/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_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:09:17,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:09:17,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:09:17,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:09:17,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:09:17,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:09:17,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:09:17,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:09:17,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:09:17,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:09:17,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:09:17,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:09:17,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:09:17,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:09:17,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:09:17,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:09:17,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:09:17,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:09:17,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:09:17,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:09:17,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:09:17,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:09:17,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:09:17,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:09:17,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:09:17,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:09:17,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:09:17,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:09:17,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:09:17,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:09:17,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:09:17,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:09:17,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:09:17,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:09:17,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:09:17,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:09:17,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:09:17,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:09:17,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:09:17,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:09:17,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:09:17,981 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 17:09:18,038 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:09:18,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:09:18,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:09:18,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:09:18,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:09:18,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:09:18,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:09:18,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:09:18,044 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:09:18,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:09:18,045 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:09:18,045 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:09:18,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:09:18,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:09:18,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:09:18,046 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:09:18,046 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:09:18,046 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:09:18,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:09:18,047 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:09:18,047 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:09:18,047 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:09:18,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:09:18,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:09:18,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:09:18,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:18,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:09:18,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:09:18,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:09:18,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:09:18,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:09:18,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:09:18,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:09:18,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:09:18,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:09:18,537 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:09:18,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2022-10-15 17:09:18,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c26e32699/db2df58f13ef447796cbc8bcd6e66e15/FLAG0be35bf37 [2022-10-15 17:09:19,322 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:09:19,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2022-10-15 17:09:19,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c26e32699/db2df58f13ef447796cbc8bcd6e66e15/FLAG0be35bf37 [2022-10-15 17:09:19,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c26e32699/db2df58f13ef447796cbc8bcd6e66e15 [2022-10-15 17:09:19,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:09:19,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:09:19,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:19,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:09:19,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:09:19,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:19" (1/1) ... [2022-10-15 17:09:19,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f8be4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:19, skipping insertion in model container [2022-10-15 17:09:19,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:19" (1/1) ... [2022-10-15 17:09:19,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:09:19,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:09:20,116 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_1.cil-2.c[43387,43400] [2022-10-15 17:09:20,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:20,131 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:09:20,190 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_1.cil-2.c[43387,43400] [2022-10-15 17:09:20,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:20,209 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:09:20,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20 WrapperNode [2022-10-15 17:09:20,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:20,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:20,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:09:20,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:09:20,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,280 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 549 [2022-10-15 17:09:20,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:20,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:09:20,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:09:20,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:09:20,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,328 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:09:20,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:09:20,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:09:20,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:09:20,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (1/1) ... [2022-10-15 17:09:20,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:20,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:20,403 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 17:09:20,409 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 17:09:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:09:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:09:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:09:20,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:09:20,694 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:09:20,697 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:09:20,723 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 17:09:21,386 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-10-15 17:09:21,387 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-10-15 17:09:21,387 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:09:21,397 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:09:21,398 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:09:21,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:09:21 BoogieIcfgContainer [2022-10-15 17:09:21,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:09:21,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:09:21,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:09:21,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:09:21,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:09:19" (1/3) ... [2022-10-15 17:09:21,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15eca8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:09:21, skipping insertion in model container [2022-10-15 17:09:21,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:20" (2/3) ... [2022-10-15 17:09:21,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15eca8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:09:21, skipping insertion in model container [2022-10-15 17:09:21,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:09:21" (3/3) ... [2022-10-15 17:09:21,412 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-2.c [2022-10-15 17:09:21,433 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:09:21,433 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:09:21,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:09:21,503 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;@160747cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:09:21,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:09:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 142 states have (on average 1.7183098591549295) internal successors, (244), 144 states have internal predecessors, (244), 0 states have call successors, (0), 0 states 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 17:09:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 17:09:21,518 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:21,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:21,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:21,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash 124420018, now seen corresponding path program 1 times [2022-10-15 17:09:21,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:21,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871764305] [2022-10-15 17:09:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:21,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:21,914 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 17:09:21,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:21,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871764305] [2022-10-15 17:09:21,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871764305] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:21,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:21,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:09:21,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986423118] [2022-10-15 17:09:21,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:21,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:21,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:21,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:21,980 INFO L87 Difference]: Start difference. First operand has 145 states, 142 states have (on average 1.7183098591549295) internal successors, (244), 144 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:22,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:22,047 INFO L93 Difference]: Finished difference Result 143 states and 239 transitions. [2022-10-15 17:09:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:22,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 17:09:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:22,065 INFO L225 Difference]: With dead ends: 143 [2022-10-15 17:09:22,065 INFO L226 Difference]: Without dead ends: 130 [2022-10-15 17:09:22,068 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 17:09:22,072 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 232 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:22,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 238 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:22,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-15 17:09:22,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-10-15 17:09:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.5426356589147288) internal successors, (199), 129 states have internal predecessors, (199), 0 states have call successors, (0), 0 states 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 17:09:22,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 199 transitions. [2022-10-15 17:09:22,130 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 199 transitions. Word has length 8 [2022-10-15 17:09:22,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:22,130 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 199 transitions. [2022-10-15 17:09:22,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:22,131 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 199 transitions. [2022-10-15 17:09:22,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 17:09:22,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:22,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:22,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:09:22,140 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:22,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:22,143 INFO L85 PathProgramCache]: Analyzing trace with hash -947483280, now seen corresponding path program 1 times [2022-10-15 17:09:22,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:22,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360105199] [2022-10-15 17:09:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:22,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:22,441 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 17:09:22,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:22,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360105199] [2022-10-15 17:09:22,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360105199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:22,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:22,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:22,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571538511] [2022-10-15 17:09:22,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:22,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:22,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:22,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:22,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:22,451 INFO L87 Difference]: Start difference. First operand 130 states and 199 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:22,747 INFO L93 Difference]: Finished difference Result 178 states and 285 transitions. [2022-10-15 17:09:22,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:22,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-15 17:09:22,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:22,751 INFO L225 Difference]: With dead ends: 178 [2022-10-15 17:09:22,751 INFO L226 Difference]: Without dead ends: 178 [2022-10-15 17:09:22,751 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 17:09:22,753 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 133 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:22,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 147 