./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75fd132a1a39ad1f2927845122893235fdf65fe2225472c79a2e84525dcd60fe --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 06:43:33,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 06:43:33,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 06:43:33,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 06:43:33,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 06:43:33,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 06:43:33,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 06:43:33,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 06:43:33,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 06:43:33,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 06:43:33,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 06:43:33,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 06:43:33,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 06:43:33,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 06:43:33,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 06:43:33,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 06:43:33,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 06:43:33,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 06:43:33,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 06:43:33,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 06:43:33,954 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 06:43:33,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 06:43:33,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 06:43:33,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 06:43:33,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 06:43:33,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 06:43:33,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 06:43:33,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 06:43:33,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 06:43:33,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 06:43:33,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 06:43:33,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 06:43:33,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 06:43:33,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 06:43:33,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 06:43:33,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 06:43:33,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 06:43:33,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 06:43:33,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 06:43:33,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 06:43:33,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 06:43:33,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 06:43:33,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-23 06:43:33,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 06:43:33,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 06:43:33,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 06:43:33,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 06:43:33,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 06:43:33,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 06:43:33,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 06:43:33,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 06:43:33,996 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 06:43:33,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 06:43:33,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 06:43:33,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 06:43:33,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 06:43:33,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 06:43:33,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 06:43:33,998 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-23 06:43:33,998 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-23 06:43:33,998 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-23 06:43:33,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 06:43:33,998 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 06:43:33,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 06:43:33,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 06:43:33,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 06:43:33,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 06:43:33,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 06:43:33,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 06:43:33,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 06:43:34,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 06:43:34,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 06:43:34,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 06:43:34,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75fd132a1a39ad1f2927845122893235fdf65fe2225472c79a2e84525dcd60fe [2022-07-23 06:43:34,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 06:43:34,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 06:43:34,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 06:43:34,184 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 06:43:34,184 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 06:43:34,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c [2022-07-23 06:43:34,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a3f026d/0e3f28394c034723ae7754d4754476e6/FLAGdd02be7d8 [2022-07-23 06:43:34,656 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 06:43:34,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c [2022-07-23 06:43:34,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a3f026d/0e3f28394c034723ae7754d4754476e6/FLAGdd02be7d8 [2022-07-23 06:43:35,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a3f026d/0e3f28394c034723ae7754d4754476e6 [2022-07-23 06:43:35,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 06:43:35,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 06:43:35,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 06:43:35,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 06:43:35,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 06:43:35,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5a6d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35, skipping insertion in model container [2022-07-23 06:43:35,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 06:43:35,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 06:43:35,182 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/ntdrivers-simplified/cdaudio_simpl1.cil-2.c[2073,2086] [2022-07-23 06:43:35,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 06:43:35,300 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 06:43:35,310 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/ntdrivers-simplified/cdaudio_simpl1.cil-2.c[2073,2086] [2022-07-23 06:43:35,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 06:43:35,400 INFO L208 MainTranslator]: Completed translation [2022-07-23 06:43:35,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35 WrapperNode [2022-07-23 06:43:35,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 06:43:35,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 06:43:35,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 06:43:35,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 06:43:35,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,485 INFO L137 Inliner]: procedures = 41, calls = 107, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1581 [2022-07-23 06:43:35,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 06:43:35,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 06:43:35,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 06:43:35,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 06:43:35,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 06:43:35,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 06:43:35,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 06:43:35,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 06:43:35,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (1/1) ... [2022-07-23 06:43:35,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 06:43:35,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 06:43:35,611 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) [2022-07-23 06:43:35,613 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 [2022-07-23 06:43:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-07-23 06:43:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-07-23 06:43:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 06:43:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-07-23 06:43:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-07-23 06:43:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-07-23 06:43:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-07-23 06:43:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-07-23 06:43:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-07-23 06:43:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-23 06:43:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-23 06:43:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-23 06:43:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-23 06:43:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-07-23 06:43:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-07-23 06:43:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-07-23 06:43:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-07-23 06:43:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-07-23 06:43:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-07-23 06:43:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-23 06:43:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-23 06:43:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 06:43:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-23 06:43:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-23 06:43:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-07-23 06:43:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-07-23 06:43:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 06:43:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 06:43:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-07-23 06:43:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-07-23 06:43:35,799 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 06:43:35,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 06:43:35,925 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:35,977 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-07-23 06:43:35,977 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-07-23 06:43:36,037 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,054 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-23 06:43:36,054 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-23 06:43:36,062 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,062 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,064 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,071 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,119 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,121 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,122 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,521 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0; [2022-07-23 06:43:36,521 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2022-07-23 06:43:36,521 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2022-07-23 06:43:36,521 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2022-07-23 06:43:36,521 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2022-07-23 06:43:36,522 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-07-23 06:43:36,522 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-07-23 06:43:36,522 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2022-07-23 06:43:36,522 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2022-07-23 06:43:36,522 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2022-07-23 06:43:36,522 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2022-07-23 06:43:36,523 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-23 06:43:36,523 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-23 06:43:36,523 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-07-23 06:43:36,523 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-07-23 06:43:36,555 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 06:43:36,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 06:43:36,563 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 06:43:36,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:43:36 BoogieIcfgContainer [2022-07-23 06:43:36,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 06:43:36,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 06:43:36,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 06:43:36,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 06:43:36,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:43:35" (1/3) ... [2022-07-23 06:43:36,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebf9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:43:36, skipping insertion in model container [2022-07-23 06:43:36,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:35" (2/3) ... [2022-07-23 06:43:36,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebf9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:43:36, skipping insertion in model container [2022-07-23 06:43:36,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:43:36" (3/3) ... [2022-07-23 06:43:36,574 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-2.c [2022-07-23 06:43:36,583 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 06:43:36,584 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-23 06:43:36,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 06:43:36,639 