/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/openssl-simplified/s3_srvr_4.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:09:30,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:09:30,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:09:30,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:09:30,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:09:30,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:09:30,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:09:30,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:09:30,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:09:30,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:09:30,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:09:30,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:09:30,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:09:30,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:09:30,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:09:30,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:09:30,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:09:30,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:09:30,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:09:30,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:09:30,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:09:30,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:09:30,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:09:30,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:09:30,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:09:30,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:09:30,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:09:30,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:09:30,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:09:30,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:09:30,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:09:30,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:09:30,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:09:30,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:09:30,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:09:30,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:09:30,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:09:30,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:09:30,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:09:30,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:09:30,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:09:30,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:09:30,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:09:30,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:09:30,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:09:30,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:09:30,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:09:30,752 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:09:30,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:09:30,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:09:30,755 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:09:30,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:09:30,757 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:09:30,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:09:30,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:09:30,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:09:30,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:09:30,758 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:09:30,758 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:09:30,759 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:09:30,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:09:30,759 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:09:30,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:09:30,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:09:30,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:09:30,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:09:30,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:09:30,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:30,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:09:30,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:09:30,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:09:30,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:09:30,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:09:31,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:09:31,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:09:31,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:09:31,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:09:31,223 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:09:31,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c [2022-10-15 17:09:31,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a856c2e8/01b7fcfe18a34740b77c769b2d452fa3/FLAGbf8fda4d1 [2022-10-15 17:09:32,146 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:09:32,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c [2022-10-15 17:09:32,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a856c2e8/01b7fcfe18a34740b77c769b2d452fa3/FLAGbf8fda4d1 [2022-10-15 17:09:32,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a856c2e8/01b7fcfe18a34740b77c769b2d452fa3 [2022-10-15 17:09:32,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:09:32,372 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:09:32,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:32,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:09:32,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:09:32,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:32,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ddeb70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32, skipping insertion in model container [2022-10-15 17:09:32,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:32,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:09:32,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:09:32,793 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/openssl-simplified/s3_srvr_4.cil.c[42875,42888] [2022-10-15 17:09:32,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:32,826 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:09:32,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c[42875,42888] [2022-10-15 17:09:32,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:32,910 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:09:32,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32 WrapperNode [2022-10-15 17:09:32,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:32,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:32,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:09:32,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:09:32,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:32,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:32,978 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 546 [2022-10-15 17:09:32,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:32,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:09:32,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:09:32,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:09:32,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:32,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:32,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:32,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:33,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:33,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:33,020 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:33,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:33,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:09:33,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:09:33,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:09:33,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:09:33,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (1/1) ... [2022-10-15 17:09:33,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:33,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:33,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:09:33,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:09:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:09:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:09:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:09:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:09:33,341 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:09:33,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:09:33,370 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 17:09:34,007 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-10-15 17:09:34,007 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-10-15 17:09:34,007 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:09:34,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:09:34,020 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:09:34,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:09:34 BoogieIcfgContainer [2022-10-15 17:09:34,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:09:34,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:09:34,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:09:34,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:09:34,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:09:32" (1/3) ... [2022-10-15 17:09:34,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2165279b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:09:34, skipping insertion in model container [2022-10-15 17:09:34,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:32" (2/3) ... [2022-10-15 17:09:34,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2165279b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:09:34, skipping insertion in model container [2022-10-15 17:09:34,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:09:34" (3/3) ... [2022-10-15 17:09:34,032 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_4.cil.c [2022-10-15 17:09:34,057 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:09:34,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:09:34,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:09:34,129 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;@3821a9f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:09:34,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:09:34,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 139 states have (on average 1.7338129496402879) internal successors, (241), 141 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 17:09:34,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:34,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:34,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:34,155 INFO L85 PathProgramCache]: Analyzing trace with hash 124419826, now seen corresponding path program 1 times [2022-10-15 17:09:34,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:34,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740638177] [2022-10-15 17:09:34,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:34,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:34,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:34,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740638177] [2022-10-15 17:09:34,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740638177] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:34,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:34,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:09:34,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769654730] [2022-10-15 17:09:34,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:34,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:34,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:34,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:34,468 INFO L87 Difference]: Start difference. First operand has 142 states, 139 states have (on average 1.7338129496402879) internal successors, (241), 141 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:34,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:34,519 INFO L93 Difference]: Finished difference Result 141 states and 237 transitions. [2022-10-15 17:09:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-10-15 17:09:34,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:34,536 INFO L225 Difference]: With dead ends: 141 [2022-10-15 17:09:34,536 INFO L226 Difference]: Without dead ends: 128 [2022-10-15 17:09:34,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:34,543 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 230 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:34,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 236 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-15 17:09:34,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-10-15 17:09:34,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.5433070866141732) internal successors, (196), 127 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 196 transitions. [2022-10-15 17:09:34,598 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 196 transitions. Word has length 8 [2022-10-15 17:09:34,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:34,598 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 196 transitions. [2022-10-15 17:09:34,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 196 transitions. [2022-10-15 17:09:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 17:09:34,602 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:34,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:34,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:09:34,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:34,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:34,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1632005994, now seen corresponding path program 1 times [2022-10-15 17:09:34,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:34,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436557185] [2022-10-15 17:09:34,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:34,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:35,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:35,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436557185] [2022-10-15 17:09:35,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436557185] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:35,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:35,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:35,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273561582] [2022-10-15 17:09:35,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:35,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:35,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:35,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:35,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:35,086 INFO L87 Difference]: Start difference. First operand 128 states and 196 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:35,379 INFO L93 Difference]: Finished difference Result 175 states and 280 transitions. [2022-10-15 17:09:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:35,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-15 17:09:35,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:35,383 INFO L225 Difference]: With dead ends: 175 [2022-10-15 17:09:35,383 INFO L226 Difference]: Without dead ends: 175 [2022-10-15 17:09:35,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:35,385 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 130 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:35,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 142 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:09:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-15 