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:09:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-10-15 17:09:22,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2022-10-15 17:09:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.6257309941520468) internal successors, (278), 171 states have internal predecessors, (278), 0 states have call successors, (0), 0 states 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 17:09:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 278 transitions. [2022-10-15 17:09:22,777 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 278 transitions. Word has length 45 [2022-10-15 17:09:22,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:22,778 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 278 transitions. [2022-10-15 17:09:22,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:22,779 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 278 transitions. [2022-10-15 17:09:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 17:09:22,781 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:22,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:22,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:09:22,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:22,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:22,783 INFO L85 PathProgramCache]: Analyzing trace with hash 472840014, now seen corresponding path program 1 times [2022-10-15 17:09:22,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:22,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194984087] [2022-10-15 17:09:22,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:22,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:23,056 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 17:09:23,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:23,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194984087] [2022-10-15 17:09:23,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194984087] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:23,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:23,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:23,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644577024] [2022-10-15 17:09:23,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:23,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:23,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:23,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:23,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:23,061 INFO L87 Difference]: Start difference. First operand 172 states and 278 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 17:09:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:23,275 INFO L93 Difference]: Finished difference Result 221 states and 365 transitions. [2022-10-15 17:09:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:23,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-10-15 17:09:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:23,279 INFO L225 Difference]: With dead ends: 221 [2022-10-15 17:09:23,280 INFO L226 Difference]: Without dead ends: 219 [2022-10-15 17:09:23,280 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 17:09:23,282 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 132 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:23,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 147 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:09:23,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-10-15 17:09:23,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 213. [2022-10-15 17:09:23,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.6745283018867925) internal successors, (355), 212 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 17:09:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 355 transitions. [2022-10-15 17:09:23,303 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 355 transitions. Word has length 46 [2022-10-15 17:09:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:23,304 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 355 transitions. [2022-10-15 17:09:23,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 17:09:23,304 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 355 transitions. [2022-10-15 17:09:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 17:09:23,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:23,309 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:23,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:09:23,309 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:23,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:23,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1882217598, now seen corresponding path program 1 times [2022-10-15 17:09:23,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:23,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693450525] [2022-10-15 17:09:23,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:23,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:23,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:23,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693450525] [2022-10-15 17:09:23,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693450525] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:23,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:23,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:23,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854028103] [2022-10-15 17:09:23,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:23,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:23,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:23,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:23,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:23,570 INFO L87 Difference]: Start difference. First operand 213 states and 355 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:23,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:23,714 INFO L93 Difference]: Finished difference Result 244 states and 411 transitions. [2022-10-15 17:09:23,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:23,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 17:09:23,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:23,718 INFO L225 Difference]: With dead ends: 244 [2022-10-15 17:09:23,718 INFO L226 Difference]: Without dead ends: 244 [2022-10-15 17:09:23,719 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 17:09:23,732 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 138 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:23,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 159 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-10-15 17:09:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-10-15 17:09:23,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 1.691358024691358) internal successors, (411), 243 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 17:09:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 411 transitions. [2022-10-15 17:09:23,769 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 411 transitions. Word has length 74 [2022-10-15 17:09:23,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:23,773 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 411 transitions. [2022-10-15 17:09:23,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 411 transitions. [2022-10-15 17:09:23,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-15 17:09:23,781 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:23,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:23,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:09:23,782 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:23,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:23,783 INFO L85 PathProgramCache]: Analyzing trace with hash 273082035, now seen corresponding path program 1 times [2022-10-15 17:09:23,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:23,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461560169] [2022-10-15 17:09:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:23,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:23,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:23,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461560169] [2022-10-15 17:09:23,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461560169] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:23,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:23,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:23,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044923218] [2022-10-15 17:09:23,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:23,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:23,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:23,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:23,945 INFO L87 Difference]: Start difference. First operand 244 states and 411 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:24,097 INFO L93 Difference]: Finished difference Result 290 states and 491 transitions. [2022-10-15 17:09:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:24,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-10-15 17:09:24,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:24,102 INFO L225 Difference]: With dead ends: 290 [2022-10-15 17:09:24,102 INFO L226 Difference]: Without dead ends: 290 [2022-10-15 17:09:24,103 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 17:09:24,111 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 136 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:24,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 147 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:24,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-10-15 17:09:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2022-10-15 17:09:24,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.7052631578947368) internal successors, (486), 285 states have internal predecessors, (486), 0 states have call successors, (0), 0 states 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 17:09:24,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 486 transitions. [2022-10-15 17:09:24,134 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 486 transitions. Word has length 85 [2022-10-15 17:09:24,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:24,137 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 486 transitions. [2022-10-15 17:09:24,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 486 transitions. [2022-10-15 17:09:24,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-15 17:09:24,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:24,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:24,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:09:24,146 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash -189215496, now seen corresponding path program 1 times [2022-10-15 17:09:24,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:24,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045383401] [2022-10-15 17:09:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:24,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:24,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:24,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045383401] [2022-10-15 17:09:24,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045383401] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:24,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:24,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:24,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441735815] [2022-10-15 17:09:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:24,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:24,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:24,326 INFO L87 Difference]: Start difference. First operand 286 states and 486 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 17:09:24,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:24,458 INFO L93 Difference]: Finished difference Result 303 states and 510 transitions. [2022-10-15 17:09:24,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:24,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 86 [2022-10-15 17:09:24,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:24,461 INFO L225 Difference]: With dead ends: 303 [2022-10-15 17:09:24,461 INFO L226 Difference]: Without dead ends: 303 [2022-10-15 17:09:24,462 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 17:09:24,465 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 161 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:24,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 141 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-10-15 17:09:24,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2022-10-15 17:09:24,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.6933333333333334) internal successors, (508), 300 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 17:09:24,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 508 transitions. [2022-10-15 17:09:24,477 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 508 transitions. Word has length 86 [2022-10-15 17:09:24,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:24,477 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 508 transitions. [2022-10-15 17:09:24,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 17:09:24,478 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 508 transitions. [2022-10-15 17:09:24,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-15 17:09:24,481 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:24,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:24,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:09:24,482 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:24,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1661072911, now seen corresponding path program 1 times [2022-10-15 17:09:24,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:24,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811347937] [2022-10-15 17:09:24,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:09:24,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:24,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811347937] [2022-10-15 17:09:24,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811347937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:24,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:24,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:24,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789944595] [2022-10-15 17:09:24,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:24,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:24,690 INFO L87 Difference]: Start difference. First operand 301 states and 508 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 17:09:24,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:24,853 INFO L93 Difference]: Finished difference Result 305 states and 511 transitions. [2022-10-15 17:09:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:24,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-10-15 17:09:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:24,856 INFO L225 Difference]: With dead ends: 305 [2022-10-15 17:09:24,856 INFO L226 Difference]: Without dead ends: 303 [2022-10-15 17:09:24,857 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 17:09:24,858 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 134 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:24,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 145 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:24,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-10-15 17:09:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2022-10-15 17:09:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.6879194630872483) internal successors, (503), 298 states have internal predecessors, (503), 0 states have call successors, (0), 0 states 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 17:09:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 