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:19,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:19,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295719768] [2022-10-16 03:45:19,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295719768] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:19,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:19,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:45:19,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850462365] [2022-10-16 03:45:19,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:19,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:45:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:19,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:45:19,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:19,383 INFO L87 Difference]: Start difference. First operand 76 states and 105 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:19,419 INFO L93 Difference]: Finished difference Result 118 states and 170 transitions. [2022-10-16 03:45:19,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:45:19,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-10-16 03:45:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:19,422 INFO L225 Difference]: With dead ends: 118 [2022-10-16 03:45:19,423 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 03:45:19,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:19,425 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 69 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:19,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 241 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:19,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 03:45:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2022-10-16 03:45:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.4695652173913043) internal successors, (169), 115 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 169 transitions. [2022-10-16 03:45:19,449 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 169 transitions. Word has length 47 [2022-10-16 03:45:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:19,449 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 169 transitions. [2022-10-16 03:45:19,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 169 transitions. [2022-10-16 03:45:19,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 03:45:19,452 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:19,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:19,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:45:19,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:19,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:19,454 INFO L85 PathProgramCache]: Analyzing trace with hash -391185874, now seen corresponding path program 1 times [2022-10-16 03:45:19,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:19,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276483798] [2022-10-16 03:45:19,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:19,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:19,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:19,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276483798] [2022-10-16 03:45:19,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276483798] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:19,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:19,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:45:19,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990199210] [2022-10-16 03:45:19,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:19,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:45:19,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:19,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:45:19,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:19,661 INFO L87 Difference]: Start difference. First operand 116 states and 169 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:19,708 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-10-16 03:45:19,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:45:19,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-10-16 03:45:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:19,711 INFO L225 Difference]: With dead ends: 190 [2022-10-16 03:45:19,711 INFO L226 Difference]: Without dead ends: 190 [2022-10-16 03:45:19,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:19,713 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 64 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:19,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 237 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:19,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-10-16 03:45:19,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2022-10-16 03:45:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.5133689839572193) internal successors, (283), 187 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 283 transitions. [2022-10-16 03:45:19,736 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 283 transitions. Word has length 48 [2022-10-16 03:45:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:19,737 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 283 transitions. [2022-10-16 03:45:19,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 283 transitions. [2022-10-16 03:45:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 03:45:19,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:19,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:19,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:45:19,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:19,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:19,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2047730124, now seen corresponding path program 1 times [2022-10-16 03:45:19,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:19,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241975668] [2022-10-16 03:45:19,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:19,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:19,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:19,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241975668] [2022-10-16 03:45:19,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241975668] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:19,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:19,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:45:19,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017827679] [2022-10-16 03:45:19,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:19,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:45:19,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:19,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:45:19,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:19,894 INFO L87 Difference]: Start difference. First operand 188 states and 283 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:19,936 INFO L93 Difference]: Finished difference Result 318 states and 484 transitions. [2022-10-16 03:45:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:45:19,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2022-10-16 03:45:19,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:19,940 INFO L225 Difference]: With dead ends: 318 [2022-10-16 03:45:19,940 INFO L226 Difference]: Without dead ends: 318 [2022-10-16 03:45:19,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:19,946 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 59 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:19,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 233 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:19,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-10-16 03:45:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 316. [2022-10-16 03:45:19,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.5333333333333334) internal successors, (483), 315 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 483 transitions. [2022-10-16 03:45:19,991 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 483 transitions. Word has length 49 [2022-10-16 03:45:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:19,992 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 483 transitions. [2022-10-16 03:45:19,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:19,992 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 483 transitions. [2022-10-16 03:45:19,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 03:45:19,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:19,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:19,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:45:19,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:19,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash -415311335, now seen corresponding path program 1 times [2022-10-16 03:45:19,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:19,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872393681] [2022-10-16 03:45:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:19,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:20,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:20,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872393681] [2022-10-16 03:45:20,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872393681] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:20,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:20,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:45:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303299436] [2022-10-16 03:45:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:20,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:45:20,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:20,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:45:20,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:20,094 INFO L87 Difference]: Start difference. First operand 316 states and 483 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:20,114 INFO L93 Difference]: Finished difference Result 542 states and 828 transitions. [2022-10-16 03:45:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:45:20,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-10-16 03:45:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:20,118 INFO L225 Difference]: With dead ends: 542 [2022-10-16 03:45:20,118 INFO L226 Difference]: Without dead ends: 542 [2022-10-16 03:45:20,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:20,124 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 54 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:20,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 229 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-10-16 03:45:20,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 540. [2022-10-16 03:45:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 1.5343228200371057) internal successors, (827), 539 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 827 transitions. [2022-10-16 03:45:20,150 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 827 transitions. Word has length 50 [2022-10-16 03:45:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:20,150 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 827 transitions. [2022-10-16 03:45:20,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,151 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 827 transitions. [2022-10-16 03:45:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 03:45:20,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:20,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:20,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:45:20,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:20,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash -103942672, now seen corresponding path program 1 times [2022-10-16 03:45:20,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:20,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724804286] [2022-10-16 03:45:20,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:20,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:20,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:20,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724804286] [2022-10-16 03:45:20,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724804286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:20,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:20,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:45:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065930766] [2022-10-16 03:45:20,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:20,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:45:20,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:20,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:45:20,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:45:20,319 INFO L87 Difference]: Start difference. First operand 540 states and 827 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:20,506 INFO L93 Difference]: Finished difference Result 4138 states and 6306 transitions. [2022-10-16 03:45:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 03:45:20,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 03:45:20,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:20,529 INFO L225 Difference]: With dead ends: 4138 [2022-10-16 03:45:20,529 INFO L226 Difference]: Without dead ends: 4138 [2022-10-16 03:45:20,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 03:45:20,531 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 784 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:20,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 993 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:45:20,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2022-10-16 03:45:20,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 1052. [2022-10-16 03:45:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.5176022835394862) internal successors, (1595), 1051 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1595 transitions. [2022-10-16 03:45:20,622 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1595 transitions. Word has length 51 [2022-10-16 03:45:20,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:20,623 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1595 transitions. [2022-10-16 03:45:20,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1595 transitions. [2022-10-16 03:45:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 03:45:20,625 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:20,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:20,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:45:20,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2026482100, now seen corresponding path program 1 times [2022-10-16 03:45:20,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:20,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256932269] [2022-10-16 03:45:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:20,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:20,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:20,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256932269] [2022-10-16 03:45:20,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256932269] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:20,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:20,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:45:20,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739598953] [2022-10-16 03:45:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:20,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:45:20,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:45:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:20,736 INFO L87 Difference]: Start difference. First operand 1052 states and 1595 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:20,763 INFO L93 Difference]: Finished difference Result 1544 states and 2318 transitions. [2022-10-16 03:45:20,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:45:20,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-10-16 03:45:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:20,772 INFO L225 Difference]: With dead ends: 1544 [2022-10-16 03:45:20,773 INFO L226 Difference]: Without dead ends: 1544 [2022-10-16 03:45:20,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:20,775 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 45 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 201 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 [2022-10-16 03:45:20,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 201 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:20,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-10-16 03:45:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1542. [2022-10-16 03:45:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 1.5035691109669047) internal successors, (2317), 1541 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2317 transitions. [2022-10-16 03:45:20,820 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2317 transitions. Word has length 53 [2022-10-16 03:45:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:20,821 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 2317 transitions. [2022-10-16 