/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_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:09:24,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:09:24,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:09:24,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:09:24,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:09:24,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:09:24,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:09:24,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:09:24,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:09:24,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:09:24,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:09:24,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:09:24,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:09:24,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:09:24,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:09:24,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:09:24,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:09:24,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:09:24,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:09:24,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:09:24,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:09:24,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:09:24,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:09:24,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:09:24,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:09:24,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:09:24,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:09:24,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:09:24,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:09:24,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:09:24,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:09:24,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:09:24,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:09:24,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:09:24,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:09:24,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:09:24,847 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 17:09:24,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:09:24,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:09:24,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:09:24,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:09:24,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:09:24,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:09:24,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:09:24,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:09:24,881 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:09:24,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:09:24,882 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:09:24,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:09:24,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:09:24,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:09:24,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:09:24,883 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:09:24,883 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:09:24,884 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:09:24,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:09:24,884 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:09:24,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:09:24,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:09:24,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:09:24,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:09:24,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:09:24,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:24,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:09:24,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:09:24,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:09:24,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:09:24,888 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:09:25,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:09:25,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:09:25,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:09:25,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:09:25,368 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:09:25,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-10-15 17:09:25,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9450bedbb/41ddd7660b424bfe8d2437034335cf15/FLAG86d097d88 [2022-10-15 17:09:26,123 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:09:26,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-10-15 17:09:26,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9450bedbb/41ddd7660b424bfe8d2437034335cf15/FLAG86d097d88 [2022-10-15 17:09:26,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9450bedbb/41ddd7660b424bfe8d2437034335cf15 [2022-10-15 17:09:26,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:09:26,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:09:26,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:26,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:09:26,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:09:26,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aaf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26, skipping insertion in model container [2022-10-15 17:09:26,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:09:26,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:09:26,829 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_1b.cil.c[8244,8257] [2022-10-15 17:09:26,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:26,853 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:09:26,887 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_1b.cil.c[8244,8257] [2022-10-15 17:09:26,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:26,904 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:09:26,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26 WrapperNode [2022-10-15 17:09:26,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:26,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:26,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:09:26,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:09:26,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,946 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 75 [2022-10-15 17:09:26,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:26,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:09:26,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:09:26,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:09:26,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,971 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:09:26,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:09:26,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:09:26,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:09:26,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (1/1) ... [2022-10-15 17:09:26,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:27,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:27,018 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 17:09:27,038 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 17:09:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:09:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:09:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:09:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:09:27,160 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:09:27,163 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:09:27,347 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:09:27,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:09:27,362 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:09:27,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:09:27 BoogieIcfgContainer [2022-10-15 17:09:27,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:09:27,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:09:27,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:09:27,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:09:27,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:09:26" (1/3) ... [2022-10-15 17:09:27,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43947d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:09:27, skipping insertion in model container [2022-10-15 17:09:27,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:26" (2/3) ... [2022-10-15 17:09:27,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43947d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:09:27, skipping insertion in model container [2022-10-15 17:09:27,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:09:27" (3/3) ... [2022-10-15 17:09:27,397 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2022-10-15 17:09:27,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:09:27,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:09:27,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:09:27,513 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;@79474a19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:09:27,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:09:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 24 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 17:09:27,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:27,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 17:09:27,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash 28784130, now seen corresponding path program 1 times [2022-10-15 17:09:27,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:27,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884626537] [2022-10-15 17:09:27,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:27,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:27,852 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 17:09:27,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:27,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884626537] [2022-10-15 17:09:27,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884626537] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:27,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:27,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:09:27,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51521653] [2022-10-15 