17:09:35,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2022-10-15 17:09:35,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.6272189349112427) internal successors, (275), 169 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 275 transitions. [2022-10-15 17:09:35,406 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 275 transitions. Word has length 44 [2022-10-15 17:09:35,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:35,406 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 275 transitions. [2022-10-15 17:09:35,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,407 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 275 transitions. [2022-10-15 17:09:35,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 17:09:35,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:35,409 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] [2022-10-15 17:09:35,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:09:35,410 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:35,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:35,411 INFO L85 PathProgramCache]: Analyzing trace with hash -954576436, now seen corresponding path program 1 times [2022-10-15 17:09:35,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:35,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466321877] [2022-10-15 17:09:35,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:35,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:35,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:35,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466321877] [2022-10-15 17:09:35,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466321877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:35,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:35,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:35,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876969876] [2022-10-15 17:09:35,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:35,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:35,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:35,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:35,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:35,623 INFO L87 Difference]: Start difference. First operand 170 states and 275 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:35,807 INFO L93 Difference]: Finished difference Result 218 states and 360 transitions. [2022-10-15 17:09:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:35,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-10-15 17:09:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:35,810 INFO L225 Difference]: With dead ends: 218 [2022-10-15 17:09:35,810 INFO L226 Difference]: Without dead ends: 216 [2022-10-15 17:09:35,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:35,813 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 129 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:35,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 142 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:09:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-10-15 17:09:35,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2022-10-15 17:09:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.6761904761904762) internal successors, (352), 210 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 352 transitions. [2022-10-15 17:09:35,829 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 352 transitions. Word has length 45 [2022-10-15 17:09:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:35,830 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 352 transitions. [2022-10-15 17:09:35,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 352 transitions. [2022-10-15 17:09:35,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:09:35,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:35,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:35,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:09:35,835 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:35,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1754997851, now seen corresponding path program 1 times [2022-10-15 17:09:35,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:35,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670351878] [2022-10-15 17:09:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:35,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:36,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:36,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670351878] [2022-10-15 17:09:36,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670351878] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:36,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:36,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:36,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996061075] [2022-10-15 17:09:36,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:36,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:36,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:36,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:36,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,008 INFO L87 Difference]: Start difference. First operand 211 states and 352 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-10-15 17:09:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:36,137 INFO L93 Difference]: Finished difference Result 242 states and 408 transitions. [2022-10-15 17:09:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 72 [2022-10-15 17:09:36,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:36,140 INFO L225 Difference]: With dead ends: 242 [2022-10-15 17:09:36,140 INFO L226 Difference]: Without dead ends: 242 [2022-10-15 17:09:36,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,142 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 136 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:36,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 155 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:36,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-10-15 17:09:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-10-15 17:09:36,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 1.6929460580912863) internal successors, (408), 241 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 408 transitions. [2022-10-15 17:09:36,159 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 408 transitions. Word has length 72 [2022-10-15 17:09:36,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:36,159 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 408 transitions. [2022-10-15 17:09:36,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-10-15 17:09:36,160 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 408 transitions. [2022-10-15 17:09:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:09:36,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:36,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:36,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:09:36,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash -479038981, now seen corresponding path program 1 times [2022-10-15 17:09:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:36,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203094770] [2022-10-15 17:09:36,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:36,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:36,366 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:36,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:36,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203094770] [2022-10-15 17:09:36,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203094770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:36,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:36,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:36,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106339694] [2022-10-15 17:09:36,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:36,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:36,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:36,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,372 INFO L87 Difference]: Start difference. First operand 242 states and 408 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:36,480 INFO L93 Difference]: Finished difference Result 259 states and 433 transitions. [2022-10-15 17:09:36,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:36,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 84 [2022-10-15 17:09:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:36,483 INFO L225 Difference]: With dead ends: 259 [2022-10-15 17:09:36,483 INFO L226 Difference]: Without dead ends: 259 [2022-10-15 17:09:36,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,491 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 158 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:36,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 150 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:36,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-10-15 17:09:36,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2022-10-15 17:09:36,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.68359375) internal successors, (431), 256 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 431 transitions. [2022-10-15 17:09:36,520 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 431 transitions. Word has length 84 [2022-10-15 17:09:36,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:36,524 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 431 transitions. [2022-10-15 17:09:36,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 431 transitions. [2022-10-15 17:09:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:09:36,534 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:36,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-15 17:09:36,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:09:36,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:36,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:36,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1816808322, now seen corresponding path program 1 times [2022-10-15 17:09:36,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:36,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802962097] [2022-10-15 17:09:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:36,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:36,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:36,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802962097] [2022-10-15 17:09:36,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802962097] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:36,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:36,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:36,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104088896] [2022-10-15 17:09:36,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:36,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:36,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,707 INFO L87 Difference]: Start difference. First operand 257 states and 431 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:36,852 INFO L93 Difference]: Finished difference Result 304 states and 512 transitions. [2022-10-15 17:09:36,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:36,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-10-15 17:09:36,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:36,855 INFO L225 Difference]: With dead ends: 304 [2022-10-15 17:09:36,855 INFO L226 Difference]: Without dead ends: 304 [2022-10-15 17:09:36,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,862 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 133 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:36,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 147 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-10-15 17:09:36,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 299. [2022-10-15 17:09:36,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.6946308724832215) internal successors, (505), 298 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 505 transitions. [2022-10-15 17:09:36,876 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 505 transitions. Word has length 84 [2022-10-15 17:09:36,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:36,876 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 505 transitions. [2022-10-15 17:09:36,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,877 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 505 transitions. [2022-10-15 17:09:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-15 17:09:36,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:36,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:36,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:09:36,880 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:36,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:36,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1697148062, now seen corresponding path program 1 times [2022-10-15 17:09:36,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:36,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679169930] [2022-10-15 17:09:36,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:36,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:36,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:36,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679169930] [2022-10-15 17:09:36,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679169930] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:36,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:36,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:36,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303075863] [2022-10-15 17:09:36,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:36,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:36,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,995 INFO L87 Difference]: Start difference. First operand 299 states and 505 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:37,105 INFO L93 Difference]: Finished difference Result 301 states and 503 transitions. [2022-10-15 17:09:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:37,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 85 [2022-10-15 17:09:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:37,107 INFO L225 Difference]: With dead ends: 301 [2022-10-15 17:09:37,108 INFO L226 Difference]: Without dead ends: 301 [2022-10-15 17:09:37,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,109 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 157 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:37,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 138 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:37,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-10-15 17:09:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2022-10-15 17:09:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.6812080536912752) internal successors, (501), 298 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 501 transitions. [2022-10-15 17:09:37,118 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 501 transitions. Word has length 85 [2022-10-15 17:09:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:37,118 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 501 transitions. [2022-10-15 17:09:37,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 501 transitions. [2022-10-15 17:09:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-15 17:09:37,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:37,120 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:37,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:09:37,121 