503 transitions. [2022-10-15 17:09:24,872 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 503 transitions. Word has length 86 [2022-10-15 17:09:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:24,873 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 503 transitions. [2022-10-15 17:09:24,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 17:09:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 503 transitions. [2022-10-15 17:09:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-15 17:09:24,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:24,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:24,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:09:24,881 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:24,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1734029471, now seen corresponding path program 1 times [2022-10-15 17:09:24,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:24,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961064990] [2022-10-15 17:09:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:24,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:25,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:25,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961064990] [2022-10-15 17:09:25,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961064990] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:25,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:25,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:25,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970883345] [2022-10-15 17:09:25,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:25,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:25,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:25,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:25,012 INFO L87 Difference]: Start difference. First operand 299 states and 503 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 17:09:25,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:25,117 INFO L93 Difference]: Finished difference Result 301 states and 501 transitions. [2022-10-15 17:09:25,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:25,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 87 [2022-10-15 17:09:25,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:25,120 INFO L225 Difference]: With dead ends: 301 [2022-10-15 17:09:25,120 INFO L226 Difference]: Without dead ends: 301 [2022-10-15 17:09:25,120 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 17:09:25,121 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 160 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:25,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 141 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:25,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-10-15 17:09:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2022-10-15 17:09:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.674496644295302) internal successors, (499), 298 states have internal predecessors, (499), 0 states have call successors, (0), 0 states 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 17:09:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 499 transitions. [2022-10-15 17:09:25,133 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 499 transitions. Word has length 87 [2022-10-15 17:09:25,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:25,133 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 499 transitions. [2022-10-15 17:09:25,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 17:09:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 499 transitions. [2022-10-15 17:09:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:09:25,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:25,136 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:25,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:09:25,137 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:25,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:25,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1834464481, now seen corresponding path program 1 times [2022-10-15 17:09:25,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:25,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317968648] [2022-10-15 17:09:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:25,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 17:09:25,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:25,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317968648] [2022-10-15 17:09:25,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317968648] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:25,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:25,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:25,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193636986] [2022-10-15 17:09:25,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:25,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:25,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:25,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:25,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:25,262 INFO L87 Difference]: Start difference. First operand 299 states and 499 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:25,352 INFO L93 Difference]: Finished difference Result 308 states and 505 transitions. [2022-10-15 17:09:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-10-15 17:09:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:25,355 INFO L225 Difference]: With dead ends: 308 [2022-10-15 17:09:25,355 INFO L226 Difference]: Without dead ends: 308 [2022-10-15 17:09:25,356 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 17:09:25,356 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 165 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:25,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 152 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:25,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-10-15 17:09:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2022-10-15 17:09:25,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.6449511400651466) internal successors, (505), 307 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 505 transitions. [2022-10-15 17:09:25,367 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 505 transitions. Word has length 100 [2022-10-15 17:09:25,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:25,368 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 505 transitions. [2022-10-15 17:09:25,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:25,368 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 505 transitions. [2022-10-15 17:09:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 17:09:25,370 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:25,370 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:25,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:09:25,371 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:25,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:25,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1347542277, now seen corresponding path program 1 times [2022-10-15 17:09:25,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:25,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133374440] [2022-10-15 17:09:25,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:25,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:25,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:25,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133374440] [2022-10-15 17:09:25,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133374440] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:25,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:25,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868362235] [2022-10-15 17:09:25,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:25,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:25,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:25,522 INFO L87 Difference]: Start difference. First operand 308 states and 505 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:25,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:25,644 INFO L93 Difference]: Finished difference Result 339 states and 554 transitions. [2022-10-15 17:09:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:25,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-10-15 17:09:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:25,647 INFO L225 Difference]: With dead ends: 339 [2022-10-15 17:09:25,648 INFO L226 Difference]: Without dead ends: 339 [2022-10-15 17:09:25,648 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 17:09:25,649 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 144 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:25,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 144 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:25,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-10-15 17:09:25,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-10-15 17:09:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.6428571428571428) internal successors, (552), 336 states have internal predecessors, (552), 0 states have call successors, (0), 0 states 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 17:09:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 552 transitions. [2022-10-15 17:09:25,662 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 552 transitions. Word has length 100 [2022-10-15 17:09:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:25,662 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 552 transitions. [2022-10-15 17:09:25,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:25,663 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 552 transitions. [2022-10-15 17:09:25,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:09:25,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:25,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:25,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:09:25,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:25,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:25,666 INFO L85 PathProgramCache]: Analyzing trace with hash -218926398, now seen corresponding path program 1 times [2022-10-15 17:09:25,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:25,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397806447] [2022-10-15 17:09:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:25,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:25,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:25,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397806447] [2022-10-15 17:09:25,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397806447] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:25,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:25,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:25,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108287380] [2022-10-15 17:09:25,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:25,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:25,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:25,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:25,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:25,784 INFO L87 Difference]: Start difference. First operand 337 states and 552 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:25,901 INFO L93 Difference]: Finished difference Result 339 states and 550 transitions. [2022-10-15 17:09:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:25,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-10-15 17:09:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:25,905 INFO L225 Difference]: With dead ends: 339 [2022-10-15 17:09:25,905 INFO L226 Difference]: Without dead ends: 339 [2022-10-15 17:09:25,905 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 17:09:25,906 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 143 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:25,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 144 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-10-15 17:09:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-10-15 17:09:25,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.630952380952381) internal successors, (548), 336 states have internal predecessors, (548), 0 states have call successors, (0), 0 states 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 17:09:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 548 transitions. [2022-10-15 17:09:25,917 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 548 transitions. Word has length 101 [2022-10-15 17:09:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:25,917 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 548 transitions. [2022-10-15 17:09:25,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 548 transitions. [2022-10-15 17:09:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-15 17:09:25,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:25,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:25,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:09:25,920 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash 253103787, now seen corresponding path program 1 times [2022-10-15 17:09:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:25,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104689845] [2022-10-15 17:09:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:26,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:26,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104689845] [2022-10-15 17:09:26,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104689845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:26,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:26,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:26,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113378804] [2022-10-15 17:09:26,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:26,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:26,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:26,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:26,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:26,048 INFO L87 Difference]: Start difference. First operand 337 states and 548 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 17:09:26,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:26,165 INFO L93 Difference]: Finished difference Result 372 states and 603 transitions. [2022-10-15 17:09:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:26,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-10-15 17:09:26,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:26,168 INFO L225 Difference]: With dead ends: 372 [2022-10-15 17:09:26,168 INFO L226 Difference]: Without dead ends: 372 [2022-10-15 17:09:26,168 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 17:09:26,169 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 146 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:26,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 152 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:26,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-10-15 17:09:26,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2022-10-15 17:09:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 363 states have (on average 1.6253443526170799) internal successors, (590), 363 states have internal predecessors, (590), 0 states have call successors, (0), 0 states 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 17:09:26,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 590 transitions. [2022-10-15 17:09:26,182 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 590 transitions. Word has length 102 [2022-10-15 17:09:26,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:26,182 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 590 transitions. [2022-10-15 17:09:26,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 