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42b002a7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e79bbe7 [2022-07-23 06:43:36,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-23 06:43:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 469 states, 367 states have (on average 1.5095367847411445) internal successors, (554), 386 states have internal predecessors, (554), 86 states have call successors, (86), 13 states have call predecessors, (86), 13 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2022-07-23 06:43:36,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 06:43:36,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:36,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:36,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:36,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937654, now seen corresponding path program 1 times [2022-07-23 06:43:36,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:36,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191131601] [2022-07-23 06:43:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:36,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:36,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191131601] [2022-07-23 06:43:36,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191131601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:36,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:36,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:36,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727989664] [2022-07-23 06:43:36,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:36,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:36,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:36,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:36,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:36,885 INFO L87 Difference]: Start difference. First operand has 469 states, 367 states have (on average 1.5095367847411445) internal successors, (554), 386 states have internal predecessors, (554), 86 states have call successors, (86), 13 states have call predecessors, (86), 13 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 3 states, 3 states have (on average 2.6666666666666665) 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) [2022-07-23 06:43:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:36,996 INFO L93 Difference]: Finished difference Result 621 states and 922 transitions. [2022-07-23 06:43:36,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:36,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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 [2022-07-23 06:43:36,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,015 INFO L225 Difference]: With dead ends: 621 [2022-07-23 06:43:37,016 INFO L226 Difference]: Without dead ends: 617 [2022-07-23 06:43:37,017 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 [2022-07-23 06:43:37,021 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 690 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 946 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:37,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-07-23 06:43:37,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 601. [2022-07-23 06:43:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 485 states have (on average 1.4721649484536083) internal successors, (714), 492 states have internal predecessors, (714), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-23 06:43:37,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 901 transitions. [2022-07-23 06:43:37,125 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 901 transitions. Word has length 8 [2022-07-23 06:43:37,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,125 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 901 transitions. [2022-07-23 06:43:37,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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) [2022-07-23 06:43:37,125 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 901 transitions. [2022-07-23 06:43:37,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 06:43:37,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 06:43:37,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128949, now seen corresponding path program 1 times [2022-07-23 06:43:37,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064727911] [2022-07-23 06:43:37,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064727911] [2022-07-23 06:43:37,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064727911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:37,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951311555] [2022-07-23 06:43:37,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,157 INFO L87 Difference]: Start difference. First operand 601 states and 901 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,180 INFO L93 Difference]: Finished difference Result 603 states and 901 transitions. [2022-07-23 06:43:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-07-23 06:43:37,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,183 INFO L225 Difference]: With dead ends: 603 [2022-07-23 06:43:37,183 INFO L226 Difference]: Without dead ends: 603 [2022-07-23 06:43:37,183 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 [2022-07-23 06:43:37,184 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 384 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 942 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-07-23 06:43:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 601. [2022-07-23 06:43:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 485 states have (on average 1.4701030927835053) internal successors, (713), 492 states have internal predecessors, (713), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-23 06:43:37,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 900 transitions. [2022-07-23 06:43:37,199 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 900 transitions. Word has length 9 [2022-07-23 06:43:37,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,199 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 900 transitions. [2022-07-23 06:43:37,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 900 transitions. [2022-07-23 06:43:37,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 06:43:37,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 06:43:37,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,201 INFO L85 PathProgramCache]: Analyzing trace with hash 929451779, now seen corresponding path program 1 times [2022-07-23 06:43:37,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389512508] [2022-07-23 06:43:37,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389512508] [2022-07-23 06:43:37,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389512508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 06:43:37,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237449065] [2022-07-23 06:43:37,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,225 INFO L87 Difference]: Start difference. First operand 601 states and 900 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,293 INFO L93 Difference]: Finished difference Result 600 states and 899 transitions. [2022-07-23 06:43:37,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-07-23 06:43:37,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,296 INFO L225 Difference]: With dead ends: 600 [2022-07-23 06:43:37,296 INFO L226 Difference]: Without dead ends: 597 [2022-07-23 06:43:37,296 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 [2022-07-23 06:43:37,297 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 416 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 847 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-07-23 06:43:37,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 591. [2022-07-23 06:43:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 476 states have (on average 1.4516806722689075) internal successors, (691), 482 states have internal predecessors, (691), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-23 06:43:37,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 878 transitions. [2022-07-23 06:43:37,311 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 878 transitions. Word has length 9 [2022-07-23 06:43:37,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,312 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 878 transitions. [2022-07-23 06:43:37,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,312 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 878 transitions. [2022-07-23 06:43:37,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 06:43:37,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 06:43:37,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618303, now seen corresponding path program 1 times [2022-07-23 06:43:37,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391220851] [2022-07-23 06:43:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391220851] [2022-07-23 06:43:37,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391220851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085597341] [2022-07-23 06:43:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,351 INFO L87 Difference]: Start difference. First operand 591 states and 878 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,419 INFO L93 Difference]: Finished difference Result 594 states and 880 transitions. [2022-07-23 06:43:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-23 06:43:37,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,423 INFO L225 Difference]: With dead ends: 594 [2022-07-23 06:43:37,423 INFO L226 Difference]: Without dead ends: 591 [2022-07-23 06:43:37,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,424 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 0 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1329 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:37,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-23 06:43:37,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2022-07-23 06:43:37,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 476 states have (on average 1.449579831932773) internal successors, (690), 482 states have internal predecessors, (690), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-23 06:43:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 877 transitions. [2022-07-23 06:43:37,439 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 877 transitions. Word has length 13 [2022-07-23 06:43:37,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,439 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 877 transitions. [2022-07-23 06:43:37,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,440 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 877 transitions. [2022-07-23 06:43:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 06:43:37,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 06:43:37,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839995, now seen corresponding path program 1 times [2022-07-23 06:43:37,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470673378] [2022-07-23 06:43:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470673378] [2022-07-23 06:43:37,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470673378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:37,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480314447] [2022-07-23 06:43:37,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,482 INFO L87 Difference]: Start difference. First operand 591 states and 877 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,602 INFO L93 Difference]: Finished difference Result 835 states and 1220 transitions. [2022-07-23 06:43:37,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-23 06:43:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,608 INFO L225 Difference]: With dead ends: 835 [2022-07-23 06:43:37,608 INFO L226 Difference]: Without dead ends: 834 [2022-07-23 06:43:37,608 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 [2022-07-23 06:43:37,613 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 564 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1032 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:37,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-07-23 06:43:37,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 791. [2022-07-23 06:43:37,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 649 states have (on average 1.4206471494607087) internal successors, (922), 641 states have internal predecessors, (922), 106 states have call successors, (106), 31 states have call predecessors, (106), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2022-07-23 06:43:37,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1164 transitions. [2022-07-23 06:43:37,640 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1164 transitions. Word has length 15 [2022-07-23 06:43:37,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,640 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1164 transitions. [2022-07-23 06:43:37,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,641 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1164 transitions. [2022-07-23 06:43:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-23 06:43:37,645 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 06:43:37,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1752786185, now seen corresponding path program 1 times [2022-07-23 06:43:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380972905] [2022-07-23 06:43:37,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380972905] [2022-07-23 06:43:37,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380972905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:37,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137790010] [2022-07-23 