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:37,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:37,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1432172412, now seen corresponding path program 1 times [2022-10-15 17:09:37,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:37,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153707301] [2022-10-15 17:09:37,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:37,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:37,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153707301] [2022-10-15 17:09:37,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153707301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:37,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:37,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711937885] [2022-10-15 17:09:37,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:37,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:37,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:37,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:37,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,252 INFO L87 Difference]: Start difference. First operand 299 states and 501 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:37,388 INFO L93 Difference]: Finished difference Result 304 states and 506 transitions. [2022-10-15 17:09:37,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:37,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-10-15 17:09:37,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:37,391 INFO L225 Difference]: With dead ends: 304 [2022-10-15 17:09:37,391 INFO L226 Difference]: Without dead ends: 302 [2022-10-15 17:09:37,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,394 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 130 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:37,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 145 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:37,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-10-15 17:09:37,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 297. [2022-10-15 17:09:37,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.6756756756756757) internal successors, (496), 296 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 496 transitions. [2022-10-15 17:09:37,408 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 496 transitions. Word has length 85 [2022-10-15 17:09:37,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:37,408 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 496 transitions. [2022-10-15 17:09:37,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,409 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 496 transitions. [2022-10-15 17:09:37,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 17:09:37,412 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:37,412 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:37,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:09:37,422 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:37,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1085183485, now seen corresponding path program 1 times [2022-10-15 17:09:37,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:37,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821962782] [2022-10-15 17:09:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 17:09:37,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:37,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821962782] [2022-10-15 17:09:37,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821962782] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:37,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:37,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:37,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970344843] [2022-10-15 17:09:37,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:37,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:37,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:37,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:37,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,586 INFO L87 Difference]: Start difference. First operand 297 states and 496 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:37,672 INFO L93 Difference]: Finished difference Result 306 states and 502 transitions. [2022-10-15 17:09:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:37,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-10-15 17:09:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:37,674 INFO L225 Difference]: With dead ends: 306 [2022-10-15 17:09:37,674 INFO L226 Difference]: Without dead ends: 306 [2022-10-15 17:09:37,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,676 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 162 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:37,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 149 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:37,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-10-15 17:09:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2022-10-15 17:09:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.6459016393442623) internal successors, (502), 305 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 502 transitions. [2022-10-15 17:09:37,686 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 502 transitions. Word has length 97 [2022-10-15 17:09:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:37,686 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 502 transitions. [2022-10-15 17:09:37,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 502 transitions. [2022-10-15 17:09:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:09:37,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:37,689 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-15 17:09:37,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:09:37,689 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:37,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:37,690 INFO L85 PathProgramCache]: Analyzing trace with hash -860132162, now seen corresponding path program 1 times [2022-10-15 17:09:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:37,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851026080] [2022-10-15 17:09:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:37,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:37,812 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:37,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:37,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851026080] [2022-10-15 17:09:37,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851026080] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:37,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:37,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:37,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909047841] [2022-10-15 17:09:37,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:37,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:37,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:37,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:37,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,815 INFO L87 Difference]: Start difference. First operand 306 states and 502 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-10-15 17:09:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:37,925 INFO L93 Difference]: Finished difference Result 337 states and 551 transitions. [2022-10-15 17:09:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:37,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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 98 [2022-10-15 17:09:37,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:37,928 INFO L225 Difference]: With dead ends: 337 [2022-10-15 17:09:37,928 INFO L226 Difference]: Without dead ends: 337 [2022-10-15 17:09:37,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,930 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 141 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:37,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-10-15 17:09:37,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2022-10-15 17:09:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.6437125748502994) internal successors, (549), 334 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 549 transitions. [2022-10-15 17:09:37,940 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 549 transitions. Word has length 98 [2022-10-15 17:09:37,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:37,941 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 549 transitions. [2022-10-15 17:09:37,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-10-15 17:09:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 549 transitions. [2022-10-15 17:09:37,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:09:37,943 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:37,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-15 17:09:37,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:09:37,944 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1120928325, now seen corresponding path program 1 times [2022-10-15 17:09:37,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:37,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030514220] [2022-10-15 17:09:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:37,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:38,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:38,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030514220] [2022-10-15 17:09:38,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030514220] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:38,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:38,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:38,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446631076] [2022-10-15 17:09:38,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:38,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:38,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:38,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:38,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:38,080 INFO L87 Difference]: Start difference. First operand 335 states and 549 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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) [2022-10-15 17:09:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:38,207 INFO L93 Difference]: Finished difference Result 337 states and 547 transitions. [2022-10-15 17:09:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:38,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 99 [2022-10-15 17:09:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:38,210 INFO L225 Difference]: With dead ends: 337 [2022-10-15 17:09:38,210 INFO L226 Difference]: Without dead ends: 337 [2022-10-15 17:09:38,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:38,212 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 140 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:38,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 141 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:38,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-10-15 17:09:38,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2022-10-15 17:09:38,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.6317365269461077) internal successors, (545), 334 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 545 transitions. [2022-10-15 17:09:38,224 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 545 transitions. Word has length 99 [2022-10-15 17:09:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:38,225 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 545 transitions. [2022-10-15 17:09:38,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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) [2022-10-15 17:09:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 545 transitions. [2022-10-15 17:09:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:09:38,230 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:38,231 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-15 17:09:38,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:09:38,232 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:38,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:38,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1084775058, now seen corresponding path program 1 times [2022-10-15 17:09:38,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:38,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816300228] [2022-10-15 17:09:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:38,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:38,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:38,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816300228] [2022-10-15 17:09:38,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816300228] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:38,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:38,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:38,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464855505] [2022-10-15 17:09:38,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:38,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:38,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:38,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:38,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:38,393 INFO L87 Difference]: Start difference. First operand 335 states and 545 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2022-10-15 17:09:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:38,513 INFO L93 Difference]: Finished difference Result 370 states and 600 transitions. [2022-10-15 17:09:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:38,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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 100 [2022-10-15 17:09:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:38,517 INFO L225 Difference]: With dead ends: 370 [2022-10-15 17:09:38,517 INFO L226 Difference]: Without dead ends: 370 [2022-10-15 17:09:38,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:38,519 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 143 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:38,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 149 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:38,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-10-15 17:09:38,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2022-10-15 17:09:38,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.626038781163435) internal successors, (587), 361 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 587 transitions. [2022-10-15 17:09:38,533 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 587 transitions. Word has length 100 [2022-10-15 17:09:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:38,533 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 587 transitions. [2022-10-15 17:09:38,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2022-10-15 17:09:38,533 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 587 transitions. [2022-10-15 17:09:38,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:09:38,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:38,535 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-15 17:09:38,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:09:38,536 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:38,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1691577195, now seen corresponding path program 1 times [2022-10-15 17:09:38,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:38,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67295505] [2022-10-15 