17:09:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 590 transitions. [2022-10-15 17:09:26,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 17:09:26,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:26,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:26,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:09:26,186 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:26,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:26,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1231802386, now seen corresponding path program 1 times [2022-10-15 17:09:26,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:26,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392499518] [2022-10-15 17:09:26,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:26,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 17:09:26,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:26,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392499518] [2022-10-15 17:09:26,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392499518] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:26,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:26,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:26,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405924117] [2022-10-15 17:09:26,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:26,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:26,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:26,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:26,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:26,338 INFO L87 Difference]: Start difference. First operand 364 states and 590 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 17:09:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:26,481 INFO L93 Difference]: Finished difference Result 372 states and 598 transitions. [2022-10-15 17:09:26,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:26,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 103 [2022-10-15 17:09:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:26,485 INFO L225 Difference]: With dead ends: 372 [2022-10-15 17:09:26,485 INFO L226 Difference]: Without dead ends: 372 [2022-10-15 17:09:26,485 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 17:09:26,487 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 145 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:26,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 152 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-10-15 17:09:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2022-10-15 17:09:26,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 363 states have (on average 1.6115702479338843) internal successors, (585), 363 states have internal predecessors, (585), 0 states have call successors, (0), 0 states 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 17:09:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 585 transitions. [2022-10-15 17:09:26,504 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 585 transitions. Word has length 103 [2022-10-15 17:09:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:26,504 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 585 transitions. [2022-10-15 17:09:26,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 17:09:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 585 transitions. [2022-10-15 17:09:26,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-15 17:09:26,507 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:26,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:26,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:09:26,508 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:26,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:26,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1055170647, now seen corresponding path program 1 times [2022-10-15 17:09:26,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:26,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70425194] [2022-10-15 17:09:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:26,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-15 17:09:26,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:26,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70425194] [2022-10-15 17:09:26,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70425194] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:26,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:26,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955062030] [2022-10-15 17:09:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:26,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:26,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:26,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:26,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:26,655 INFO L87 Difference]: Start difference. First operand 364 states and 585 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:26,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:26,779 INFO L93 Difference]: Finished difference Result 389 states and 620 transitions. [2022-10-15 17:09:26,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:26,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-10-15 17:09:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:26,785 INFO L225 Difference]: With dead ends: 389 [2022-10-15 17:09:26,785 INFO L226 Difference]: Without dead ends: 389 [2022-10-15 17:09:26,786 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 17:09:26,787 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 152 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:26,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 147 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-10-15 17:09:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2022-10-15 17:09:26,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5989583333333333) internal successors, (614), 384 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 17:09:26,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 614 transitions. [2022-10-15 17:09:26,802 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 614 transitions. Word has length 106 [2022-10-15 17:09:26,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:26,802 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 614 transitions. [2022-10-15 17:09:26,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:26,803 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 614 transitions. [2022-10-15 17:09:26,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 17:09:26,805 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:26,805 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:26,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:09:26,805 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:26,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:26,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2125345872, now seen corresponding path program 1 times [2022-10-15 17:09:26,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:26,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639087951] [2022-10-15 17:09:26,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:26,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-15 17:09:26,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:26,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639087951] [2022-10-15 17:09:26,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639087951] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:26,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:26,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:26,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635491049] [2022-10-15 17:09:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:26,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:26,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:26,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:26,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:26,962 INFO L87 Difference]: Start difference. First operand 385 states and 614 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:27,070 INFO L93 Difference]: Finished difference Result 389 states and 614 transitions. [2022-10-15 17:09:27,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:27,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-10-15 17:09:27,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:27,074 INFO L225 Difference]: With dead ends: 389 [2022-10-15 17:09:27,074 INFO L226 Difference]: Without dead ends: 389 [2022-10-15 17:09:27,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:27,077 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 151 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:27,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 147 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:27,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-10-15 17:09:27,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2022-10-15 17:09:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5833333333333333) internal successors, (608), 384 states have internal predecessors, (608), 0 states have call successors, (0), 0 states 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 17:09:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 608 transitions. [2022-10-15 17:09:27,093 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 608 transitions. Word has length 107 [2022-10-15 17:09:27,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:27,093 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 608 transitions. [2022-10-15 17:09:27,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,094 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 608 transitions. [2022-10-15 17:09:27,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:09:27,096 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:27,096 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:27,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:09:27,097 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:27,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:27,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1817702491, now seen corresponding path program 1 times [2022-10-15 17:09:27,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:27,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753807836] [2022-10-15 17:09:27,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:27,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:09:27,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:27,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753807836] [2022-10-15 17:09:27,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753807836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:27,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:27,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:27,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571476601] [2022-10-15 17:09:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:27,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:27,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:27,181 INFO L87 Difference]: Start difference. First operand 385 states and 608 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:27,218 INFO L93 Difference]: Finished difference Result 716 states and 1128 transitions. [2022-10-15 17:09:27,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:27,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-10-15 17:09:27,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:27,224 INFO L225 Difference]: With dead ends: 716 [2022-10-15 17:09:27,225 INFO L226 Difference]: Without dead ends: 716 [2022-10-15 17:09:27,225 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 17:09:27,226 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 137 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 548 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 17:09:27,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 548 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:27,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-10-15 17:09:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-10-15 17:09:27,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.5776223776223777) internal successors, (1128), 715 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states 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 17:09:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1128 transitions. [2022-10-15 17:09:27,255 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1128 transitions. Word has length 122 [2022-10-15 17:09:27,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:27,255 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 1128 transitions. [2022-10-15 17:09:27,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1128 transitions. [2022-10-15 17:09:27,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:09:27,258 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:27,259 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:27,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:09:27,259 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:27,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash 231685351, now seen corresponding path program 1 times [2022-10-15 17:09:27,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:27,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854570032] [2022-10-15 17:09:27,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:27,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-15 17:09:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:27,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854570032] [2022-10-15 17:09:27,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854570032] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:27,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:27,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:27,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445506227] [2022-10-15 17:09:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:27,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:27,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:27,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:27,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:27,361 INFO L87 Difference]: Start difference. First operand 716 states and 1128 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 17:09:27,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:27,418 INFO L93 Difference]: Finished difference Result 1087 states and 1712 transitions. [2022-10-15 17:09:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:27,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-10-15 17:09:27,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:27,426 INFO L225 Difference]: With dead ends: 1087 [2022-10-15 17:09:27,426 INFO L226 Difference]: Without dead ends: 1087 [2022-10-15 17:09:27,427 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 17:09:27,427 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 134 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:27,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 547 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-10-15 17:09:27,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1087. [2022-10-15 17:09:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 1.576427255985267) internal successors, (1712), 1086 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states 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 17:09:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1712 transitions. [2022-10-15 17:09:27,462 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1712 transitions. Word has length 122 [2022-10-15 17:09:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:27,462 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 1712 transitions. [2022-10-15 17:09:27,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 