06:43:37,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,706 INFO L87 Difference]: Start difference. First operand 791 states and 1164 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,728 INFO L93 Difference]: Finished difference Result 867 states and 1260 transitions. [2022-07-23 06:43:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-23 06:43:37,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,732 INFO L225 Difference]: With dead ends: 867 [2022-07-23 06:43:37,732 INFO L226 Difference]: Without dead ends: 867 [2022-07-23 06:43:37,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,734 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 601 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 864 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:37,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-07-23 06:43:37,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 839. [2022-07-23 06:43:37,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 692 states have (on average 1.439306358381503) internal successors, (996), 695 states have internal predecessors, (996), 105 states have call successors, (105), 35 states have call predecessors, (105), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-07-23 06:43:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1228 transitions. [2022-07-23 06:43:37,757 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1228 transitions. Word has length 19 [2022-07-23 06:43:37,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,758 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1228 transitions. [2022-07-23 06:43:37,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1228 transitions. [2022-07-23 06:43:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-23 06:43:37,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,759 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] [2022-07-23 06:43:37,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 06:43:37,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1868596178, now seen corresponding path program 1 times [2022-07-23 06:43:37,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280030776] [2022-07-23 06:43:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280030776] [2022-07-23 06:43:37,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280030776] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:37,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318682924] [2022-07-23 06:43:37,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,811 INFO L87 Difference]: Start difference. First operand 839 states and 1228 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,917 INFO L93 Difference]: Finished difference Result 1332 states and 2008 transitions. [2022-07-23 06:43:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-23 06:43:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,923 INFO L225 Difference]: With dead ends: 1332 [2022-07-23 06:43:37,923 INFO L226 Difference]: Without dead ends: 1332 [2022-07-23 06:43:37,924 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 [2022-07-23 06:43:37,926 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 336 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1616 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:37,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2022-07-23 06:43:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1027. [2022-07-23 06:43:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 848 states have (on average 1.4375) internal successors, (1219), 849 states have internal predecessors, (1219), 122 states have call successors, (122), 47 states have call predecessors, (122), 56 states have return successors, (205), 130 states have call predecessors, (205), 115 states have call successors, (205) [2022-07-23 06:43:37,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1546 transitions. [2022-07-23 06:43:37,948 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1546 transitions. Word has length 21 [2022-07-23 06:43:37,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,950 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1546 transitions. [2022-07-23 06:43:37,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1546 transitions. [2022-07-23 06:43:37,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-23 06:43:37,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,952 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] [2022-07-23 06:43:37,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 06:43:37,952 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1853359414, now seen corresponding path program 1 times [2022-07-23 06:43:37,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905812451] [2022-07-23 06:43:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905812451] [2022-07-23 06:43:38,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905812451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:38,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584546319] [2022-07-23 06:43:38,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:38,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:38,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:38,013 INFO L87 Difference]: Start difference. First operand 1027 states and 1546 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,298 INFO L93 Difference]: Finished difference Result 1060 states and 1579 transitions. [2022-07-23 06:43:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:43:38,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-23 06:43:38,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,302 INFO L225 Difference]: With dead ends: 1060 [2022-07-23 06:43:38,302 INFO L226 Difference]: Without dead ends: 1060 [2022-07-23 06:43:38,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:38,303 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 1030 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 862 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-07-23 06:43:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1009. [2022-07-23 06:43:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 833 states have (on average 1.4309723889555823) internal successors, (1192), 834 states have internal predecessors, (1192), 119 states have call successors, (119), 44 states have call predecessors, (119), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2022-07-23 06:43:38,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1510 transitions. [2022-07-23 06:43:38,323 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1510 transitions. Word has length 22 [2022-07-23 06:43:38,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,324 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1510 transitions. [2022-07-23 06:43:38,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1510 transitions. [2022-07-23 06:43:38,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-23 06:43:38,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,325 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] [2022-07-23 06:43:38,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 06:43:38,325 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,326 INFO L85 PathProgramCache]: Analyzing trace with hash -401986613, now seen corresponding path program 1 times [2022-07-23 06:43:38,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139453586] [2022-07-23 06:43:38,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139453586] [2022-07-23 06:43:38,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139453586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:38,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783010228] [2022-07-23 06:43:38,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:38,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:38,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:38,346 INFO L87 Difference]: Start difference. First operand 1009 states and 1510 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,384 INFO L93 Difference]: Finished difference Result 1008 states and 1507 transitions. [2022-07-23 06:43:38,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:38,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-23 06:43:38,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,388 INFO L225 Difference]: With dead ends: 1008 [2022-07-23 06:43:38,388 INFO L226 Difference]: Without dead ends: 1008 [2022-07-23 06:43:38,388 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 [2022-07-23 06:43:38,388 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 22 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1248 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-23 06:43:38,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2022-07-23 06:43:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 833 states have (on average 1.4285714285714286) internal successors, (1190), 833 states have internal predecessors, (1190), 118 states have call successors, (118), 44 states have call predecessors, (118), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2022-07-23 06:43:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1507 transitions. [2022-07-23 06:43:38,407 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1507 transitions. Word has length 23 [2022-07-23 06:43:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,408 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1507 transitions. [2022-07-23 06:43:38,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1507 transitions. [2022-07-23 06:43:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-23 06:43:38,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,410 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] [2022-07-23 06:43:38,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 06:43:38,410 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash -411805955, now seen corresponding path program 1 times [2022-07-23 06:43:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850560104] [2022-07-23 06:43:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 06:43:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850560104] [2022-07-23 06:43:38,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850560104] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021987466] [2022-07-23 06:43:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:38,436 INFO L87 Difference]: Start difference. First operand 1008 states and 1507 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,636 INFO L93 Difference]: Finished difference Result 1305 states and 1930 transitions. [2022-07-23 06:43:38,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:38,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-23 06:43:38,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,641 INFO L225 Difference]: With dead ends: 1305 [2022-07-23 06:43:38,641 INFO L226 Difference]: Without dead ends: 1305 [2022-07-23 06:43:38,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:38,642 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 768 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1390 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-07-23 06:43:38,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1065. [2022-07-23 06:43:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 881 states have (on average 1.41316685584563) internal successors, (1245), 886 states have internal predecessors, (1245), 115 states have call successors, (115), 49 states have call predecessors, (115), 68 states have return successors, (178), 129 states have call predecessors, (178), 109 states have call successors, (178) [2022-07-23 06:43:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1538 transitions. [2022-07-23 06:43:38,664 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1538 transitions. Word has length 36 [2022-07-23 06:43:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,664 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1538 transitions. [2022-07-23 06:43:38,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1538 transitions. [2022-07-23 06:43:38,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:43:38,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,666 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] [2022-07-23 06:43:38,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 06:43:38,666 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -2014058946, now seen corresponding path program 1 times [2022-07-23 06:43:38,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403417654] [2022-07-23 06:43:38,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:43:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403417654] [2022-07-23 06:43:38,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403417654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:38,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863950189] [2022-07-23 06:43:38,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:38,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:38,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:38,694 INFO L87 Difference]: Start difference. First operand 1065 states and 1538 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,859 INFO L93 Difference]: Finished difference Result 836 states and 1213 transitions. [2022-07-23 06:43:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:38,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-23 06:43:38,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,862 INFO L225 Difference]: With dead ends: 836 [2022-07-23 06:43:38,862 INFO L226 Difference]: Without dead ends: 836 [2022-07-23 06:43:38,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:38,863 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 248 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1763 