03:45:20,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2317 transitions. [2022-10-16 03:45:20,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 03:45:20,823 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:20,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:20,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:45:20,823 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2005479445, now seen corresponding path program 1 times [2022-10-16 03:45:20,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:20,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033553603] [2022-10-16 03:45:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:20,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:21,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:21,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033553603] [2022-10-16 03:45:21,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033553603] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:21,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:21,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:45:21,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093326270] [2022-10-16 03:45:21,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:21,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:45:21,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:21,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:45:21,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:45:21,131 INFO L87 Difference]: Start difference. First operand 1542 states and 2317 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:21,263 INFO L93 Difference]: Finished difference Result 1544 states and 2294 transitions. [2022-10-16 03:45:21,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:45:21,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-10-16 03:45:21,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:21,272 INFO L225 Difference]: With dead ends: 1544 [2022-10-16 03:45:21,272 INFO L226 Difference]: Without dead ends: 1544 [2022-10-16 03:45:21,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:45:21,274 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 160 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:21,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 401 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:45:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-10-16 03:45:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1542. [2022-10-16 03:45:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 1.4879948085658663) internal successors, (2293), 1541 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2293 transitions. [2022-10-16 03:45:21,325 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2293 transitions. Word has length 53 [2022-10-16 03:45:21,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:21,325 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 2293 transitions. [2022-10-16 03:45:21,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:21,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2293 transitions. [2022-10-16 03:45:21,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:45:21,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:21,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:21,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:45:21,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:21,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2042230043, now seen corresponding path program 1 times [2022-10-16 03:45:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:21,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806302201] [2022-10-16 03:45:21,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:21,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:21,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:21,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806302201] [2022-10-16 03:45:21,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806302201] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:21,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:21,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:45:21,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075331294] [2022-10-16 03:45:21,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:21,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:45:21,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:21,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:45:21,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:45:21,459 INFO L87 Difference]: Start difference. First operand 1542 states and 2293 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:21,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:21,597 INFO L93 Difference]: Finished difference Result 2568 states and 3814 transitions. [2022-10-16 03:45:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:45:21,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-10-16 03:45:21,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:21,611 INFO L225 Difference]: With dead ends: 2568 [2022-10-16 03:45:21,611 INFO L226 Difference]: Without dead ends: 2568 [2022-10-16 03:45:21,611 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 [2022-10-16 03:45:21,614 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 428 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:21,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 109 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:45:21,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-10-16 03:45:21,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2566. [2022-10-16 03:45:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.4865497076023393) internal successors, (3813), 2565 states have internal predecessors, (3813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3813 transitions. [2022-10-16 03:45:21,688 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3813 transitions. Word has length 54 [2022-10-16 03:45:21,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:21,689 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 3813 transitions. [2022-10-16 03:45:21,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:21,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3813 transitions. [2022-10-16 03:45:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:45:21,690 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:21,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:21,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:45:21,691 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:21,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:21,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1489873546, now seen corresponding path program 1 times [2022-10-16 03:45:21,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:21,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598038070] [2022-10-16 03:45:21,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:21,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:21,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:21,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:21,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598038070] [2022-10-16 03:45:21,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598038070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:21,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:21,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:45:21,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482454499] [2022-10-16 03:45:21,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:21,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:45:21,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:21,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:45:21,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:45:21,846 INFO L87 Difference]: Start difference. First operand 2566 states and 3813 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:21,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:21,928 INFO L93 Difference]: Finished difference Result 2566 states and 3773 transitions. [2022-10-16 03:45:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:45:21,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-10-16 03:45:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:21,941 INFO L225 Difference]: With dead ends: 2566 [2022-10-16 03:45:21,942 INFO L226 Difference]: Without dead ends: 2566 [2022-10-16 03:45:21,942 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 [2022-10-16 03:45:21,943 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 260 