17:09:27,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:27,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:09:27,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:27,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:09:27,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:09:27,911 INFO L87 Difference]: Start difference. First operand has 25 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 24 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states 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 17:09:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:27,929 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2022-10-15 17:09:27,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:09:27,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-15 17:09:27,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:27,945 INFO L225 Difference]: With dead ends: 25 [2022-10-15 17:09:27,945 INFO L226 Difference]: Without dead ends: 23 [2022-10-15 17:09:27,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:09:27,955 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:27,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-15 17:09:27,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-15 17:09:27,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 22 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 17:09:27,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2022-10-15 17:09:27,997 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 35 transitions. Word has length 5 [2022-10-15 17:09:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:27,998 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 35 transitions. [2022-10-15 17:09:27,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states 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 17:09:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2022-10-15 17:09:27,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 17:09:27,999 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:27,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 17:09:27,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:09:28,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 28699838, now seen corresponding path program 1 times [2022-10-15 17:09:28,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641592551] [2022-10-15 17:09:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,081 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 17:09:28,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641592551] [2022-10-15 17:09:28,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641592551] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309200835] [2022-10-15 17:09:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,086 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states 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 17:09:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,135 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions. [2022-10-15 17:09:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-15 17:09:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,137 INFO L225 Difference]: With dead ends: 41 [2022-10-15 17:09:28,137 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 17:09:28,138 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 17:09:28,140 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 51 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 17:09:28,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2022-10-15 17:09:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 37 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 57 transitions. [2022-10-15 17:09:28,150 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 57 transitions. Word has length 5 [2022-10-15 17:09:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,151 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 57 transitions. [2022-10-15 17:09:28,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states 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 17:09:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2022-10-15 17:09:28,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:09:28,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,153 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:09:28,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1523322994, now seen corresponding path program 1 times [2022-10-15 17:09:28,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967150850] [2022-10-15 17:09:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:28,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967150850] [2022-10-15 17:09:28,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967150850] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294896076] [2022-10-15 17:09:28,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,220 INFO L87 Difference]: Start difference. First operand 38 states and 57 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 17:09:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,272 INFO L93 Difference]: Finished difference Result 54 states and 79 transitions. [2022-10-15 17:09:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-10-15 17:09:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,274 INFO L225 Difference]: With dead ends: 54 [2022-10-15 17:09:28,275 INFO L226 Difference]: Without dead ends: 54 [2022-10-15 17:09:28,275 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 17:09:28,277 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 71 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-15 17:09:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2022-10-15 17:09:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 50 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:28,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 77 transitions. [2022-10-15 17:09:28,288 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 77 transitions. Word has length 10 [2022-10-15 17:09:28,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,289 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 77 transitions. [2022-10-15 17:09:28,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 17:09:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2022-10-15 17:09:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:09:28,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:09:28,291 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1479473801, now seen corresponding path program 1 times [2022-10-15 17:09:28,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892242389] [2022-10-15 17:09:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,341 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 17:09:28,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892242389] [2022-10-15 17:09:28,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892242389] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580618876] [2022-10-15 17:09:28,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,345 INFO L87 Difference]: Start difference. First operand 51 states and 77 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 17:09:28,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,372 INFO L93 Difference]: Finished difference Result 48 states and 67 transitions. [2022-10-15 17:09:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-10-15 17:09:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,374 INFO L225 Difference]: With dead ends: 48 [2022-10-15 17:09:28,374 INFO L226 Difference]: Without dead ends: 48 [2022-10-15 17:09:28,375 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 17:09:28,377 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 50 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:28,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-15 17:09:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-10-15 17:09:28,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.5) internal successors, (66), 45 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:28,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2022-10-15 17:09:28,386 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 10 [2022-10-15 17:09:28,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,386 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2022-10-15 17:09:28,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 17:09:28,387 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2022-10-15 17:09:28,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 17:09:28,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,388 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:09:28,389 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1337214119, now seen corresponding path program 1 times [2022-10-15 17:09:28,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199334324] [2022-10-15 17:09:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:28,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199334324] [2022-10-15 17:09:28,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199334324] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824658256] [2022-10-15 17:09:28,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,463 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 17:09:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,494 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2022-10-15 17:09:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-10-15 17:09:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,496 INFO L225 Difference]: With dead ends: 56 [2022-10-15 17:09:28,497 INFO L226 Difference]: Without dead ends: 56 [2022-10-15 17:09:28,497 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 17:09:28,502 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:28,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-15 17:09:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2022-10-15 17:09:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 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 17:09:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2022-10-15 17:09:28,529 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 15 [2022-10-15 17:09:28,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,530 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2022-10-15 