17:09:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1712 transitions. [2022-10-15 17:09:27,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:09:27,466 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:27,467 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:27,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:09:27,467 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:27,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:27,468 INFO L85 PathProgramCache]: Analyzing trace with hash 58780327, now seen corresponding path program 1 times [2022-10-15 17:09:27,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:27,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820903302] [2022-10-15 17:09:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:27,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-15 17:09:27,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:27,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820903302] [2022-10-15 17:09:27,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820903302] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:27,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:27,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:27,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291210589] [2022-10-15 17:09:27,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:27,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:27,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:27,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:27,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:27,543 INFO L87 Difference]: Start difference. First operand 1087 states and 1712 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:27,587 INFO L93 Difference]: Finished difference Result 1458 states and 2296 transitions. [2022-10-15 17:09:27,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:27,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-10-15 17:09:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:27,598 INFO L225 Difference]: With dead ends: 1458 [2022-10-15 17:09:27,598 INFO L226 Difference]: Without dead ends: 1458 [2022-10-15 17:09:27,598 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 17:09:27,599 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 157 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 551 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 17:09:27,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 551 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:27,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2022-10-15 17:09:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2022-10-15 17:09:27,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 1.575840768702814) internal successors, (2296), 1457 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states 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 17:09:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 2296 transitions. [2022-10-15 17:09:27,648 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 2296 transitions. Word has length 122 [2022-10-15 17:09:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:27,648 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 2296 transitions. [2022-10-15 17:09:27,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 2296 transitions. [2022-10-15 17:09:27,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:09:27,653 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:27,654 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:27,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:09:27,654 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:27,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:27,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1448074341, now seen corresponding path program 1 times [2022-10-15 17:09:27,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:27,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984851206] [2022-10-15 17:09:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:27,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-10-15 17:09:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:27,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984851206] [2022-10-15 17:09:27,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984851206] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:27,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:27,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173667256] [2022-10-15 17:09:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:27,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:27,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:27,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:27,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:27,725 INFO L87 Difference]: Start difference. First operand 1458 states and 2296 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:27,762 INFO L93 Difference]: Finished difference Result 1811 states and 2849 transitions. [2022-10-15 17:09:27,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:27,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-10-15 17:09:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:27,774 INFO L225 Difference]: With dead ends: 1811 [2022-10-15 17:09:27,774 INFO L226 Difference]: Without dead ends: 1811 [2022-10-15 17:09:27,775 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 17:09:27,775 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 172 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 392 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 17:09:27,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 392 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2022-10-15 17:09:27,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811. [2022-10-15 17:09:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.5740331491712707) internal successors, (2849), 1810 states have internal predecessors, (2849), 0 states have call successors, (0), 0 states 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 17:09:27,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2849 transitions. [2022-10-15 17:09:27,838 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2849 transitions. Word has length 122 [2022-10-15 17:09:27,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:27,838 INFO L495 AbstractCegarLoop]: Abstraction has 1811 states and 2849 transitions. [2022-10-15 17:09:27,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:27,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2849 transitions. [2022-10-15 17:09:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-15 17:09:27,845 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:27,845 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:27,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:09:27,852 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:27,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:27,853 INFO L85 PathProgramCache]: Analyzing trace with hash -969992260, now seen corresponding path program 1 times [2022-10-15 17:09:27,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:27,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868097816] [2022-10-15 17:09:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:27,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-10-15 17:09:27,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:27,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868097816] [2022-10-15 17:09:27,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868097816] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:27,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:27,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:27,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700494714] [2022-10-15 17:09:27,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:27,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:27,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:27,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:27,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:27,986 INFO L87 Difference]: Start difference. First operand 1811 states and 2849 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states 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 17:09:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,132 INFO L93 Difference]: Finished difference Result 1861 states and 2837 transitions. [2022-10-15 17:09:28,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 200 [2022-10-15 17:09:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,144 INFO L225 Difference]: With dead ends: 1861 [2022-10-15 17:09:28,144 INFO L226 Difference]: Without dead ends: 1861 [2022-10-15 17:09:28,145 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 17:09:28,146 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 32 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 301 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:28,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2022-10-15 17:09:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1811. [2022-10-15 17:09:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.5342541436464088) internal successors, (2777), 1810 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states 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 17:09:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2777 transitions. [2022-10-15 17:09:28,218 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2777 transitions. Word has length 200 [2022-10-15 17:09:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,218 INFO L495 AbstractCegarLoop]: Abstraction has 1811 states and 2777 transitions. [2022-10-15 17:09:28,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states 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 17:09:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2777 transitions. [2022-10-15 17:09:28,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-15 17:09:28,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,230 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:09:28,230 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1149451039, now seen corresponding path program 1 times [2022-10-15 17:09:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13776475] [2022-10-15 17:09:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-10-15 17:09:28,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13776475] [2022-10-15 17:09:28,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13776475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198609958] [2022-10-15 17:09:28,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,396 INFO L87 Difference]: Start difference. First operand 1811 states and 2777 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 17:09:28,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,563 INFO L93 Difference]: Finished difference Result 1883 states and 2784 transitions. [2022-10-15 17:09:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 215 [2022-10-15 17:09:28,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,575 INFO L225 Difference]: With dead ends: 1883 [2022-10-15 17:09:28,575 INFO L226 Difference]: Without dead ends: 1883 [2022-10-15 17:09:28,575 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 17:09:28,576 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 155 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 168 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:28,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-10-15 17:09:28,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1811. [2022-10-15 17:09:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.4922651933701658) internal successors, (2701), 1810 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states 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 17:09:28,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2701 transitions. [2022-10-15 17:09:28,633 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2701 transitions. Word has length 215 [2022-10-15 17:09:28,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,634 INFO L495 AbstractCegarLoop]: Abstraction has 1811 states and 2701 transitions. [2022-10-15 17:09:28,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 17:09:28,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2701 transitions. [2022-10-15 17:09:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-10-15 17:09:28,641 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,642 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:09:28,642 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash 978401702, now seen corresponding path program 1 times [2022-10-15 17:09:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297723601] [2022-10-15 17:09:28,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-10-15 17:09:28,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:28,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297723601] [2022-10-15 17:09:28,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297723601] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:28,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:28,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:28,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250393613] [2022-10-15 17:09:28,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:28,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:28,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:28,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:28,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:28,769 INFO L87 Difference]: Start difference. First operand 1811 states and 2701 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:28,902 INFO L93 Difference]: Finished difference Result 1811 states and 2646 transitions. [2022-10-15 17:09:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:28,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-10-15 17:09:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:28,915 INFO L225 Difference]: With dead ends: 1811 [2022-10-15 17:09:28,915 INFO L226 Difference]: Without dead ends: 1811 [2022-10-15 17:09:28,916 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 17:09:28,917 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 15 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:28,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 306 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2022-10-15 17:09:28,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811. [2022-10-15 17:09:28,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.4618784530386741) internal successors, (2646), 1810 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states 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 17:09:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2646 transitions. [2022-10-15 17:09:28,967 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2646 transitions. Word has length 243 [2022-10-15 17:09:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:28,968 INFO L495 AbstractCegarLoop]: Abstraction has 1811 states and 2646 transitions. [2022-10-15 17:09:28,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2646 transitions. [2022-10-15 17:09:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-10-15 17:09:28,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:28,976 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:28,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 17:09:28,976 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:28,977 INFO L85 PathProgramCache]: Analyzing trace with hash -904430186, now seen corresponding path program 1 times [2022-10-15 17:09:28,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:28,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790683681] [2022-10-15 17:09:28,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:28,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-15 17:09:29,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:29,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790683681] [2022-10-15 