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:21,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:45:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2022-10-16 03:45:21,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2566. [2022-10-16 03:45:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.470955165692008) internal successors, (3773), 2565 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3773 transitions. [2022-10-16 03:45:22,013 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3773 transitions. Word has length 54 [2022-10-16 03:45:22,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:22,013 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 3773 transitions. [2022-10-16 03:45:22,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3773 transitions. [2022-10-16 03:45:22,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:45:22,014 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:22,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:22,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:45:22,015 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1617958853, now seen corresponding path program 1 times [2022-10-16 03:45:22,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:22,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428188537] [2022-10-16 03:45:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:22,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:22,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:22,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428188537] [2022-10-16 03:45:22,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428188537] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:22,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:22,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:45:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176724166] [2022-10-16 03:45:22,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:22,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:45:22,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:22,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:45:22,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:45:22,162 INFO L87 Difference]: Start difference. First operand 2566 states and 3773 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:22,243 INFO L93 Difference]: Finished difference Result 2566 states and 3733 transitions. [2022-10-16 03:45:22,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:45:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-10-16 03:45:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:22,256 INFO L225 Difference]: With dead ends: 2566 [2022-10-16 03:45:22,257 INFO L226 Difference]: Without dead ends: 2566 [2022-10-16 03:45:22,257 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 [2022-10-16 03:45:22,258 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 244 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:22,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 83 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:45:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2022-10-16 03:45:22,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2566. [2022-10-16 03:45:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.4553606237816765) internal successors, (3733), 2565 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3733 transitions. [2022-10-16 03:45:22,336 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3733 transitions. Word has length 54 [2022-10-16 03:45:22,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:22,337 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 3733 transitions. [2022-10-16 03:45:22,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3733 transitions. [2022-10-16 03:45:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:45:22,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:22,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:22,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:45:22,341 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:22,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1811476054, now seen corresponding path program 1 times [2022-10-16 03:45:22,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:22,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142181811] [2022-10-16 03:45:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:22,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:22,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142181811] [2022-10-16 03:45:22,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142181811] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:22,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:22,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:45:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146304446] [2022-10-16 03:45:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:22,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:45:22,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:22,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:45:22,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:45:22,548 INFO L87 Difference]: Start difference. First operand 2566 states and 3733 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:22,615 INFO L93 Difference]: Finished difference Result 4886 states and 7004 transitions. [2022-10-16 03:45:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:45:22,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-10-16 03:45:22,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:22,639 INFO L225 Difference]: With dead ends: 4886 [2022-10-16 03:45:22,639 INFO L226 Difference]: Without dead ends: 4886 [2022-10-16 03:45:22,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:45:22,640 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 138 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 463 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 [2022-10-16 03:45:22,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 463 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4886 states. [2022-10-16 03:45:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4886 to 2694. [2022-10-16 03:45:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2693 states have (on average 1.4307463795024136) internal successors, (3853), 2693 states have internal predecessors, (3853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 3853 transitions. [2022-10-16 03:45:22,760 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 3853 transitions. Word has length 54 [2022-10-16 03:45:22,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:22,761 INFO L495 AbstractCegarLoop]: Abstraction has 2694 states and 3853 transitions. [2022-10-16 03:45:22,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 3853 transitions. [2022-10-16 03:45:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 03:45:22,769 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:22,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:22,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:45:22,769 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:22,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1690284398, now seen corresponding path program 1 times [2022-10-16 03:45:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:22,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496269202] [2022-10-16 03:45:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:45:22,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:22,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496269202] [2022-10-16 03:45:22,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496269202] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:22,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:22,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:45:22,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457814767] [2022-10-16 03:45:22,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:22,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:45:22,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:22,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:45:22,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:45:22,945 INFO L87 Difference]: Start difference. First operand 2694 states and 3853 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:23,081 INFO L93 Difference]: Finished difference Result 11542 states and 16481 transitions. [2022-10-16 03:45:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:45:23,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 76 [2022-10-16 03:45:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:23,138 INFO L225 Difference]: With dead ends: 11542 [2022-10-16 03:45:23,139 INFO L226 