17:09:28,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 17:09:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2022-10-15 17:09:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 17:09:28,531 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,532 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:09:28,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash 657155749, now seen corresponding path program 1 times [2022-10-15 17:09:28,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045459432] [2022-10-15 17:09:28,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:28,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045459432] [2022-10-15 17:09:28,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045459432] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573105742] [2022-10-15 17:09:28,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,615 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 17:09:28,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,648 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2022-10-15 17:09:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-10-15 17:09:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,650 INFO L225 Difference]: With dead ends: 71 [2022-10-15 17:09:28,650 INFO L226 Difference]: Without dead ends: 71 [2022-10-15 17:09:28,654 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 17:09:28,658 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 44 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:28,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-15 17:09:28,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2022-10-15 17:09:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 64 states have (on average 1.359375) internal successors, (87), 65 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 17:09:28,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2022-10-15 17:09:28,675 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 15 [2022-10-15 17:09:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,676 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2022-10-15 17:09:28,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 17:09:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2022-10-15 17:09:28,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 17:09:28,677 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:09:28,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 163872022, now seen corresponding path program 1 times [2022-10-15 17:09:28,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427309203] [2022-10-15 17:09:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 17:09:28,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427309203] [2022-10-15 17:09:28,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427309203] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429219976] [2022-10-15 17:09:28,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,743 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 17:09:28,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,813 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2022-10-15 17:09:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 17 [2022-10-15 17:09:28,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,817 INFO L225 Difference]: With dead ends: 99 [2022-10-15 17:09:28,817 INFO L226 Difference]: Without dead ends: 99 [2022-10-15 17:09:28,817 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 17:09:28,819 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 66 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:28,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-15 17:09:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2022-10-15 17:09:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 92 states have (on average 1.358695652173913) internal successors, (125), 93 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 17:09:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 125 transitions. [2022-10-15 17:09:28,829 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 125 transitions. Word has length 17 [2022-10-15 17:09:28,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,830 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 125 transitions. [2022-10-15 17:09:28,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 17:09:28,830 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 125 transitions. [2022-10-15 17:09:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 17:09:28,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:09:28,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1432721775, now seen corresponding path program 1 times [2022-10-15 17:09:28,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35803101] [2022-10-15 17:09:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:28,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35803101] [2022-10-15 17:09:28,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35803101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905565380] [2022-10-15 17:09:28,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,878 INFO L87 Difference]: Start difference. First operand 94 states and 125 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 17:09:28,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,896 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2022-10-15 17:09:28,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-10-15 17:09:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,901 INFO L225 Difference]: With dead ends: 75 [2022-10-15 17:09:28,901 INFO L226 Difference]: Without dead ends: 75 [2022-10-15 17:09:28,902 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 17:09:28,906 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 67 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 17:09:28,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 67 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:28,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-15 17:09:28,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2022-10-15 17:09:28,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 71 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 17:09:28,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2022-10-15 17:09:28,920 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 19 [2022-10-15 17:09:28,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,921 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2022-10-15 17:09:28,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 17:09:28,922 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2022-10-15 17:09:28,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 17:09:28,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,924 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:09:28,925 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1464847913, now seen corresponding path program 1 times [2022-10-15 17:09:28,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728687920] [2022-10-15 17:09:28,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 17:09:29,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:29,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728687920] [2022-10-15 17:09:29,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728687920] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:29,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:29,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:29,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865136697] [2022-10-15 17:09:29,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:29,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:29,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:29,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:29,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:29,040 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states 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 17:09:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:29,081 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-10-15 17:09:29,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:29,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 20 [2022-10-15 17:09:29,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:29,084 INFO L225 Difference]: With dead ends: 57 [2022-10-15 17:09:29,084 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 17:09:29,084 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 17:09:29,089 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 17 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:29,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 32 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:29,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 17:09:29,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-15 17:09:29,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2022-10-15 17:09:29,103 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 20 [2022-10-15 17:09:29,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:29,104 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2022-10-15 17:09:29,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states 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 17:09:29,104 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-10-15 17:09:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 17:09:29,105 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:29,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:29,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:09:29,106 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1048807276, now seen corresponding path program 1 times [2022-10-15 17:09:29,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:29,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245756190] [2022-10-15 17:09:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:29,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 17:09:29,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:29,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245756190] [2022-10-15 17:09:29,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245756190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:29,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:29,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:29,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302491100] [2022-10-15 