17:09:29,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790683681] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:29,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:29,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:29,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614519927] [2022-10-15 17:09:29,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:29,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:29,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:29,120 INFO L87 Difference]: Start difference. First operand 1811 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:29,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:29,165 INFO L93 Difference]: Finished difference Result 3518 states and 5125 transitions. [2022-10-15 17:09:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:29,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2022-10-15 17:09:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:29,187 INFO L225 Difference]: With dead ends: 3518 [2022-10-15 17:09:29,187 INFO L226 Difference]: Without dead ends: 3518 [2022-10-15 17:09:29,187 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 17:09:29,188 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 124 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 549 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 17:09:29,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 549 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:29,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2022-10-15 17:09:29,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 3516. [2022-10-15 17:09:29,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3516 states, 3515 states have (on average 1.4577524893314366) internal successors, (5124), 3515 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states 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 17:09:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3516 states to 3516 states and 5124 transitions. [2022-10-15 17:09:29,309 INFO L78 Accepts]: Start accepts. Automaton has 3516 states and 5124 transitions. Word has length 272 [2022-10-15 17:09:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:29,310 INFO L495 AbstractCegarLoop]: Abstraction has 3516 states and 5124 transitions. [2022-10-15 17:09:29,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:29,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3516 states and 5124 transitions. [2022-10-15 17:09:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-10-15 17:09:29,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:29,329 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:29,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-15 17:09:29,329 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:29,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:29,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1940271524, now seen corresponding path program 1 times [2022-10-15 17:09:29,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:29,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844895778] [2022-10-15 17:09:29,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:29,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 525 proven. 66 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-10-15 17:09:29,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:29,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844895778] [2022-10-15 17:09:29,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844895778] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:29,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190919627] [2022-10-15 17:09:29,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:29,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:29,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:29,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:29,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:09:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:29,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:09:29,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 497 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-10-15 17:09:30,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:09:30,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190919627] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:30,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:09:30,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 17:09:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473607943] [2022-10-15 17:09:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:30,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:30,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:30,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:30,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:30,282 INFO L87 Difference]: Start difference. First operand 3516 states and 5124 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 17:09:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:30,341 INFO L93 Difference]: Finished difference Result 4262 states and 6215 transitions. [2022-10-15 17:09:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:30,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 309 [2022-10-15 17:09:30,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:30,368 INFO L225 Difference]: With dead ends: 4262 [2022-10-15 17:09:30,368 INFO L226 Difference]: Without dead ends: 4262 [2022-10-15 17:09:30,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:30,375 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 132 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:30,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 364 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:30,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4262 states. [2022-10-15 17:09:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4262 to 4262. [2022-10-15 17:09:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4262 states, 4261 states have (on average 1.458577798638817) internal successors, (6215), 4261 states have internal predecessors, (6215), 0 states have call successors, (0), 0 states 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 17:09:30,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4262 states to 4262 states and 6215 transitions. [2022-10-15 17:09:30,532 INFO L78 Accepts]: Start accepts. Automaton has 4262 states and 6215 transitions. Word has length 309 [2022-10-15 17:09:30,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:30,533 INFO L495 AbstractCegarLoop]: Abstraction has 4262 states and 6215 transitions. [2022-10-15 17:09:30,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 17:09:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4262 states and 6215 transitions. [2022-10-15 17:09:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-10-15 17:09:30,549 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:30,550 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:30,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:30,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-10-15 17:09:30,764 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:30,766 INFO L85 PathProgramCache]: Analyzing trace with hash 809426729, now seen corresponding path program 1 times [2022-10-15 17:09:30,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:30,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419267658] [2022-10-15 17:09:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:30,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 848 proven. 66 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-10-15 17:09:31,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:31,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419267658] [2022-10-15 17:09:31,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419267658] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:31,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917662283] [2022-10-15 17:09:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:31,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:31,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:31,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:31,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:09:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:31,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:09:31,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 859 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2022-10-15 17:09:31,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:09:31,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917662283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:31,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:09:31,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 17:09:31,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158564407] [2022-10-15 17:09:31,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:31,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:31,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:31,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:31,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:31,333 INFO L87 Difference]: Start difference. First operand 4262 states and 6215 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 17:09:31,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:31,533 INFO L93 Difference]: Finished difference Result 4730 states and 6731 transitions. [2022-10-15 17:09:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:31,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 380 [2022-10-15 17:09:31,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:31,550 INFO L225 Difference]: With dead ends: 4730 [2022-10-15 17:09:31,550 INFO L226 Difference]: Without dead ends: 2860 [2022-10-15 17:09:31,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:31,551 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 30 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:31,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 302 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:09:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2022-10-15 17:09:31,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 2860. [2022-10-15 17:09:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2859 states have (on average 1.4379153550192374) internal successors, (4111), 2859 states have internal predecessors, (4111), 0 states have call successors, (0), 0 states 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 17:09:31,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4111 transitions. [2022-10-15 17:09:31,659 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4111 transitions. Word has length 380 [2022-10-15 17:09:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:31,660 INFO L495 AbstractCegarLoop]: Abstraction has 2860 states and 4111 transitions. [2022-10-15 17:09:31,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 17:09:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4111 transitions. [2022-10-15 17:09:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-10-15 17:09:31,675 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:31,677 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:31,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-15 17:09:31,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-15 17:09:31,890 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:31,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:31,891 INFO L85 PathProgramCache]: Analyzing trace with hash -806194589, now seen corresponding path program 1 times [2022-10-15 17:09:31,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:31,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379709152] [2022-10-15 17:09:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:31,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-10-15 17:09:32,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:32,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379709152] [2022-10-15 17:09:32,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379709152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:32,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:32,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:32,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725942800] [2022-10-15 17:09:32,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:32,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:32,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:32,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:32,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:32,058 INFO L87 Difference]: Start difference. First operand 2860 states and 4111 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 17:09:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:32,172 INFO L93 Difference]: Finished difference Result 3007 states and 4291 transitions. [2022-10-15 17:09:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 381 [2022-10-15 17:09:32,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:32,183 INFO L225 Difference]: With dead ends: 3007 [2022-10-15 17:09:32,183 INFO L226 Difference]: Without dead ends: 3007 [2022-10-15 17:09:32,184 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 17:09:32,184 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 13 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:32,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 311 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2022-10-15 17:09:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2975. [2022-10-15 17:09:32,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2974 states have (on average 1.429388029589778) internal successors, (4251), 2974 states have internal predecessors, (4251), 0 states have call successors, (0), 0 states 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 17:09:32,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 4251 transitions. [2022-10-15 17:09:32,259 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 4251 transitions. Word has length 381 [2022-10-15 17:09:32,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:32,259 INFO L495 AbstractCegarLoop]: Abstraction has 2975 states and 4251 transitions. [2022-10-15 17:09:32,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 17:09:32,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 4251 transitions. [2022-10-15 17:09:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-10-15 17:09:32,271 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:32,272 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:32,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-15 17:09:32,272 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash 588994465, now seen corresponding path program 1 times [2022-10-15 17:09:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:32,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144528370] [2022-10-15 17:09:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:32,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-10-15 17:09:32,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:32,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144528370] [2022-10-15 17:09:32,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144528370] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:32,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:32,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:32,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460154798] [2022-10-15 17:09:32,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:32,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:32,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:32,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:32,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:32,414 INFO L87 Difference]: Start difference. First operand 2975 states and 4251 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:32,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:32,545 INFO L93 Difference]: Finished difference Result 3279 states and 4659 transitions. [2022-10-15 17:09:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:32,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2022-10-15 17:09:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:32,555 INFO L225 Difference]: With dead ends: 3279 [2022-10-15 17:09:32,555 INFO L226 Difference]: Without dead ends: 3279 [2022-10-15 17:09:32,556 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 17:09:32,557 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 29 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:32,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 311 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-10-15 17:09:32,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3175. [2022-10-15 17:09:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 3174 states have (on average 1.4149338374291116) internal successors, (4491), 3174 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states 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 17:09:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4491 transitions. [2022-10-15 17:09:32,635 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4491 transitions. Word has length 402 [2022-10-15 17:09:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:32,635 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 4491 transitions. [2022-10-15 17:09:32,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4491 transitions. [2022-10-15 17:09:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-10-15 17:09:32,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:32,650 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:32,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-15 17:09:32,650 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:32,651 INFO L85 PathProgramCache]: Analyzing trace with hash 434686614, now seen corresponding path program 1 times [2022-10-15 17:09:32,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:32,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665102601] [2022-10-15 17:09:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:32,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 761 proven. 