Difference]: Without dead ends: 11542 [2022-10-16 03:45:23,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:45:23,140 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 479 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:23,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 524 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:45:23,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11542 states. [2022-10-16 03:45:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11542 to 5118. [2022-10-16 03:45:23,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 5117 states have (on average 1.426812585499316) internal successors, (7301), 5117 states have internal predecessors, (7301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:23,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 7301 transitions. [2022-10-16 03:45:23,367 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 7301 transitions. Word has length 76 [2022-10-16 03:45:23,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:23,367 INFO L495 AbstractCegarLoop]: Abstraction has 5118 states and 7301 transitions. [2022-10-16 03:45:23,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:23,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 7301 transitions. [2022-10-16 03:45:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 03:45:23,371 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:23,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:23,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:45:23,371 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash -34257664, now seen corresponding path program 1 times [2022-10-16 03:45:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:23,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242784010] [2022-10-16 03:45:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:23,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 03:45:23,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:23,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242784010] [2022-10-16 03:45:23,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242784010] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:23,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:23,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:45:23,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073413298] [2022-10-16 03:45:23,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:23,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:45:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:23,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:45:23,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:45:23,555 INFO L87 Difference]: Start difference. First operand 5118 states and 7301 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:23,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:23,689 INFO L93 Difference]: Finished difference Result 13718 states and 19593 transitions. [2022-10-16 03:45:23,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:45:23,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 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 76 [2022-10-16 03:45:23,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:23,719 INFO L225 Difference]: With dead ends: 13718 [2022-10-16 03:45:23,720 INFO L226 Difference]: Without dead ends: 13718 [2022-10-16 03:45:23,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:45:23,721 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 493 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:23,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 588 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13718 states. [2022-10-16 03:45:23,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13718 to 8870. [2022-10-16 03:45:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8870 states, 8869 states have (on average 1.4221445484271056) internal successors, (12613), 8869 states have internal predecessors, (12613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8870 states to 8870 states and 12613 transitions. [2022-10-16 03:45:24,006 INFO L78 Accepts]: Start accepts. Automaton has 8870 states and 12613 transitions. Word has length 76 [2022-10-16 03:45:24,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:24,009 INFO L495 AbstractCegarLoop]: Abstraction has 8870 states and 12613 transitions. [2022-10-16 03:45:24,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand 8870 states and 12613 transitions. [2022-10-16 03:45:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 03:45:24,014 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:24,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:24,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:45:24,015 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:24,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:24,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1119688442, now seen corresponding path program 1 times [2022-10-16 03:45:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:24,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860475409] [2022-10-16 03:45:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:24,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 03:45:24,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:24,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860475409] [2022-10-16 03:45:24,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860475409] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:24,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:24,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:45:24,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936994345] [2022-10-16 03:45:24,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:24,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:45:24,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:24,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:45:24,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:45:24,240 INFO L87 Difference]: Start difference. First operand 8870 states and 12613 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:24,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:24,376 INFO L93 Difference]: Finished difference Result 16382 states and 23377 transitions. [2022-10-16 03:45:24,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:45:24,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 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 76 [2022-10-16 03:45:24,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:24,411 INFO L225 Difference]: With dead ends: 16382 [2022-10-16 03:45:24,411 INFO L226 Difference]: Without dead ends: 16382 [2022-10-16 03:45:24,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:45:24,414 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 443 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:24,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 631 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:24,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16382 states. [2022-10-16 03:45:24,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16382 to 11534. [2022-10-16 03:45:24,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11534 states, 11533 states have (on average 1.4217462932454694) internal successors, (16397), 11533 states have internal predecessors, (16397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11534 states to 11534 states and 16397 transitions. [2022-10-16 03:45:24,749 INFO L78 Accepts]: Start accepts. Automaton has 11534 states and 16397 transitions. Word has length 76 [2022-10-16 03:45:24,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:24,750 INFO L495 AbstractCegarLoop]: Abstraction has 11534 states and 16397 transitions. [2022-10-16 03:45:24,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 11534 states and 16397 transitions. [2022-10-16 03:45:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 03:45:24,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:24,753 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:24,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 03:45:24,754 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:24,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:24,754 INFO L85 PathProgramCache]: Analyzing trace with hash 261787764, now seen corresponding path program 1 times [2022-10-16 03:45:24,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:24,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667163621] [2022-10-16 03:45:24,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:24,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 