17:09:38,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:38,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:38,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:38,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67295505] [2022-10-15 17:09:38,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67295505] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:38,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:38,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:38,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167202798] [2022-10-15 17:09:38,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:38,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:38,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:38,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:38,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:38,664 INFO L87 Difference]: Start difference. First operand 362 states and 587 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:38,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:38,798 INFO L93 Difference]: Finished difference Result 370 states and 595 transitions. [2022-10-15 17:09:38,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:38,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 101 [2022-10-15 17:09:38,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:38,801 INFO L225 Difference]: With dead ends: 370 [2022-10-15 17:09:38,802 INFO L226 Difference]: Without dead ends: 370 [2022-10-15 17:09:38,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:38,803 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:38,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 149 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-10-15 17:09:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2022-10-15 17:09:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.6121883656509695) internal successors, (582), 361 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:38,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 582 transitions. [2022-10-15 17:09:38,815 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 582 transitions. Word has length 101 [2022-10-15 17:09:38,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:38,815 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 582 transitions. [2022-10-15 17:09:38,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 582 transitions. [2022-10-15 17:09:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-15 17:09:38,818 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:38,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:38,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:09:38,818 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:38,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash -479008336, now seen corresponding path program 1 times [2022-10-15 17:09:38,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:38,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452686023] [2022-10-15 17:09:38,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:38,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-15 17:09:38,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:38,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452686023] [2022-10-15 17:09:38,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452686023] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:38,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:38,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:38,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563372491] [2022-10-15 17:09:38,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:38,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:38,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:38,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:38,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:38,952 INFO L87 Difference]: Start difference. First operand 362 states and 582 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:39,058 INFO L93 Difference]: Finished difference Result 387 states and 617 transitions. [2022-10-15 17:09:39,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:39,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 105 [2022-10-15 17:09:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:39,062 INFO L225 Difference]: With dead ends: 387 [2022-10-15 17:09:39,062 INFO L226 Difference]: Without dead ends: 387 [2022-10-15 17:09:39,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,064 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 149 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:39,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 144 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-10-15 17:09:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2022-10-15 17:09:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5994764397905759) internal successors, (611), 382 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 611 transitions. [2022-10-15 17:09:39,078 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 611 transitions. Word has length 105 [2022-10-15 17:09:39,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:39,078 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 611 transitions. [2022-10-15 17:09:39,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 611 transitions. [2022-10-15 17:09:39,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-15 17:09:39,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:39,081 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:39,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:09:39,081 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:39,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2118869193, now seen corresponding path program 1 times [2022-10-15 17:09:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:39,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062382570] [2022-10-15 17:09:39,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:39,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-15 17:09:39,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:39,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062382570] [2022-10-15 17:09:39,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062382570] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:39,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:39,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:39,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299584912] [2022-10-15 17:09:39,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:39,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:39,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:39,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:39,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,243 INFO L87 Difference]: Start difference. First operand 383 states and 611 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-10-15 17:09:39,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:39,353 INFO L93 Difference]: Finished difference Result 387 states and 611 transitions. [2022-10-15 17:09:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:39,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 106 [2022-10-15 17:09:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:39,356 INFO L225 Difference]: With dead ends: 387 [2022-10-15 17:09:39,356 INFO L226 Difference]: Without dead ends: 387 [2022-10-15 17:09:39,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,359 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 148 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:39,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 144 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-10-15 17:09:39,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2022-10-15 17:09:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5837696335078535) internal successors, (605), 382 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 605 transitions. [2022-10-15 17:09:39,372 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 605 transitions. Word has length 106 [2022-10-15 17:09:39,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:39,372 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 605 transitions. [2022-10-15 17:09:39,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-10-15 17:09:39,373 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 605 transitions. [2022-10-15 17:09:39,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 17:09:39,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:39,375 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:39,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:09:39,375 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:39,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:39,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1932137040, now seen corresponding path program 1 times [2022-10-15 17:09:39,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:39,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189439948] [2022-10-15 17:09:39,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:39,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-15 17:09:39,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:39,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189439948] [2022-10-15 17:09:39,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189439948] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:39,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:39,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:39,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155004235] [2022-10-15 17:09:39,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:39,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:39,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:39,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:39,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,481 INFO L87 Difference]: Start difference. First operand 383 states and 605 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:39,518 INFO L93 Difference]: Finished difference Result 756 states and 1192 transitions. [2022-10-15 17:09:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:39,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 17:09:39,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:39,524 INFO L225 Difference]: With dead ends: 756 [2022-10-15 17:09:39,524 INFO L226 Difference]: Without dead ends: 756 [2022-10-15 17:09:39,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,526 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 137 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:39,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 543 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-10-15 17:09:39,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 756. [2022-10-15 17:09:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 755 states have (on average 1.5788079470198675) internal successors, (1192), 755 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1192 transitions. [2022-10-15 17:09:39,558 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1192 transitions. Word has length 121 [2022-10-15 17:09:39,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:39,559 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 1192 transitions. [2022-10-15 17:09:39,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1192 transitions. [2022-10-15 17:09:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:09:39,562 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:39,562 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:39,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:09:39,562 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:39,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:39,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1552830339, now seen corresponding path program 1 times [2022-10-15 17:09:39,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:39,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464964506] [2022-10-15 17:09:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:39,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:09:39,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:39,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464964506] [2022-10-15 17:09:39,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464964506] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:39,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:39,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:39,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743620001] [2022-10-15 17:09:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:39,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:39,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:39,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,645 INFO L87 Difference]: Start difference. First operand 756 states and 1192 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:39,674 INFO L93 Difference]: Finished difference Result 1084 states and 1709 transitions. [2022-10-15 17:09:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:39,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-10-15 17:09:39,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:39,681 INFO L225 Difference]: With dead ends: 1084 [2022-10-15 17:09:39,682 INFO L226 Difference]: Without dead ends: 1084 [2022-10-15 17:09:39,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,683 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 134 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:39,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 543 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2022-10-15 17:09:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1084. [2022-10-15 17:09:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1083 states have (on average 1.5780240073868883) internal successors, (1709), 1083 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1709 transitions. [2022-10-15 17:09:39,715 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1709 transitions. Word has length 122 [2022-10-15 17:09:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:39,715 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1709 transitions. [2022-10-15 17:09:39,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1709 transitions. [2022-10-15 17:09:39,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:09:39,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:39,719 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:39,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:09:39,720 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:39,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:39,720 INFO L85 PathProgramCache]: Analyzing trace with hash 323652479, now seen corresponding path program 1 times [2022-10-15 17:09:39,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:39,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115022877] [2022-10-15 17:09:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:39,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-15 17:09:39,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:39,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115022877] [2022-10-15 17:09:39,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115022877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:39,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:39,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561775549] [2022-10-15 17:09:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:39,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:39,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,791 INFO L87 Difference]: Start difference. First operand 1084 states and 1709 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:39,830 INFO L93 Difference]: Finished difference Result 1453 states and 2291 