17:09:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:29,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:29,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:29,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:29,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:29,154 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 17:09:29,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:29,194 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2022-10-15 17:09:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:29,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 21 [2022-10-15 17:09:29,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:29,195 INFO L225 Difference]: With dead ends: 57 [2022-10-15 17:09:29,195 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 17:09:29,196 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 17:09:29,197 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:29,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 40 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:29,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 17:09:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2022-10-15 17:09:29,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 53 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:29,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2022-10-15 17:09:29,208 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 21 [2022-10-15 17:09:29,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:29,212 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2022-10-15 17:09:29,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 17:09:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2022-10-15 17:09:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 17:09:29,213 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:29,214 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:29,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:09:29,214 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:29,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:29,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1845640284, now seen corresponding path program 1 times [2022-10-15 17:09:29,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:29,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745835794] [2022-10-15 17:09:29,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:29,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:09:29,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:29,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745835794] [2022-10-15 17:09:29,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745835794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:29,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:29,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:29,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570246475] [2022-10-15 17:09:29,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:29,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:29,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:29,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:29,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:29,260 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 17:09:29,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:29,274 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2022-10-15 17:09:29,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:29,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 22 [2022-10-15 17:09:29,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:29,276 INFO L225 Difference]: With dead ends: 58 [2022-10-15 17:09:29,276 INFO L226 Difference]: Without dead ends: 58 [2022-10-15 17:09:29,276 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 17:09:29,277 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:29,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 54 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:29,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-15 17:09:29,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2022-10-15 17:09:29,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.037037037037037) internal successors, (56), 54 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2022-10-15 17:09:29,282 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 22 [2022-10-15 17:09:29,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:29,283 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2022-10-15 17:09:29,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 17:09:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2022-10-15 17:09:29,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 17:09:29,284 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:29,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:29,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:09:29,285 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:29,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:29,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1909673612, now seen corresponding path program 1 times [2022-10-15 17:09:29,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029852237] [2022-10-15 17:09:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:29,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:09:29,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:29,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029852237] [2022-10-15 17:09:29,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029852237] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:29,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:29,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:09:29,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145277699] [2022-10-15 17:09:29,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:29,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:29,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:29,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:29,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:29,375 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states 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 17:09:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:29,388 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2022-10-15 17:09:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:29,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 26 [2022-10-15 17:09:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:29,389 INFO L225 Difference]: With dead ends: 54 [2022-10-15 17:09:29,389 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:09:29,389 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 17:09:29,390 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:29,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 28 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:29,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:09:29,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:09:29,395 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 17:09:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:09:29,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-10-15 17:09:29,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:29,396 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:09:29,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states 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 17:09:29,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:09:29,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:09:29,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:09:29,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:09:29,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:09:29,405 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:29,408 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:09:29,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:09:29 BoogieIcfgContainer [2022-10-15 17:09:29,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:09:29,416 INFO L158 Benchmark]: Toolchain (without parser) took 2927.48ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 96.0MB in the end (delta: 29.5MB). Peak memory consumption was 30.2MB. Max. memory is 8.0GB. [2022-10-15 17:09:29,416 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:09:29,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.42ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 115.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 17:09:29,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.78ms. Allocated memory is still 151.0MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:09:29,418 INFO L158 Benchmark]: Boogie Preprocessor took 26.97ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 112.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:09:29,419 INFO L158 Benchmark]: RCFGBuilder took 396.60ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 101.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 17:09:29,419 INFO L158 Benchmark]: TraceAbstraction took 2037.14ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 96.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. [2022-10-15 17:09:29,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 406.42ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 115.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.78ms. Allocated memory is still 151.0MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.97ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 112.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 396.60ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 101.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2037.14ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 96.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.1MB. 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: 150]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 20]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 592 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 428 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=7, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 29 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 52/52 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 17:09:29,478 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...