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:38,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-07-23 06:43:38,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 797. [2022-07-23 06:43:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 659 states have (on average 1.4142640364188164) internal successors, (932), 666 states have internal predecessors, (932), 93 states have call successors, (93), 33 states have call predecessors, (93), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-07-23 06:43:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1146 transitions. [2022-07-23 06:43:38,876 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1146 transitions. Word has length 35 [2022-07-23 06:43:38,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,877 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1146 transitions. [2022-07-23 06:43:38,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,877 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1146 transitions. [2022-07-23 06:43:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-23 06:43:38,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,878 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] [2022-07-23 06:43:38,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 06:43:38,879 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894196, now seen corresponding path program 1 times [2022-07-23 06:43:38,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948686160] [2022-07-23 06:43:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948686160] [2022-07-23 06:43:38,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948686160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:38,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656599293] [2022-07-23 06:43:38,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:38,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:38,902 INFO L87 Difference]: Start difference. First operand 797 states and 1146 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:39,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:39,080 INFO L93 Difference]: Finished difference Result 813 states and 1164 transitions. [2022-07-23 06:43:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:43:39,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-23 06:43:39,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:39,083 INFO L225 Difference]: With dead ends: 813 [2022-07-23 06:43:39,083 INFO L226 Difference]: Without dead ends: 813 [2022-07-23 06:43:39,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:39,084 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 690 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:39,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1099 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-07-23 06:43:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 797. [2022-07-23 06:43:39,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 659 states have (on average 1.4112291350531108) internal successors, (930), 666 states have internal predecessors, (930), 93 states have call successors, (93), 33 states have call predecessors, (93), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-07-23 06:43:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1144 transitions. [2022-07-23 06:43:39,097 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1144 transitions. Word has length 32 [2022-07-23 06:43:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:39,097 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1144 transitions. [2022-07-23 06:43:39,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:39,098 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1144 transitions. [2022-07-23 06:43:39,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-23 06:43:39,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:39,099 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] [2022-07-23 06:43:39,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 06:43:39,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:39,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash -509252101, now seen corresponding path program 1 times [2022-07-23 06:43:39,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:39,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878662835] [2022-07-23 06:43:39,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:39,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 06:43:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878662835] [2022-07-23 06:43:39,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878662835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:39,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380265484] [2022-07-23 06:43:39,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:39,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:39,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:39,146 INFO L87 Difference]: Start difference. First operand 797 states and 1144 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:39,516 INFO L93 Difference]: Finished difference Result 706 states and 1022 transitions. [2022-07-23 06:43:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:43:39,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-23 06:43:39,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:39,519 INFO L225 Difference]: With dead ends: 706 [2022-07-23 06:43:39,519 INFO L226 Difference]: Without dead ends: 706 [2022-07-23 06:43:39,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:39,519 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 843 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:39,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1645 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:39,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-07-23 06:43:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 665. [2022-07-23 06:43:39,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 548 states have (on average 1.4087591240875912) internal successors, (772), 554 states have internal predecessors, (772), 85 states have call successors, (85), 26 states have call predecessors, (85), 31 states have return successors, (96), 84 states have call predecessors, (96), 79 states have call successors, (96) [2022-07-23 06:43:39,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 953 transitions. [2022-07-23 06:43:39,531 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 953 transitions. Word has length 36 [2022-07-23 06:43:39,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:39,531 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 953 transitions. [2022-07-23 06:43:39,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 953 transitions. [2022-07-23 06:43:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-23 06:43:39,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:39,533 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] [2022-07-23 06:43:39,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 06:43:39,533 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash 138801863, now seen corresponding path program 1 times [2022-07-23 06:43:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:39,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942674240] [2022-07-23 06:43:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:39,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942674240] [2022-07-23 06:43:39,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942674240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:39,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961717190] [2022-07-23 06:43:39,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:39,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:39,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:39,553 INFO L87 Difference]: Start difference. First operand 665 states and 953 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:39,598 INFO L93 Difference]: Finished difference Result 811 states and 1155 transitions. [2022-07-23 06:43:39,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:39,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-23 06:43:39,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:39,601 INFO L225 Difference]: With dead ends: 811 [2022-07-23 06:43:39,601 INFO L226 Difference]: Without dead ends: 811 [2022-07-23 06:43:39,601 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 [2022-07-23 06:43:39,602 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 132 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:39,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1372 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-07-23 06:43:39,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 713. [2022-07-23 06:43:39,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 592 states have (on average 1.385135135135135) internal successors, (820), 591 states have internal predecessors, (820), 85 states have call successors, (85), 26 states have call predecessors, (85), 35 states have return successors, (107), 95 states have call predecessors, (107), 79 states have call successors, (107) [2022-07-23 06:43:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1012 transitions. [2022-07-23 06:43:39,613 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1012 transitions. Word has length 34 [2022-07-23 06:43:39,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:39,613 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 1012 transitions. [2022-07-23 06:43:39,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:39,614 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1012 transitions. [2022-07-23 06:43:39,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-23 06:43:39,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:39,615 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] [2022-07-23 06:43:39,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-23 06:43:39,615 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:39,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:39,616 INFO L85 PathProgramCache]: Analyzing trace with hash -298326267, now seen corresponding path program 1 times [2022-07-23 06:43:39,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:39,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733612996] [2022-07-23 06:43:39,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:39,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733612996] [2022-07-23 06:43:39,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733612996] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:39,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519565582] [2022-07-23 06:43:39,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:39,648 INFO L87 Difference]: Start difference. First operand 713 states and 1012 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:39,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:39,832 INFO L93 Difference]: Finished difference Result 694 states and 982 transitions. [2022-07-23 06:43:39,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:43:39,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-23 06:43:39,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:39,835 INFO L225 Difference]: With dead ends: 694 [2022-07-23 06:43:39,835 INFO L226 Difference]: Without dead ends: 694 [2022-07-23 06:43:39,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:39,836 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 670 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:39,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1099 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-07-23 06:43:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2022-07-23 06:43:39,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 575 states have (on average 1.3895652173913045) internal successors, (799), 581 states have internal predecessors, (799), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-23 06:43:39,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 982 transitions. [2022-07-23 06:43:39,846 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 982 transitions. Word has length 34 [2022-07-23 06:43:39,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:39,846 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 982 transitions. [2022-07-23 06:43:39,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:39,846 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 982 transitions. [2022-07-23 06:43:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:43:39,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:39,848 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] [2022-07-23 06:43:39,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-23 06:43:39,848 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:39,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:39,848 INFO L85 PathProgramCache]: Analyzing trace with hash 452395465, now seen corresponding path program 1 times [2022-07-23 06:43:39,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:39,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982102069] [2022-07-23 06:43:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:39,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982102069] [2022-07-23 06:43:39,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982102069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:39,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864104776] [2022-07-23 06:43:39,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:39,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:39,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:39,906 INFO L87 Difference]: Start difference. First operand 694 states and 982 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:40,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,110 