transitions. [2022-10-15 17:09:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:39,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-10-15 17:09:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:39,840 INFO L225 Difference]: With dead ends: 1453 [2022-10-15 17:09:39,840 INFO L226 Difference]: Without dead ends: 1453 [2022-10-15 17:09:39,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,841 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:39,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 546 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-10-15 17:09:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1453. [2022-10-15 17:09:39,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1452 states have (on average 1.5778236914600552) internal successors, (2291), 1452 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2291 transitions. [2022-10-15 17:09:39,886 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2291 transitions. Word has length 122 [2022-10-15 17:09:39,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:39,887 INFO L495 AbstractCegarLoop]: Abstraction has 1453 states and 2291 transitions. [2022-10-15 17:09:39,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:39,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2291 transitions. [2022-10-15 17:09:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:09:39,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:39,892 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:39,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:09:39,892 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:39,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:39,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1712946493, now seen corresponding path program 1 times [2022-10-15 17:09:39,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:39,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081426937] [2022-10-15 17:09:39,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:39,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-10-15 17:09:39,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:39,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081426937] [2022-10-15 17:09:39,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081426937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:39,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:39,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:39,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700581347] [2022-10-15 17:09:39,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:39,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:39,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:39,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:39,961 INFO L87 Difference]: Start difference. First operand 1453 states and 2291 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-10-15 17:09:39,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:39,993 INFO L93 Difference]: Finished difference Result 1804 states and 2842 transitions. [2022-10-15 17:09:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:39,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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 122 [2022-10-15 17:09:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:40,004 INFO L225 Difference]: With dead ends: 1804 [2022-10-15 17:09:40,005 INFO L226 Difference]: Without dead ends: 1804 [2022-10-15 17:09:40,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:40,006 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 170 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:40,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 388 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:40,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2022-10-15 17:09:40,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1804. [2022-10-15 17:09:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1803 states have (on average 1.5762617859123682) internal successors, (2842), 1803 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2842 transitions. [2022-10-15 17:09:40,054 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2842 transitions. Word has length 122 [2022-10-15 17:09:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:40,055 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2842 transitions. [2022-10-15 17:09:40,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-10-15 17:09:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2842 transitions. [2022-10-15 17:09:40,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:09:40,061 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:40,061 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:40,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:09:40,062 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:40,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1532697181, now seen corresponding path program 1 times [2022-10-15 17:09:40,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:40,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637109191] [2022-10-15 17:09:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:40,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-15 17:09:40,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:40,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637109191] [2022-10-15 17:09:40,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637109191] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:40,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:40,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:40,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930843963] [2022-10-15 17:09:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:40,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:40,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:40,211 INFO L87 Difference]: Start difference. First operand 1804 states and 2842 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:40,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:40,374 INFO L93 Difference]: Finished difference Result 1854 states and 2830 transitions. [2022-10-15 17:09:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:40,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2022-10-15 17:09:40,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:40,389 INFO L225 Difference]: With dead ends: 1854 [2022-10-15 17:09:40,389 INFO L226 Difference]: Without dead ends: 1854 [2022-10-15 17:09:40,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:40,390 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 50 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:40,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 297 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2022-10-15 17:09:40,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1804. [2022-10-15 17:09:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1803 states have (on average 1.5363283416528009) internal successors, (2770), 1803 states have internal predecessors, (2770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:40,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2770 transitions. [2022-10-15 17:09:40,443 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2770 transitions. Word has length 199 [2022-10-15 17:09:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:40,443 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2770 transitions. [2022-10-15 17:09:40,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2770 transitions. [2022-10-15 17:09:40,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-10-15 17:09:40,450 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:40,450 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:40,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:09:40,451 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:40,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash -995291011, now seen corresponding path program 1 times [2022-10-15 17:09:40,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:40,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940808970] [2022-10-15 17:09:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:40,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-15 17:09:40,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:40,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940808970] [2022-10-15 17:09:40,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940808970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:40,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:40,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:40,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516781296] [2022-10-15 17:09:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:40,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:40,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:40,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:40,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:40,576 INFO L87 Difference]: Start difference. First operand 1804 states and 2770 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:40,718 INFO L93 Difference]: Finished difference Result 1871 states and 2771 transitions. [2022-10-15 17:09:40,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:40,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2022-10-15 17:09:40,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:40,728 INFO L225 Difference]: With dead ends: 1871 [2022-10-15 17:09:40,728 INFO L226 Difference]: Without dead ends: 1871 [2022-10-15 17:09:40,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:40,732 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 152 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:40,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 163 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2022-10-15 17:09:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1804. [2022-10-15 17:09:40,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1803 states have (on average 1.4941763727121464) internal successors, (2694), 1803 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2694 transitions. [2022-10-15 17:09:40,776 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2694 transitions. Word has length 213 [2022-10-15 17:09:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:40,777 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2694 transitions. [2022-10-15 17:09:40,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2694 transitions. [2022-10-15 17:09:40,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-10-15 17:09:40,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:40,783 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:40,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:09:40,784 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:40,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash -344869126, now seen corresponding path program 1 times [2022-10-15 17:09:40,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:40,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51645210] [2022-10-15 17:09:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:40,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-15 17:09:40,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:40,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51645210] [2022-10-15 17:09:40,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51645210] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:40,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648840029] [2022-10-15 17:09:40,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:40,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:40,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:40,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:40,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:09:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:41,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:41,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:41,278 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-15 17:09:41,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:09:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-15 17:09:41,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648840029] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:09:41,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:09:41,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 17:09:41,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368709239] [2022-10-15 17:09:41,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:09:41,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:09:41,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:09:41,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:09:41,412 INFO L87 Difference]: Start difference. First operand 1804 states and 2694 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:41,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:41,787 INFO L93 Difference]: Finished difference Result 2469 states and 3591 transitions. [2022-10-15 17:09:41,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:09:41,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-10-15 17:09:41,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:41,807 INFO L225 Difference]: With dead ends: 2469 [2022-10-15 17:09:41,807 INFO L226 Difference]: Without dead ends: 2436 [2022-10-15 17:09:41,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:09:41,811 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 486 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:41,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 448 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:09:41,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-10-15 17:09:41,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 1604. [2022-10-15 17:09:41,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1603 states have (on average 1.470991890205864) internal successors, (2358), 1603 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:41,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2358 transitions. [2022-10-15 17:09:41,874 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2358 transitions. Word has length 232 [2022-10-15 17:09:41,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:41,875 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2358 transitions. [2022-10-15 17:09:41,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:41,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2358 transitions. [2022-10-15 17:09:41,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-15 17:09:41,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:41,881 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:41,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:42,095 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,SelfDestructingSolverStorable21 [2022-10-15 17:09:42,095 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1731638989, now seen corresponding path program 1 times [2022-10-15 17:09:42,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:42,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470343123] [2022-10-15 17:09:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:42,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:42,249 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-10-15 17:09:42,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:42,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470343123] [2022-10-15 17:09:42,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470343123] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:42,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:42,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:42,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358756010] [2022-10-15 