03:45:24,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:24,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667163621] [2022-10-16 03:45:24,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667163621] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:24,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:24,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:45:24,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211090428] [2022-10-16 03:45:24,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:24,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:45:24,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:45:24,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:45:24,996 INFO L87 Difference]: Start difference. First operand 11534 states and 16397 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:25,152 INFO L93 Difference]: Finished difference Result 19046 states and 27161 transitions. [2022-10-16 03:45:25,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:45:25,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 76 [2022-10-16 03:45:25,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:25,210 INFO L225 Difference]: With dead ends: 19046 [2022-10-16 03:45:25,210 INFO L226 Difference]: Without dead ends: 19046 [2022-10-16 03:45:25,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:45:25,212 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 479 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:25,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 626 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:45:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19046 states. [2022-10-16 03:45:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19046 to 14198. [2022-10-16 03:45:25,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14198 states, 14197 states have (on average 1.4214974994717193) internal successors, (20181), 14197 states have internal predecessors, (20181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:25,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14198 states to 14198 states and 20181 transitions. [2022-10-16 03:45:25,605 INFO L78 Accepts]: Start accepts. Automaton has 14198 states and 20181 transitions. Word has length 76 [2022-10-16 03:45:25,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:25,605 INFO L495 AbstractCegarLoop]: Abstraction has 14198 states and 20181 transitions. [2022-10-16 03:45:25,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:25,606 INFO L276 IsEmpty]: Start isEmpty. Operand 14198 states and 20181 transitions. [2022-10-16 03:45:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 03:45:25,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:25,610 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:45:25,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 03:45:25,610 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:25,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1414120063, now seen corresponding path program 1 times [2022-10-16 03:45:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:25,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210877156] [2022-10-16 03:45:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:26,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210877156] [2022-10-16 03:45:26,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210877156] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:45:26,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074561140] [2022-10-16 03:45:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:26,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:45:26,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:45:26,428 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) [2022-10-16 03:45:26,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 03:45:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:26,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 03:45:26,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:45:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:26,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:45:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:27,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074561140] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:45:27,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:45:27,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 22 [2022-10-16 03:45:27,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424103161] [2022-10-16 03:45:27,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:45:27,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 03:45:27,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 03:45:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-10-16 03:45:27,342 INFO L87 Difference]: Start difference. First operand 14198 states and 20181 transitions. Second operand has 22 states, 22 states have (on average 10.045454545454545) internal successors, (221), 22 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:54,703 INFO L93 Difference]: Finished difference Result 343105 states and 465479 transitions. [2022-10-16 03:45:54,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 410 states. [2022-10-16 03:45:54,704 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.045454545454545) internal successors, (221), 22 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-16 03:45:54,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:55,899 INFO L225 Difference]: With dead ends: 343105 [2022-10-16 03:45:55,899 INFO L226 Difference]: Without dead ends: 339913 [2022-10-16 03:45:55,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 427 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88630 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=18715, Invalid=164897, Unknown=0, NotChecked=0, Total=183612 [2022-10-16 03:45:55,926 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 12734 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 5377 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12734 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 6257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 5377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:55,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12734 Valid, 2772 Invalid, 6257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [880 Valid, 5377 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-10-16 03:45:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339913 states. [2022-10-16 03:46:00,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339913 to 146614. [2022-10-16 03:46:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146614 states, 146613 states have (on average 1.3899927018750042) internal successors, (203791), 146613 states have internal predecessors, (203791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:46:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146614 states to 146614 states and 203791 transitions. [2022-10-16 03:46:01,275 INFO L78 Accepts]: Start accepts. Automaton has 146614 states and 203791 transitions. Word has length 77 [2022-10-16 03:46:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:46:01,275 INFO L495 AbstractCegarLoop]: Abstraction has 146614 states and 203791 transitions. [2022-10-16 03:46:01,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.045454545454545) internal successors, (221), 22 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:46:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 146614 states and 203791 transitions. [2022-10-16 03:46:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 03:46:01,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:46:01,283 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:46:01,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 03:46:01,492 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,SelfDestructingSolverStorable16 [2022-10-16 03:46:01,493 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:46:01,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:46:01,494 INFO L85 PathProgramCache]: Analyzing trace with hash -968717224, now seen corresponding path program 1 times [2022-10-16 03:46:01,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:46:01,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804582873] [2022-10-16 03:46:01,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:46:01,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:46:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:46:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:46:02,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:46:02,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804582873] [2022-10-16 