INFO L93 Difference]: Finished difference Result 788 states and 1120 transitions. [2022-07-23 06:43:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:43:40,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-23 06:43:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,113 INFO L225 Difference]: With dead ends: 788 [2022-07-23 06:43:40,114 INFO L226 Difference]: Without dead ends: 788 [2022-07-23 06:43:40,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:40,114 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 743 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1190 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-07-23 06:43:40,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 696. [2022-07-23 06:43:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 577 states have (on average 1.3882149046793761) internal successors, (801), 583 states have internal predecessors, (801), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-23 06:43:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 984 transitions. [2022-07-23 06:43:40,129 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 984 transitions. Word has length 35 [2022-07-23 06:43:40,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,130 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 984 transitions. [2022-07-23 06:43:40,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:40,130 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 984 transitions. [2022-07-23 06:43:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:43:40,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,132 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] [2022-07-23 06:43:40,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-23 06:43:40,132 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash 452672295, now seen corresponding path program 1 times [2022-07-23 06:43:40,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731927369] [2022-07-23 06:43:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:40,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:40,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731927369] [2022-07-23 06:43:40,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731927369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:40,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:40,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:40,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708676986] [2022-07-23 06:43:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:40,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:40,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:40,167 INFO L87 Difference]: Start difference. First operand 696 states and 984 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,209 INFO L93 Difference]: Finished difference Result 706 states and 994 transitions. [2022-07-23 06:43:40,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:43:40,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-23 06:43:40,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,212 INFO L225 Difference]: With dead ends: 706 [2022-07-23 06:43:40,212 INFO L226 Difference]: Without dead ends: 679 [2022-07-23 06:43:40,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:40,212 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 38 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3193 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-07-23 06:43:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-07-23 06:43:40,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 560 states have (on average 1.394642857142857) internal successors, (781), 566 states have internal predecessors, (781), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-23 06:43:40,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 964 transitions. [2022-07-23 06:43:40,223 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 964 transitions. Word has length 35 [2022-07-23 06:43:40,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,223 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 964 transitions. [2022-07-23 06:43:40,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:40,224 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 964 transitions. [2022-07-23 06:43:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 06:43:40,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,225 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] [2022-07-23 06:43:40,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-23 06:43:40,225 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1898283434, now seen corresponding path program 1 times [2022-07-23 06:43:40,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47470498] [2022-07-23 06:43:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 06:43:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:40,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:40,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47470498] [2022-07-23 06:43:40,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47470498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:40,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:40,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:40,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412097831] [2022-07-23 06:43:40,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:40,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:40,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:40,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:40,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:40,256 INFO L87 Difference]: Start difference. First operand 679 states and 964 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,433 INFO L93 Difference]: Finished difference Result 712 states and 1022 transitions. [2022-07-23 06:43:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:40,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-07-23 06:43:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,436 INFO L225 Difference]: With dead ends: 712 [2022-07-23 06:43:40,437 INFO L226 Difference]: Without dead ends: 710 [2022-07-23 06:43:40,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:40,437 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 150 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1540 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-23 06:43:40,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 692. [2022-07-23 06:43:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 573 states have (on average 1.3891797556719023) internal successors, (796), 579 states have internal predecessors, (796), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-23 06:43:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 979 transitions. [2022-07-23 06:43:40,448 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 979 transitions. Word has length 37 [2022-07-23 06:43:40,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,448 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 979 transitions. [2022-07-23 06:43:40,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 979 transitions. [2022-07-23 06:43:40,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-23 06:43:40,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:40,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-23 06:43:40,450 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1374369595, now seen corresponding path program 1 times [2022-07-23 06:43:40,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201323103] [2022-07-23 06:43:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 06:43:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:40,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:40,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201323103] [2022-07-23 06:43:40,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201323103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:40,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:40,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:40,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478422098] [2022-07-23 06:43:40,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:40,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:40,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:40,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:40,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:40,505 INFO L87 Difference]: Start difference. First operand 692 states and 979 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,835 INFO L93 Difference]: Finished difference Result 710 states and 1019 transitions. [2022-07-23 06:43:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:40,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-23 06:43:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,837 INFO L225 Difference]: With dead ends: 710 [2022-07-23 06:43:40,838 INFO L226 Difference]: Without dead ends: 710 [2022-07-23 06:43:40,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:40,838 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 745 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1870 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:40,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-23 06:43:40,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 692. [2022-07-23 06:43:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 573 states have (on average 1.387434554973822) internal successors, (795), 579 states have internal predecessors, (795), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-23 06:43:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 978 transitions. [2022-07-23 06:43:40,851 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 978 transitions. Word has length 39 [2022-07-23 06:43:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,851 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 978 transitions. [2022-07-23 06:43:40,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 978 transitions. [2022-07-23 06:43:40,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-23 06:43:40,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:40,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-23 06:43:40,853 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,854 INFO L85 PathProgramCache]: Analyzing trace with hash -31152669, now seen corresponding path program 1 times [2022-07-23 06:43:40,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735994450] [2022-07-23 06:43:40,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 06:43:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:40,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:40,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735994450] [2022-07-23 06:43:40,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735994450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:40,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:40,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:40,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013102709] [2022-07-23 06:43:40,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:40,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:40,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:40,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:40,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:40,903 INFO L87 Difference]: Start difference. First operand 692 states and 978 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:41,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:41,185 INFO L93 Difference]: Finished difference Result 728 states and 1040 transitions. [2022-07-23 06:43:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:41,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-23 06:43:41,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:41,187 INFO L225 Difference]: With dead ends: 728 [2022-07-23 06:43:41,188 INFO L226 Difference]: Without dead ends: 699 [2022-07-23 06:43:41,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:41,189 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 158 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:41,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3958 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:41,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-23 06:43:41,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 683. [2022-07-23 06:43:41,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 566 states have (on average 1.3692579505300353) internal successors, (775), 572 states have internal predecessors, (775), 83 states have call successors, (83), 26 states have call predecessors, (83), 33 states have return successors, (96), 84 states have call predecessors, (96), 77 states have call successors, (96) [2022-07-23 06:43:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 954 transitions. [2022-07-23 06:43:41,205 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 954 transitions. Word has length 40 [2022-07-23 06:43:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:41,205 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 954 transitions. [2022-07-23 06:43:41,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 954 transitions. [2022-07-23 06:43:41,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-23 06:43:41,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:41,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:41,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-23 06:43:41,207 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:41,208 INFO L85 PathProgramCache]: Analyzing trace with hash 128291846, now seen corresponding path program 1 times [2022-07-23 06:43:41,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:41,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145374694] [2022-07-23 