17:09:42,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:42,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:42,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:42,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:42,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:42,253 INFO L87 Difference]: Start difference. First operand 1604 states and 2358 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:42,400 INFO L93 Difference]: Finished difference Result 1799 states and 2548 transitions. [2022-10-15 17:09:42,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:42,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-10-15 17:09:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:42,410 INFO L225 Difference]: With dead ends: 1799 [2022-10-15 17:09:42,410 INFO L226 Difference]: Without dead ends: 1679 [2022-10-15 17:09:42,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:42,411 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 46 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:42,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 270 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2022-10-15 17:09:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1679. [2022-10-15 17:09:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1678 states have (on average 1.4439809296781883) internal successors, (2423), 1678 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2423 transitions. [2022-10-15 17:09:42,452 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2423 transitions. Word has length 241 [2022-10-15 17:09:42,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:42,452 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2423 transitions. [2022-10-15 17:09:42,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2423 transitions. [2022-10-15 17:09:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 17:09:42,459 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:42,459 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:42,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-15 17:09:42,460 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:42,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:42,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1272517136, now seen corresponding path program 1 times [2022-10-15 17:09:42,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:42,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535030496] [2022-10-15 17:09:42,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:42,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-15 17:09:42,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:42,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535030496] [2022-10-15 17:09:42,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535030496] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:42,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105952434] [2022-10-15 17:09:42,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:42,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:42,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:42,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:42,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:09:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:42,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:42,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-15 17:09:42,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:09:42,930 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-15 17:09:42,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105952434] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:09:42,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:09:42,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 17:09:42,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384142043] [2022-10-15 17:09:42,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:09:42,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:09:42,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:42,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:09:42,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:09:42,933 INFO L87 Difference]: Start difference. First operand 1679 states and 2423 transitions. Second operand has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 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) [2022-10-15 17:09:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:43,753 INFO L93 Difference]: Finished difference Result 6029 states and 7951 transitions. [2022-10-15 17:09:43,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:09:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 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 253 [2022-10-15 17:09:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:43,785 INFO L225 Difference]: With dead ends: 6029 [2022-10-15 17:09:43,786 INFO L226 Difference]: Without dead ends: 6029 [2022-10-15 17:09:43,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:09:43,787 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 416 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:43,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1295 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 17:09:43,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6029 states. [2022-10-15 17:09:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6029 to 2357. [2022-10-15 17:09:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2356 states have (on average 1.3247028862478778) internal successors, (3121), 2356 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 3121 transitions. [2022-10-15 17:09:43,877 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 3121 transitions. Word has length 253 [2022-10-15 17:09:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:43,878 INFO L495 AbstractCegarLoop]: Abstraction has 2357 states and 3121 transitions. [2022-10-15 17:09:43,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 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) [2022-10-15 17:09:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 3121 transitions. [2022-10-15 17:09:43,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 17:09:43,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:43,886 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:43,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:44,101 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,SelfDestructingSolverStorable23 [2022-10-15 17:09:44,102 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1561336526, now seen corresponding path program 1 times [2022-10-15 17:09:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:44,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426893110] [2022-10-15 17:09:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:44,206 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-10-15 17:09:44,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:44,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426893110] [2022-10-15 17:09:44,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426893110] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:44,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:44,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:44,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937750433] [2022-10-15 17:09:44,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:44,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:44,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:44,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:44,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:44,209 INFO L87 Difference]: Start difference. First operand 2357 states and 3121 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:44,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:44,246 INFO L93 Difference]: Finished difference Result 4184 states and 5523 transitions. [2022-10-15 17:09:44,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:44,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2022-10-15 17:09:44,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:44,267 INFO L225 Difference]: With dead ends: 4184 [2022-10-15 17:09:44,268 INFO L226 Difference]: Without dead ends: 4184 [2022-10-15 17:09:44,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:44,269 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 120 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:44,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 514 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4184 states. [2022-10-15 17:09:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4184 to 4182. [2022-10-15 17:09:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 4181 states have (on average 1.3207366658694093) internal successors, (5522), 4181 states have internal predecessors, (5522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5522 transitions. [2022-10-15 17:09:44,375 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5522 transitions. Word has length 253 [2022-10-15 17:09:44,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:44,375 INFO L495 AbstractCegarLoop]: Abstraction has 4182 states and 5522 transitions. [2022-10-15 17:09:44,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5522 transitions. [2022-10-15 17:09:44,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-10-15 17:09:44,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:44,388 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:44,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-15 17:09:44,389 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:44,390 INFO L85 PathProgramCache]: Analyzing trace with hash -914284920, now seen corresponding path program 1 times [2022-10-15 17:09:44,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:44,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779357337] [2022-10-15 17:09:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-10-15 17:09:44,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:44,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779357337] [2022-10-15 17:09:44,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779357337] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:44,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:44,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:44,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811414049] [2022-10-15 17:09:44,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:44,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:44,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:44,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:44,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:44,553 INFO L87 Difference]: Start difference. First operand 4182 states and 5522 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:44,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:44,708 INFO L93 Difference]: Finished difference Result 4410 states and 5758 transitions. [2022-10-15 17:09:44,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:44,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2022-10-15 17:09:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:44,721 INFO L225 Difference]: With dead ends: 4410 [2022-10-15 17:09:44,721 INFO L226 Difference]: Without dead ends: 4410 [2022-10-15 17:09:44,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:44,722 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 137 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:44,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 166 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4410 states. [2022-10-15 17:09:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4410 to 4182. [2022-10-15 17:09:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 4181 states have (on average 1.3035159052858167) internal successors, (5450), 4181 states have internal predecessors, (5450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:44,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5450 transitions. [2022-10-15 17:09:44,834 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5450 transitions. Word has length 256 [2022-10-15 17:09:44,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:44,834 INFO L495 AbstractCegarLoop]: Abstraction has 4182 states and 5450 transitions. [2022-10-15 17:09:44,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:44,834 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5450 transitions. [2022-10-15 17:09:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-10-15 17:09:44,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:44,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:44,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-15 17:09:44,847 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:44,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1357789354, now seen corresponding path program 1 times [2022-10-15 17:09:44,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:44,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348438900] [2022-10-15 17:09:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:44,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2022-10-15 17:09:44,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:44,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348438900] [2022-10-15 17:09:44,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348438900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:44,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:44,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:44,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048248540] [2022-10-15 17:09:44,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:44,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:44,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:44,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:44,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:44,947 INFO L87 Difference]: Start difference. First operand 4182 states and 5450 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:45,064 INFO L93 Difference]: Finished difference Result 4314 states and 5612 transitions. [2022-10-15 17:09:45,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:45,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2022-10-15 17:09:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:45,076 INFO L225 Difference]: With dead ends: 4314 [2022-10-15 17:09:45,076 INFO L226 Difference]: Without dead ends: 4314 [2022-10-15 17:09:45,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:45,077 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 13 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:45,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 300 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4314 states. [2022-10-15 17:09:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4314 to 4274. [2022-10-15 17:09:45,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 4273 states have (on average 1.301661596068336) internal successors, (5562), 4273 states have internal predecessors, (5562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 5562 transitions. [2022-10-15 17:09:45,165 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 5562 transitions. Word has length 290 [2022-10-15 17:09:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:45,166 INFO L495 AbstractCegarLoop]: Abstraction has 4274 states and 5562 transitions. [2022-10-15 17:09:45,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 5562 transitions. [2022-10-15 17:09:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-10-15 17:09:45,179 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:45,179 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:45,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-15 17:09:45,180 