03:46:02,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804582873] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:46:02,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919699071] [2022-10-16 03:46:02,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:46:02,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:46:02,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:46:02,053 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) [2022-10-16 03:46:02,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 03:46:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:46:02,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 03:46:02,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:46:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:46:03,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:46:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:46:03,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919699071] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:46:03,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:46:03,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-10-16 03:46:03,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928112573] [2022-10-16 03:46:03,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:46:03,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 03:46:03,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:46:03,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 03:46:03,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-10-16 03:46:03,837 INFO L87 Difference]: Start difference. First operand 146614 states and 203791 transitions. Second operand has 21 states, 21 states have (on average 8.047619047619047) internal successors, (169), 20 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:46:13,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:46:13,244 INFO L93 Difference]: Finished difference Result 965937 states and 1315551 transitions. [2022-10-16 03:46:13,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-16 03:46:13,244 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.047619047619047) internal successors, (169), 20 states have internal predecessors, (169), 0 states have call successors, (0), 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 78 [2022-10-16 03:46:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:46:15,804 INFO L225 Difference]: With dead ends: 965937 [2022-10-16 03:46:15,805 INFO L226 Difference]: Without dead ends: 965937 [2022-10-16 03:46:15,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 145 SyntacticMatches, 10 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2316 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1564, Invalid=5242, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 03:46:15,807 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 3268 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3268 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 117 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 03:46:15,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3268 Valid, 2426 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2447 Invalid, 0 Unknown, 117 Unchecked, 2.4s Time] [2022-10-16 03:46:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965937 states. [2022-10-16 03:46:24,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965937 to 255548. [2022-10-16 03:46:24,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255548 states, 255547 states have (on average 1.3792257392964895) internal successors, (352457), 255547 states have internal predecessors, (352457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:46:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255548 states to 255548 states and 352457 transitions. [2022-10-16 03:46:26,068 INFO L78 Accepts]: Start accepts. Automaton has 255548 states and 352457 transitions. Word has length 78 [2022-10-16 03:46:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:46:26,069 INFO L495 AbstractCegarLoop]: Abstraction has 255548 states and 352457 transitions. [2022-10-16 03:46:26,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.047619047619047) internal successors, (169), 20 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:46:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 255548 states and 352457 transitions. [2022-10-16 03:46:26,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 03:46:26,074 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:46:26,074 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:46:26,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 03:46:26,279 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,SelfDestructingSolverStorable17 [2022-10-16 03:46:26,280 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:46:26,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:46:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash 635552222, now seen corresponding path program 1 times [2022-10-16 03:46:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:46:26,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469859623] [2022-10-16 03:46:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:46:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:46:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:46:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:46:26,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:46:26,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469859623] [2022-10-16 03:46:26,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469859623] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:46:26,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104361084] [2022-10-16 03:46:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:46:26,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:46:26,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:46:26,778 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) [2022-10-16 03:46:26,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 03:46:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:46:26,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 03:46:26,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:46:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:46:27,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:46:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:46:28,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104361084] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:46:28,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:46:28,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 29 [2022-10-16 03:46:28,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196533684] [2022-10-16 03:46:28,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:46:28,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 03:46:28,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:46:28,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 03:46:28,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2022-10-16 03:46:28,818 INFO L87 Difference]: Start difference. First operand 255548 states and 352457 transitions. Second operand has 30 states, 30 states have (on average 6.866666666666666) internal successors, (206), 29 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:47:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:47:27,620 INFO L93 Difference]: Finished difference Result 6239132 states and 8312846 transitions. [2022-10-16 03:47:27,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 391 states. [2022-10-16 03:47:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.866666666666666) internal successors, (206), 29 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 03:47:27,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:47:52,045 INFO L225 Difference]: With dead ends: 6239132 [2022-10-16 03:47:52,045 INFO L226 Difference]: Without dead ends: 6239132 [2022-10-16 03:47:52,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 417 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80741 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=18735, Invalid=156407, Unknown=0, NotChecked=0, Total=175142 [2022-10-16 03:47:52,059 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 13115 mSDsluCounter, 3077 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13115 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 4491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:47:52,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13115 Valid, 3256 Invalid, 4491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-16 03:47:57,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239132 states.