0 refuted. 0 times theorem prover too weak. 1039 trivial. 0 not checked. [2022-10-15 17:09:32,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:32,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665102601] [2022-10-15 17:09:32,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665102601] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:32,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:32,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:32,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268206331] [2022-10-15 17:09:32,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:32,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:32,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:32,828 INFO L87 Difference]: Start difference. First operand 3175 states and 4491 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:32,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:32,964 INFO L93 Difference]: Finished difference Result 3239 states and 4515 transitions. [2022-10-15 17:09:32,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:32,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 428 [2022-10-15 17:09:32,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:32,973 INFO L225 Difference]: With dead ends: 3239 [2022-10-15 17:09:32,973 INFO L226 Difference]: Without dead ends: 3239 [2022-10-15 17:09:32,974 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 17:09:32,975 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 19 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:32,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 310 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2022-10-15 17:09:33,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 3175. [2022-10-15 17:09:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 3174 states have (on average 1.3897290485192186) internal successors, (4411), 3174 states have internal predecessors, (4411), 0 states have call successors, (0), 0 states 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 17:09:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4411 transitions. [2022-10-15 17:09:33,045 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4411 transitions. Word has length 428 [2022-10-15 17:09:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:33,046 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 4411 transitions. [2022-10-15 17:09:33,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:33,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4411 transitions. [2022-10-15 17:09:33,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-10-15 17:09:33,060 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:33,060 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:33,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-15 17:09:33,061 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:33,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:33,062 INFO L85 PathProgramCache]: Analyzing trace with hash -785344079, now seen corresponding path program 1 times [2022-10-15 17:09:33,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:33,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78906362] [2022-10-15 17:09:33,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:33,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-10-15 17:09:33,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:33,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78906362] [2022-10-15 17:09:33,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78906362] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:33,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313932987] [2022-10-15 17:09:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:33,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:33,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:33,294 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:33,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:09:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:33,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:33,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 867 proven. 0 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2022-10-15 17:09:33,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:09:33,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313932987] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:33,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:09:33,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 17:09:33,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175959511] [2022-10-15 17:09:33,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:33,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:33,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:34,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:34,004 INFO L87 Difference]: Start difference. First operand 3175 states and 4411 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:34,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:34,034 INFO L93 Difference]: Finished difference Result 3081 states and 4267 transitions. [2022-10-15 17:09:34,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:34,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 447 [2022-10-15 17:09:34,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:34,043 INFO L225 Difference]: With dead ends: 3081 [2022-10-15 17:09:34,043 INFO L226 Difference]: Without dead ends: 3081 [2022-10-15 17:09:34,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:09:34,045 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 101 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:34,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 532 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:09:34,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2022-10-15 17:09:34,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 2395. [2022-10-15 17:09:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 2394 states have (on average 1.3893065998329157) internal successors, (3326), 2394 states have internal predecessors, (3326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3326 transitions. [2022-10-15 17:09:34,112 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3326 transitions. Word has length 447 [2022-10-15 17:09:34,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:34,113 INFO L495 AbstractCegarLoop]: Abstraction has 2395 states and 3326 transitions. [2022-10-15 17:09:34,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3326 transitions. [2022-10-15 17:09:34,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-10-15 17:09:34,128 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:34,128 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:34,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:34,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-15 17:09:34,343 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:34,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash -708443281, now seen corresponding path program 1 times [2022-10-15 17:09:34,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:34,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392840437] [2022-10-15 17:09:34,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:34,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-10-15 17:09:34,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:34,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392840437] [2022-10-15 17:09:34,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392840437] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:34,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067553195] [2022-10-15 17:09:34,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:34,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:34,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:34,592 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:34,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:09:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:34,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:34,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-10-15 17:09:34,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:09:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-10-15 17:09:35,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067553195] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:09:35,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:09:35,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 17:09:35,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363624720] [2022-10-15 17:09:35,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:09:35,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:09:35,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:35,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:09:35,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:09:35,020 INFO L87 Difference]: Start difference. First operand 2395 states and 3326 transitions. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:35,428 INFO L93 Difference]: Finished difference Result 3489 states and 4702 transitions. [2022-10-15 17:09:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:09:35,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 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 447 [2022-10-15 17:09:35,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:35,435 INFO L225 Difference]: With dead ends: 3489 [2022-10-15 17:09:35,436 INFO L226 Difference]: Without dead ends: 3360 [2022-10-15 17:09:35,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 894 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:09:35,437 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 456 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:35,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 528 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:09:35,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2022-10-15 17:09:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 2356. [2022-10-15 17:09:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2355 states have (on average 1.367728237791932) internal successors, (3221), 2355 states have internal predecessors, (3221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3221 transitions. [2022-10-15 17:09:35,525 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3221 transitions. Word has length 447 [2022-10-15 17:09:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:35,526 INFO L495 AbstractCegarLoop]: Abstraction has 2356 states and 3221 transitions. [2022-10-15 17:09:35,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3221 transitions. [2022-10-15 17:09:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-10-15 17:09:35,534 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:35,535 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:35,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:35,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:35,750 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:35,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:35,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1730115607, now seen corresponding path program 1 times [2022-10-15 17:09:35,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:35,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700291302] [2022-10-15 17:09:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:35,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:35,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4105 backedges. 1530 proven. 0 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2022-10-15 17:09:35,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:35,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700291302] [2022-10-15 17:09:35,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700291302] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:35,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:35,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44644538] [2022-10-15 17:09:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:35,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:35,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:35,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:35,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:35,981 INFO L87 Difference]: Start difference. First operand 2356 states and 3221 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:36,092 INFO L93 Difference]: Finished difference Result 2368 states and 3173 transitions. [2022-10-15 17:09:36,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:36,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 622 [2022-10-15 17:09:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:36,098 INFO L225 Difference]: With dead ends: 2368 [2022-10-15 17:09:36,099 INFO L226 Difference]: Without dead ends: 2368 [2022-10-15 17:09:36,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,100 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:36,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 298 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-10-15 17:09:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2356. [2022-10-15 17:09:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2355 states have (on average 1.3422505307855626) internal successors, (3161), 2355 states have internal predecessors, (3161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3161 transitions. [2022-10-15 17:09:36,146 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3161 transitions. Word has length 622 [2022-10-15 17:09:36,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:36,147 INFO L495 AbstractCegarLoop]: Abstraction has 2356 states and 3161 transitions. [2022-10-15 17:09:36,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3161 transitions. [2022-10-15 17:09:36,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-10-15 17:09:36,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:36,157 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 12, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:36,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-15 17:09:36,157 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:36,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:36,158 INFO L85 PathProgramCache]: Analyzing trace with hash 264105968, now seen corresponding path program 1 times [2022-10-15 17:09:36,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:36,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443024722] [2022-10-15 17:09:36,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:36,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:36,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4562 backedges. 