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:45,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:45,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1702375352, now seen corresponding path program 1 times [2022-10-15 17:09:45,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:45,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928603774] [2022-10-15 17:09:45,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:45,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2022-10-15 17:09:45,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928603774] [2022-10-15 17:09:45,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928603774] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:45,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:45,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:45,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043448020] [2022-10-15 17:09:45,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:45,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:45,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:45,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:45,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:45,307 INFO L87 Difference]: Start difference. First operand 4274 states and 5562 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:45,423 INFO L93 Difference]: Finished difference Result 4654 states and 6072 transitions. [2022-10-15 17:09:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:45,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 311 [2022-10-15 17:09:45,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:45,434 INFO L225 Difference]: With dead ends: 4654 [2022-10-15 17:09:45,434 INFO L226 Difference]: Without dead ends: 4654 [2022-10-15 17:09:45,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:45,435 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 29 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:45,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 299 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:45,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2022-10-15 17:09:45,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 4524. [2022-10-15 17:09:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4523 states have (on average 1.2960424497015255) internal successors, (5862), 4523 states have internal predecessors, (5862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 5862 transitions. [2022-10-15 17:09:45,528 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 5862 transitions. Word has length 311 [2022-10-15 17:09:45,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:45,529 INFO L495 AbstractCegarLoop]: Abstraction has 4524 states and 5862 transitions. [2022-10-15 17:09:45,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 5862 transitions. [2022-10-15 17:09:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-10-15 17:09:45,542 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:45,542 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:45,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-15 17:09:45,542 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:45,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:45,543 INFO L85 PathProgramCache]: Analyzing trace with hash 602793911, now seen corresponding path program 1 times [2022-10-15 17:09:45,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:45,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070147634] [2022-10-15 17:09:45,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:45,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-10-15 17:09:45,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:45,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070147634] [2022-10-15 17:09:45,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070147634] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:45,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:45,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:45,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703197489] [2022-10-15 17:09:45,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:45,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:45,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:45,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:45,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:45,684 INFO L87 Difference]: Start difference. First operand 4524 states and 5862 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:45,774 INFO L93 Difference]: Finished difference Result 3120 states and 3959 transitions. [2022-10-15 17:09:45,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:45,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2022-10-15 17:09:45,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:45,781 INFO L225 Difference]: With dead ends: 3120 [2022-10-15 17:09:45,781 INFO L226 Difference]: Without dead ends: 2476 [2022-10-15 17:09:45,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:45,782 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:45,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 288 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:45,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-10-15 17:09:45,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2022-10-15 17:09:45,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.2836363636363637) internal successors, (3177), 2475 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3177 transitions. [2022-10-15 17:09:45,831 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3177 transitions. Word has length 321 [2022-10-15 17:09:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:45,832 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3177 transitions. [2022-10-15 17:09:45,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:45,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3177 transitions. [2022-10-15 17:09:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-10-15 17:09:45,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:45,862 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:45,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-10-15 17:09:45,862 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:45,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash -616309997, now seen corresponding path program 1 times [2022-10-15 17:09:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:45,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859677095] [2022-10-15 17:09:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:45,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2022-10-15 17:09:45,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:45,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859677095] [2022-10-15 17:09:45,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859677095] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:45,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:45,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826978590] [2022-10-15 17:09:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:45,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:45,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:45,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:45,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:45,978 INFO L87 Difference]: Start difference. First operand 2476 states and 3177 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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) [2022-10-15 17:09:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:46,077 INFO L93 Difference]: Finished difference Result 2516 states and 3217 transitions. [2022-10-15 17:09:46,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:46,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2022-10-15 17:09:46,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:46,083 INFO L225 Difference]: With dead ends: 2516 [2022-10-15 17:09:46,084 INFO L226 Difference]: Without dead ends: 2516 [2022-10-15 17:09:46,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:46,085 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 19 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:46,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 293 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2022-10-15 17:09:46,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2476. [2022-10-15 17:09:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.2735353535353535) internal successors, (3152), 2475 states have internal predecessors, (3152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3152 transitions. [2022-10-15 17:09:46,135 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3152 transitions. Word has length 337 [2022-10-15 17:09:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:46,135 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3152 transitions. [2022-10-15 17:09:46,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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) [2022-10-15 17:09:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3152 transitions. [2022-10-15 17:09:46,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-10-15 17:09:46,145 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:46,145 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:46,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-15 17:09:46,146 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:46,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:46,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1063549815, now seen corresponding path program 1 times [2022-10-15 17:09:46,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:46,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312335589] [2022-10-15 17:09:46,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:46,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 738 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-10-15 17:09:46,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:46,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312335589] [2022-10-15 17:09:46,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312335589] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:46,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:46,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:46,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591475321] [2022-10-15 17:09:46,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:46,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:46,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:46,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:46,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:46,274 INFO L87 Difference]: Start difference. First operand 2476 states and 3152 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:46,375 INFO L93 Difference]: Finished difference Result 2486 states and 3137 transitions. [2022-10-15 17:09:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:46,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2022-10-15 17:09:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:46,382 INFO L225 Difference]: With dead ends: 2486 [2022-10-15 17:09:46,382 INFO L226 Difference]: Without dead ends: 2486 [2022-10-15 17:09:46,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:46,383 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:46,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 293 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2022-10-15 17:09:46,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2476. [2022-10-15 17:09:46,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.2634343434343434) internal successors, (3127), 2475 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3127 transitions. [2022-10-15 17:09:46,431 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3127 transitions. Word has length 360 [2022-10-15 17:09:46,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:46,432 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3127 transitions. [2022-10-15 17:09:46,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3127 transitions. [2022-10-15 17:09:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-10-15 17:09:46,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:46,443 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:46,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-15 17:09:46,444 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:46,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:46,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2107174257, now seen corresponding path program 1 times [2022-10-15 17:09:46,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:46,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58077236] [2022-10-15 17:09:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:46,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 1011 proven. 26 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2022-10-15 17:09:46,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:46,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58077236] [2022-10-15 17:09:46,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58077236] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:46,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368144180] [2022-10-15 17:09:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:46,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:46,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:46,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:46,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:09:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:46,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:46,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-10-15 17:09:47,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:09:47,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368144180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:47,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:09:47,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 17:09:47,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169941988] [2022-10-15 17:09:47,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:47,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:47,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:47,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:47,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:47,182 INFO L87 Difference]: Start difference. First operand 2476 states and 3127 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:47,204 INFO L93 Difference]: Finished difference Result 2930 states and 3728 transitions. [2022-10-15 17:09:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:47,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 393 [2022-10-15 17:09:47,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:47,211 INFO L225 Difference]: With dead ends: 2930 [2022-10-15 17:09:47,212 INFO L226 Difference]: Without dead ends: 2930 [2022-10-15 17:09:47,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:47,214 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 91 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:47,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 447 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-10-15 17:09:47,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2340. [2022-10-15 17:09:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2340 states, 2339 states have (on average 1.27105600684053) internal successors, (2973), 2339 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 2973 transitions. [2022-10-15 17:09:47,266 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 2973 transitions. Word has length 393 [2022-10-15 17:09:47,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:47,267 INFO L495 AbstractCegarLoop]: Abstraction has 2340 