06:43:41,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:41,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:43:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-23 06:43:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:41,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:41,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145374694] [2022-07-23 06:43:41,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145374694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:41,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:41,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:41,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490658364] [2022-07-23 06:43:41,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:41,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:41,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:41,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:41,244 INFO L87 Difference]: Start difference. First operand 683 states and 954 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:41,593 INFO L93 Difference]: Finished difference Result 678 states and 964 transitions. [2022-07-23 06:43:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:41,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-23 06:43:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:41,596 INFO L225 Difference]: With dead ends: 678 [2022-07-23 06:43:41,596 INFO L226 Difference]: Without dead ends: 678 [2022-07-23 06:43:41,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:41,597 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 252 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:41,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1790 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:41,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-07-23 06:43:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 662. [2022-07-23 06:43:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 548 states have (on average 1.364963503649635) internal successors, (748), 553 states have internal predecessors, (748), 82 states have call successors, (82), 26 states have call predecessors, (82), 31 states have return successors, (94), 82 states have call predecessors, (94), 77 states have call successors, (94) [2022-07-23 06:43:41,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 924 transitions. [2022-07-23 06:43:41,607 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 924 transitions. Word has length 43 [2022-07-23 06:43:41,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:41,607 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 924 transitions. [2022-07-23 06:43:41,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 924 transitions. [2022-07-23 06:43:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-23 06:43:41,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:41,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:41,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-23 06:43:41,609 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:41,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:41,609 INFO L85 PathProgramCache]: Analyzing trace with hash -37716100, now seen corresponding path program 1 times [2022-07-23 06:43:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:41,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713813467] [2022-07-23 06:43:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:41,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:41,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713813467] [2022-07-23 06:43:41,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713813467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:41,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:41,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:43:41,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293072037] [2022-07-23 06:43:41,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:41,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:43:41,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:41,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:43:41,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:41,725 INFO L87 Difference]: Start difference. First operand 662 states and 924 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:42,244 INFO L93 Difference]: Finished difference Result 689 states and 975 transitions. [2022-07-23 06:43:42,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:43:42,246 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-07-23 06:43:42,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:42,248 INFO L225 Difference]: With dead ends: 689 [2022-07-23 06:43:42,248 INFO L226 Difference]: Without dead ends: 676 [2022-07-23 06:43:42,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:42,249 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 98 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4437 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:42,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4437 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:42,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-07-23 06:43:42,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 660. [2022-07-23 06:43:42,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 547 states have (on average 1.363802559414991) internal successors, (746), 552 states have internal predecessors, (746), 81 states have call successors, (81), 26 states have call predecessors, (81), 31 states have return successors, (93), 81 states have call predecessors, (93), 76 states have call successors, (93) [2022-07-23 06:43:42,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 920 transitions. [2022-07-23 06:43:42,260 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 920 transitions. Word has length 44 [2022-07-23 06:43:42,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:42,260 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 920 transitions. [2022-07-23 06:43:42,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:42,261 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 920 transitions. [2022-07-23 06:43:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-23 06:43:42,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:42,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:42,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-23 06:43:42,262 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:42,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1983772567, now seen corresponding path program 1 times [2022-07-23 06:43:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:42,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438360837] [2022-07-23 06:43:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:43:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:42,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:42,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438360837] [2022-07-23 06:43:42,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438360837] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:42,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:42,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:43:42,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008288796] [2022-07-23 06:43:42,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:42,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:43:42,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:42,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:43:42,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:42,354 INFO L87 Difference]: Start difference. First operand 660 states and 920 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:42,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:42,921 INFO L93 Difference]: Finished difference Result 686 states and 970 transitions. [2022-07-23 06:43:42,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:43:42,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-23 06:43:42,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:42,925 INFO L225 Difference]: With dead ends: 686 [2022-07-23 06:43:42,925 INFO L226 Difference]: Without dead ends: 673 [2022-07-23 06:43:42,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:42,925 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 98 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:42,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4386 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:42,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-07-23 06:43:42,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 657. [2022-07-23 06:43:42,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 545 states have (on average 1.363302752293578) internal successors, (743), 550 states have internal predecessors, (743), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (92), 80 states have call predecessors, (92), 75 states have call successors, (92) [2022-07-23 06:43:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 915 transitions. [2022-07-23 06:43:42,948 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 915 transitions. Word has length 43 [2022-07-23 06:43:42,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:42,948 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 915 transitions. [2022-07-23 06:43:42,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 915 transitions. [2022-07-23 06:43:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-23 06:43:42,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:42,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:42,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-23 06:43:42,950 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash 724634571, now seen corresponding path program 1 times [2022-07-23 06:43:42,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:42,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419832583] [2022-07-23 06:43:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:42,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 06:43:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:43,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:43,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419832583] [2022-07-23 06:43:43,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419832583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:43,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:43,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-23 06:43:43,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706823721] [2022-07-23 06:43:43,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:43,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 06:43:43,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:43,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 06:43:43,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:43:43,050 INFO L87 Difference]: Start difference. First operand 657 states and 915 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:43,773 INFO L93 Difference]: Finished difference Result 706 states and 990 transitions. [2022-07-23 06:43:43,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:43,782 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-07-23 06:43:43,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:43,785 INFO L225 Difference]: With dead ends: 706 [2022-07-23 06:43:43,785 INFO L226 Difference]: Without dead ends: 689 [2022-07-23 06:43:43,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-07-23 06:43:43,785 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 244 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:43,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 5102 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:43,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-07-23 06:43:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 655. [2022-07-23 06:43:43,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 544 states have (on average 1.3621323529411764) internal successors, (741), 549 states have internal predecessors, (741), 79 states have call successors, (79), 26 states have call predecessors, (79), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-07-23 06:43:43,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 911 transitions. [2022-07-23 06:43:43,795 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 911 transitions. Word has length 47 [2022-07-23 06:43:43,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:43,795 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 911 transitions. [2022-07-23 06:43:43,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 911 transitions. [2022-07-23 06:43:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-23 06:43:43,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:43,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:43,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-23 06:43:43,797 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:43,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:43,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1637865694, now seen corresponding path program 1 times [2022-07-23 06:43:43,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:43,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057952887] [2022-07-23 06:43:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:43,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:43,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:43,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057952887] [2022-07-23 06:43:43,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057952887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:43,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:43,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-23 