2170 proven. 0 refuted. 0 times theorem prover too weak. 2392 trivial. 0 not checked. [2022-10-15 17:09:36,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:36,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443024722] [2022-10-15 17:09:36,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443024722] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:36,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:36,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:36,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121820061] [2022-10-15 17:09:36,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:36,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:36,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:36,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:36,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,390 INFO L87 Difference]: Start difference. First operand 2356 states and 3161 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:36,512 INFO L93 Difference]: Finished difference Result 2572 states and 3407 transitions. [2022-10-15 17:09:36,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:36,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 656 [2022-10-15 17:09:36,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:36,519 INFO L225 Difference]: With dead ends: 2572 [2022-10-15 17:09:36,520 INFO L226 Difference]: Without dead ends: 2572 [2022-10-15 17:09:36,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,521 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:36,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 296 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:36,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2022-10-15 17:09:36,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2560. [2022-10-15 17:09:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 2559 states have (on average 1.3266901133255178) internal successors, (3395), 2559 states have internal predecessors, (3395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3395 transitions. [2022-10-15 17:09:36,598 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3395 transitions. Word has length 656 [2022-10-15 17:09:36,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:36,598 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 3395 transitions. [2022-10-15 17:09:36,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:36,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3395 transitions. [2022-10-15 17:09:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-10-15 17:09:36,614 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:36,614 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 18, 18, 15, 12, 12, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:36,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-15 17:09:36,615 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:36,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash -951624686, now seen corresponding path program 1 times [2022-10-15 17:09:36,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:36,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593973897] [2022-10-15 17:09:36,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:36,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6176 backedges. 2953 proven. 0 refuted. 0 times theorem prover too weak. 3223 trivial. 0 not checked. [2022-10-15 17:09:36,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:36,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593973897] [2022-10-15 17:09:36,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593973897] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:09:36,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:09:36,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:09:36,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025690889] [2022-10-15 17:09:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:09:36,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:09:36,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:36,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:09:36,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:36,943 INFO L87 Difference]: Start difference. First operand 2560 states and 3395 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:37,065 INFO L93 Difference]: Finished difference Result 2788 states and 3653 transitions. [2022-10-15 17:09:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:09:37,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 749 [2022-10-15 17:09:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:37,072 INFO L225 Difference]: With dead ends: 2788 [2022-10-15 17:09:37,072 INFO L226 Difference]: Without dead ends: 2788 [2022-10-15 17:09:37,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:09:37,073 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:37,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 296 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:09:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2022-10-15 17:09:37,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2776. [2022-10-15 17:09:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2775 states have (on average 1.312072072072072) internal successors, (3641), 2775 states have internal predecessors, (3641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 3641 transitions. [2022-10-15 17:09:37,127 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 3641 transitions. Word has length 749 [2022-10-15 17:09:37,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:37,127 INFO L495 AbstractCegarLoop]: Abstraction has 2776 states and 3641 transitions. [2022-10-15 17:09:37,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 3641 transitions. [2022-10-15 17:09:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2022-10-15 17:09:37,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:09:37,142 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 18, 15, 15, 12, 12, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:37,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-15 17:09:37,143 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:09:37,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:09:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1071625077, now seen corresponding path program 1 times [2022-10-15 17:09:37,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:09:37,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482057263] [2022-10-15 17:09:37,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:37,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:09:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 4746 proven. 26 refuted. 0 times theorem prover too weak. 3339 trivial. 0 not checked. [2022-10-15 17:09:37,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:09:37,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482057263] [2022-10-15 17:09:37,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482057263] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:09:37,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501499219] [2022-10-15 17:09:37,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:09:37,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:09:37,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:37,694 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:09:37,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 17:09:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:09:37,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 17:09:37,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:09:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 4746 proven. 26 refuted. 0 times theorem prover too weak. 3339 trivial. 0 not checked. [2022-10-15 17:09:38,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:09:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 4746 proven. 26 refuted. 0 times theorem prover too weak. 3339 trivial. 0 not checked. [2022-10-15 17:09:38,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501499219] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:09:38,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:09:38,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-15 17:09:38,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745809011] [2022-10-15 17:09:38,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:09:38,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:09:38,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:09:38,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:09:38,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:09:38,172 INFO L87 Difference]: Start difference. First operand 2776 states and 3641 transitions. Second operand has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:38,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:09:38,594 INFO L93 Difference]: Finished difference Result 2381 states and 3094 transitions. [2022-10-15 17:09:38,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:09:38,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 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 848 [2022-10-15 17:09:38,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:09:38,596 INFO L225 Difference]: With dead ends: 2381 [2022-10-15 17:09:38,596 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:09:38,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1704 GetRequests, 1695 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:09:38,597 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 216 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:09:38,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 951 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:09:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:09:38,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:09:38,598 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 17:09:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:09:38,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 848 [2022-10-15 17:09:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:09:38,599 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:09:38,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:09:38,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:09:38,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:09:38,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:09:38,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:09:38,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 17:09:38,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-10-15 17:09:38,824 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:09:38,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:09:38,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:09:38 BoogieIcfgContainer [2022-10-15 17:09:38,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:09:38,833 INFO L158 Benchmark]: Toolchain (without parser) took 19218.70ms. Allocated memory was 164.6MB in the beginning and 422.6MB in the end (delta: 257.9MB). Free memory was 137.2MB in the beginning and 242.6MB in the end (delta: -105.4MB). Peak memory consumption was 153.2MB. Max. memory is 8.0GB. [2022-10-15 17:09:38,834 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 164.6MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:09:38,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.07ms. Allocated memory is still 164.6MB. Free memory was 137.0MB in the beginning and 121.9MB in the end (delta: 15.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-15 17:09:38,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.27ms. Allocated memory is still 164.6MB. Free memory was 121.8MB in the beginning and 119.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:09:38,835 INFO L158 Benchmark]: Boogie Preprocessor took 55.81ms. Allocated memory is still 164.6MB. Free memory was 119.0MB in the beginning and 116.7MB in the end (delta: 2.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-15 17:09:38,835 INFO L158 Benchmark]: RCFGBuilder took 1063.16ms. Allocated memory is still 164.6MB. Free memory was 116.6MB in the beginning and 129.8MB in the end (delta: -13.2MB). Peak memory consumption was 23.8MB. Max. memory is 8.0GB. [2022-10-15 17:09:38,835 INFO L158 Benchmark]: TraceAbstraction took 17428.83ms. Allocated memory was 164.6MB in the beginning and 422.6MB in the end (delta: 257.9MB). Free memory was 129.3MB in the beginning and 242.6MB in the end (delta: -113.3MB). Peak memory consumption was 144.1MB. Max. memory is 8.0GB. [2022-10-15 17:09:38,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 164.6MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 587.07ms. Allocated memory is still 164.6MB. Free memory was 137.0MB in the beginning and 121.9MB in the end (delta: 15.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.27ms. Allocated memory is still 164.6MB. Free memory was 121.8MB in the beginning and 119.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.81ms. Allocated memory is still 164.6MB. Free memory was 119.0MB in the beginning and 116.7MB in the end (delta: 2.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1063.16ms. Allocated memory is still 164.6MB. Free memory was 116.6MB in the beginning and 129.8MB in the end (delta: -13.2MB). Peak memory consumption was 23.8MB. Max. memory is 8.0GB. * TraceAbstraction took 17428.83ms. Allocated memory was 164.6MB in the beginning and 422.6MB in the end (delta: 257.9MB). Free memory was 129.3MB in the beginning and 242.6MB in the end (delta: -113.3MB). Peak memory consumption was 144.1MB. 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: 630]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 633]: 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, 145 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 34, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4227 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4227 mSDsluCounter, 10164 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3475 mSDsCounter, 966 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3536 IncrementalHoareTripleChecker+Invalid, 4502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 966 mSolverCounterUnsat, 6689 mSDtfsCounter, 3536 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3837 GetRequests, 3784 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4262occurred in iteration=24, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 34 MinimizatonAttempts, 2102 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 10754 NumberOfCodeBlocks, 10754 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 12008 ConstructedInterpolants, 0 QuantifiedInterpolants, 16225 SizeOfPredicates, 2 NumberOfNonLiveVariables, 3875 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 41 InterpolantComputations, 32 PerfectInterpolantSequences, 61230/61544 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 17:09:38,894 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...