states and 2973 transitions. [2022-10-15 17:09:47,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 2973 transitions. [2022-10-15 17:09:47,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-10-15 17:09:47,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:47,279 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:47,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:47,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:47,494 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:47,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:47,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2021892229, now seen corresponding path program 1 times [2022-10-15 17:09:47,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:47,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006752609] [2022-10-15 17:09:47,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:47,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-10-15 17:09:47,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:47,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006752609] [2022-10-15 17:09:47,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006752609] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:47,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686473000] [2022-10-15 17:09:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:47,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:47,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:47,723 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:47,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:09:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:47,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:47,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-10-15 17:09:47,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:09:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-10-15 17:09:48,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686473000] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:09:48,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:09:48,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 17:09:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191210428] [2022-10-15 17:09:48,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:09:48,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:09:48,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:09:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:09:48,104 INFO L87 Difference]: Start difference. First operand 2340 states and 2973 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:48,458 INFO L93 Difference]: Finished difference Result 3277 states and 4121 transitions. [2022-10-15 17:09:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:09:48,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2022-10-15 17:09:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:48,465 INFO L225 Difference]: With dead ends: 3277 [2022-10-15 17:09:48,466 INFO L226 Difference]: Without dead ends: 3228 [2022-10-15 17:09:48,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 818 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:09:48,467 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 300 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:48,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 522 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:09:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2022-10-15 17:09:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 2400. [2022-10-15 17:09:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2400 states, 2399 states have (on average 1.2705293872446852) internal successors, (3048), 2399 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 3048 transitions. [2022-10-15 17:09:48,514 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 3048 transitions. Word has length 409 [2022-10-15 17:09:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:48,515 INFO L495 AbstractCegarLoop]: Abstraction has 2400 states and 3048 transitions. [2022-10-15 17:09:48,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 3048 transitions. [2022-10-15 17:09:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2022-10-15 17:09:48,522 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:48,523 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:48,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:48,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:48,738 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:48,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash -50523035, now seen corresponding path program 1 times [2022-10-15 17:09:48,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:48,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470826038] [2022-10-15 17:09:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:48,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3128 backedges. 1661 proven. 0 refuted. 0 times theorem prover too weak. 1467 trivial. 0 not checked. [2022-10-15 17:09:48,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:48,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470826038] [2022-10-15 17:09:48,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470826038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:48,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:48,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:48,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708896097] [2022-10-15 17:09:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:48,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:48,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:48,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:48,917 INFO L87 Difference]: Start difference. First operand 2400 states and 3048 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:49,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:49,044 INFO L93 Difference]: Finished difference Result 2580 states and 3253 transitions. [2022-10-15 17:09:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:49,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 537 [2022-10-15 17:09:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:49,051 INFO L225 Difference]: With dead ends: 2580 [2022-10-15 17:09:49,051 INFO L226 Difference]: Without dead ends: 2580 [2022-10-15 17:09:49,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:49,053 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 11 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:49,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 290 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-10-15 17:09:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2570. [2022-10-15 17:09:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2569 states have (on average 1.262358894511483) internal successors, (3243), 2569 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3243 transitions. [2022-10-15 17:09:49,103 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3243 transitions. Word has length 537 [2022-10-15 17:09:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:49,104 INFO L495 AbstractCegarLoop]: Abstraction has 2570 states and 3243 transitions. [2022-10-15 17:09:49,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:49,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3243 transitions. [2022-10-15 17:09:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-10-15 17:09:49,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:49,114 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-15 17:09:49,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-10-15 17:09:49,115 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:49,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:49,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1600887189, now seen corresponding path program 1 times [2022-10-15 17:09:49,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:49,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738217383] [2022-10-15 17:09:49,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:49,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2022-10-15 17:09:49,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:49,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738217383] [2022-10-15 17:09:49,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738217383] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:49,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126971534] [2022-10-15 17:09:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:49,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:49,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:49,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:49,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 17:09:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:49,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:49,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2022-10-15 17:09:49,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:09:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2022-10-15 17:09:49,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126971534] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:09:49,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:09:49,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-15 17:09:49,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994349053] [2022-10-15 17:09:49,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:09:49,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:09:49,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:49,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:09:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:09:49,836 INFO L87 Difference]: Start difference. First operand 2570 states and 3243 transitions. Second operand has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:50,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:50,056 INFO L93 Difference]: Finished difference Result 1573 states and 1926 transitions. [2022-10-15 17:09:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:09:50,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 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 599 [2022-10-15 17:09:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:50,058 INFO L225 Difference]: With dead ends: 1573 [2022-10-15 17:09:50,058 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:09:50,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1204 GetRequests, 1196 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:09:50,060 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 119 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:50,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 398 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:09:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:09:50,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:09:50,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:09:50,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 599 [2022-10-15 17:09:50,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:50,062 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:09:50,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:50,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:09:50,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:09:50,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:09:50,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:09:50,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:50,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-15 17:09:50,287 INFO L444 BasicCegarLoop]: Path program 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] [2022-10-15 17:09:50,294 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:09:50,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:09:50 BoogieIcfgContainer [2022-10-15 17:09:50,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:09:50,304 INFO L158 Benchmark]: Toolchain (without parser) took 17934.23ms. Allocated memory was 151.0MB in the beginning and 323.0MB in the end (delta: 172.0MB). Free memory was 125.3MB in the beginning and 272.7MB in the end (delta: -147.4MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2022-10-15 17:09:50,307 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory was 122.4MB in the beginning and 122.3MB in the end (delta: 83.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:09:50,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.43ms. Allocated memory is still 151.0MB. Free memory was 125.2MB in the beginning and 109.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-15 17:09:50,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.74ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 106.6MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-15 17:09:50,308 INFO L158 Benchmark]: Boogie Preprocessor took 47.36ms. Allocated memory is still 151.0MB. Free memory was 106.6MB in the beginning and 104.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:09:50,308 INFO L158 Benchmark]: RCFGBuilder took 995.30ms. Allocated memory is still 151.0MB. Free memory was 104.3MB in the beginning and 100.7MB in the end (delta: 3.6MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-10-15 17:09:50,310 INFO L158 Benchmark]: TraceAbstraction took 16275.18ms. Allocated memory was 151.0MB in the beginning and 323.0MB in the end (delta: 172.0MB). Free memory was 99.7MB in the beginning and 272.7MB in the end (delta: -173.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:09:50,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory was 122.4MB in the beginning and 122.3MB in the end (delta: 83.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 537.43ms. Allocated memory is still 151.0MB. Free memory was 125.2MB in the beginning and 109.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.74ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 106.6MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.36ms. Allocated memory is still 151.0MB. Free memory was 106.6MB in the beginning and 104.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 995.30ms. Allocated memory is still 151.0MB. Free memory was 104.3MB in the beginning and 100.7MB in the end (delta: 3.6MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * TraceAbstraction took 16275.18ms. Allocated memory was 151.0MB in the beginning and 323.0MB in the end (delta: 172.0MB). Free memory was 99.7MB in the beginning and 272.7MB in the end (delta: -173.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 623]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 142 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 16.2s, OverallIterations: 35, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4835 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4835 mSDsluCounter, 10575 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3631 mSDsCounter, 993 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4330 IncrementalHoareTripleChecker+Invalid, 5323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 993 mSolverCounterUnsat, 6944 mSDtfsCounter, 4330 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3498 GetRequests, 3437 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4524occurred in iteration=28, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 35 MinimizatonAttempts, 6551 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 8790 NumberOfCodeBlocks, 8790 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 10239 ConstructedInterpolants, 0 QuantifiedInterpolants, 14257 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3100 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 44 InterpolantComputations, 31 PerfectInterpolantSequences, 34894/35202 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-15 17:09:50,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...