06:43:43,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358098849] [2022-07-23 06:43:43,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:43,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 06:43:43,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:43,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 06:43:43,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:43:43,878 INFO L87 Difference]: Start difference. First operand 655 states and 911 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:44,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:44,534 INFO L93 Difference]: Finished difference Result 704 states and 986 transitions. [2022-07-23 06:43:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:44,534 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-07-23 06:43:44,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:44,537 INFO L225 Difference]: With dead ends: 704 [2022-07-23 06:43:44,537 INFO L226 Difference]: Without dead ends: 686 [2022-07-23 06:43:44,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-07-23 06:43:44,537 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 259 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 4624 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:44,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 4624 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-07-23 06:43:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 654. [2022-07-23 06:43:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 543 states have (on average 1.3443830570902393) internal successors, (730), 548 states have internal predecessors, (730), 79 states have call successors, (79), 26 states have call predecessors, (79), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-07-23 06:43:44,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 900 transitions. [2022-07-23 06:43:44,546 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 900 transitions. Word has length 44 [2022-07-23 06:43:44,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:44,546 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 900 transitions. [2022-07-23 06:43:44,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:44,546 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 900 transitions. [2022-07-23 06:43:44,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-23 06:43:44,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:44,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:44,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-23 06:43:44,548 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:44,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:44,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1376070278, now seen corresponding path program 1 times [2022-07-23 06:43:44,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:44,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918597033] [2022-07-23 06:43:44,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:44,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-23 06:43:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:44,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918597033] [2022-07-23 06:43:44,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918597033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:44,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:44,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:43:44,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854656177] [2022-07-23 06:43:44,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:44,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:43:44,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:43:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:44,598 INFO L87 Difference]: Start difference. First operand 654 states and 900 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:44,896 INFO L93 Difference]: Finished difference Result 700 states and 969 transitions. [2022-07-23 06:43:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:44,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-23 06:43:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:44,899 INFO L225 Difference]: With dead ends: 700 [2022-07-23 06:43:44,899 INFO L226 Difference]: Without dead ends: 658 [2022-07-23 06:43:44,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:43:44,899 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 235 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:44,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 3665 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:44,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-07-23 06:43:44,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 642. [2022-07-23 06:43:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 534 states have (on average 1.3389513108614233) internal successors, (715), 539 states have internal predecessors, (715), 76 states have call successors, (76), 26 states have call predecessors, (76), 31 states have return successors, (88), 76 states have call predecessors, (88), 71 states have call successors, (88) [2022-07-23 06:43:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 879 transitions. [2022-07-23 06:43:44,909 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 879 transitions. Word has length 44 [2022-07-23 06:43:44,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:44,909 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 879 transitions. [2022-07-23 06:43:44,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 879 transitions. [2022-07-23 06:43:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 06:43:44,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:44,910 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] [2022-07-23 06:43:44,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-23 06:43:44,911 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:44,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:44,911 INFO L85 PathProgramCache]: Analyzing trace with hash -766417177, now seen corresponding path program 1 times [2022-07-23 06:43:44,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:44,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950689246] [2022-07-23 06:43:44,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:44,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:43:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:44,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:44,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950689246] [2022-07-23 06:43:44,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950689246] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:44,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:44,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205541558] [2022-07-23 06:43:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:44,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:44,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:44,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:44,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:44,943 INFO L87 Difference]: Start difference. First operand 642 states and 879 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:45,199 INFO L93 Difference]: Finished difference Result 693 states and 983 transitions. [2022-07-23 06:43:45,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:45,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-07-23 06:43:45,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:45,202 INFO L225 Difference]: With dead ends: 693 [2022-07-23 06:43:45,202 INFO L226 Difference]: Without dead ends: 693 [2022-07-23 06:43:45,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:45,203 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 134 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:45,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 2188 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-07-23 06:43:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 649. [2022-07-23 06:43:45,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 539 states have (on average 1.339517625231911) internal successors, (722), 545 states have internal predecessors, (722), 77 states have call successors, (77), 26 states have call predecessors, (77), 32 states have return successors, (95), 77 states have call predecessors, (95), 72 states have call successors, (95) [2022-07-23 06:43:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 894 transitions. [2022-07-23 06:43:45,212 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 894 transitions. Word has length 45 [2022-07-23 06:43:45,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:45,212 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 894 transitions. [2022-07-23 06:43:45,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:45,212 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 894 transitions. [2022-07-23 06:43:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 06:43:45,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:45,214 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] [2022-07-23 06:43:45,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-23 06:43:45,214 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:45,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1275890267, now seen corresponding path program 1 times [2022-07-23 06:43:45,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:45,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112075056] [2022-07-23 06:43:45,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:45,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:43:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:45,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:45,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112075056] [2022-07-23 06:43:45,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112075056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:45,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:45,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:43:45,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348918149] [2022-07-23 06:43:45,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:45,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:43:45,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:43:45,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:45,279 INFO L87 Difference]: Start difference. First operand 649 states and 894 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:45,578 INFO L93 Difference]: Finished difference Result 684 states and 959 transitions. [2022-07-23 06:43:45,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:45,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-07-23 06:43:45,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:45,581 INFO L225 Difference]: With dead ends: 684 [2022-07-23 06:43:45,581 INFO L226 Difference]: Without dead ends: 667 [2022-07-23 06:43:45,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:43:45,581 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 245 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:45,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 3430 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-07-23 06:43:45,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 647. [2022-07-23 06:43:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 538 states have (on average 1.338289962825279) internal successors, (720), 544 states have internal predecessors, (720), 76 states have call successors, (76), 26 states have call predecessors, (76), 32 states have return successors, (94), 76 states have call predecessors, (94), 71 states have call successors, (94) [2022-07-23 06:43:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 890 transitions. [2022-07-23 06:43:45,590 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 890 transitions. Word has length 45 [2022-07-23 06:43:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:45,590 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 890 transitions. [2022-07-23 06:43:45,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 890 transitions. [2022-07-23 06:43:45,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 06:43:45,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:45,592 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] [2022-07-23 06:43:45,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-23 06:43:45,592 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:45,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:45,593 INFO L85 PathProgramCache]: Analyzing trace with hash -499982008, now seen corresponding path program 1 times [2022-07-23 06:43:45,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:45,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107637442] [2022-07-23 06:43:45,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:45,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:43:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:45,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:45,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107637442] [2022-07-23 06:43:45,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107637442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:45,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:45,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:45,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538772366] [2022-07-23 06:43:45,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:45,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:45,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:45,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:45,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:45,634 INFO L87 Difference]: Start difference. First operand 647 states and 890 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:45,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:45,884 INFO L93 Difference]: Finished difference Result 691 states and 969 transitions. [2022-07-23 06:43:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:45,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-23 06:43:45,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:45,886 INFO L225 Difference]: With dead ends: 691 [2022-07-23 06:43:45,887 INFO L226 Difference]: Without dead ends: 659 [2022-07-23 06:43:45,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:45,887 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 166 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:45,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 3513 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:45,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-07-23 06:43:45,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 639. [2022-07-23 06:43:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 532 states have (on average 1.330827067669173) internal successors, (708), 538 states have internal predecessors, (708), 74 states have call successors, (74), 26 states have call predecessors, (74), 32 states have return successors, (92), 74 states have call predecessors, (92), 69 states have call successors, (92) [2022-07-23 06:43:45,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 874 transitions. [2022-07-23 06:43:45,896 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 874 transitions. Word has length 45 [2022-07-23 06:43:45,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:45,897 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 874 transitions. [2022-07-23 06:43:45,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 874 transitions. [2022-07-23 06:43:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-23 06:43:45,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:45,898 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] [2022-07-23 06:43:45,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-23 06:43:45,899 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:45,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1469834137, now seen corresponding path program 1 times [2022-07-23 06:43:45,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:45,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339299085] [2022-07-23 06:43:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:45,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:46,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:46,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339299085] [2022-07-23 06:43:46,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339299085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:46,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:46,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:46,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780025607] [2022-07-23 06:43:46,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:46,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:46,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:46,008 INFO L87 Difference]: Start difference. First operand 639 states and 874 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:46,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:46,608 INFO L93 Difference]: Finished difference Result 671 states and 936 transitions. [2022-07-23 06:43:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 06:43:46,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-07-23 06:43:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:46,611 INFO L225 Difference]: With dead ends: 671 [2022-07-23 06:43:46,611 INFO L226 Difference]: Without dead ends: 656 [2022-07-23 06:43:46,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:46,612 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 110 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4290 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:46,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4290 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2022-07-23 06:43:46,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 636. [2022-07-23 06:43:46,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 530 states have (on average 1.330188679245283) internal successors, (705), 536 states have internal predecessors, (705), 73 states have call successors, (73), 26 states have call predecessors, (73), 32 states have return successors, (91), 73 states have call predecessors, (91), 68 states have call successors, (91) [2022-07-23 06:43:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 869 transitions. [2022-07-23 06:43:46,622 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 869 transitions. Word has length 46 [2022-07-23 06:43:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:46,622 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 869 transitions. [2022-07-23 06:43:46,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 869 transitions. [2022-07-23 06:43:46,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-23 06:43:46,624 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:46,624 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] [2022-07-23 06:43:46,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-23 06:43:46,624 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:46,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:46,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1528127283, now seen corresponding path program 1 times [2022-07-23 06:43:46,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:46,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572336314] [2022-07-23 06:43:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:46,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 06:43:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:46,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:46,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572336314] [2022-07-23 06:43:46,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572336314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:46,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:46,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:46,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694462747] [2022-07-23 06:43:46,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:46,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:46,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:46,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:46,675 INFO L87 Difference]: Start difference. First operand 636 states and 869 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:46,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:46,920 INFO L93 Difference]: Finished difference Result 668 states and 950 transitions. [2022-07-23 06:43:46,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:46,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-07-23 06:43:46,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:46,923 INFO L225 Difference]: With dead ends: 668 [2022-07-23 06:43:46,924 INFO L226 Difference]: Without dead ends: 666 [2022-07-23 06:43:46,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:46,924 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 102 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:46,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 2632 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:46,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-07-23 06:43:46,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 640. [2022-07-23 06:43:46,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 532 states have (on average 1.3289473684210527) internal successors, (707), 540 states have internal predecessors, (707), 73 states have call successors, (73), 26 states have call predecessors, (73), 34 states have return successors, (107), 73 states have call predecessors, (107), 68 states have call successors, (107) [2022-07-23 06:43:46,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 887 transitions. [2022-07-23 06:43:46,934 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 887 transitions. Word has length 46 [2022-07-23 06:43:46,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:46,935 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 887 transitions. [2022-07-23 06:43:46,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 887 transitions. [2022-07-23 06:43:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 06:43:46,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:46,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:46,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-23 06:43:46,937 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:46,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash -250939957, now seen corresponding path program 1 times [2022-07-23 06:43:46,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:46,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17052499] [2022-07-23 06:43:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:46,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-23 06:43:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:47,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:47,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17052499] [2022-07-23 06:43:47,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17052499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:47,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:47,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 06:43:47,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026665177] [2022-07-23 06:43:47,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:47,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 06:43:47,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:47,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 06:43:47,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:47,064 INFO L87 Difference]: Start difference. First operand 640 states and 887 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:47,724 INFO L93 Difference]: Finished difference Result 672 states and 949 transitions. [2022-07-23 06:43:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:43:47,725 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-07-23 06:43:47,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:47,727 INFO L225 Difference]: With dead ends: 672 [2022-07-23 06:43:47,727 INFO L226 Difference]: Without dead ends: 651 [2022-07-23 06:43:47,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:47,728 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 123 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:47,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4682 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-07-23 06:43:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 631. [2022-07-23 06:43:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 525 states have (on average 1.3295238095238096) internal successors, (698), 533 states have internal predecessors, (698), 71 states have call successors, (71), 26 states have call predecessors, (71), 34 states have return successors, (105), 71 states have call predecessors, (105), 66 states have call successors, (105) [2022-07-23 06:43:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 874 transitions. [2022-07-23 06:43:47,737 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 874 transitions. Word has length 54 [2022-07-23 06:43:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:47,737 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 874 transitions. [2022-07-23 06:43:47,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:47,737 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 874 transitions. [2022-07-23 06:43:47,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-23 06:43:47,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:47,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:47,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-23 06:43:47,739 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:47,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash 43125576, now seen corresponding path program 1 times [2022-07-23 06:43:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:47,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64704993] [2022-07-23 06:43:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:47,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:47,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:47,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64704993] [2022-07-23 06:43:47,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64704993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:47,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:47,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 06:43:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181043197] [2022-07-23 06:43:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:47,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 06:43:47,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:47,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 06:43:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:47,873 INFO L87 Difference]: Start difference. First operand 631 states and 874 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:48,484 INFO L93 Difference]: Finished difference Result 663 states and 935 transitions. [2022-07-23 06:43:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:43:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-07-23 06:43:48,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:48,508 INFO L225 Difference]: With dead ends: 663 [2022-07-23 06:43:48,509 INFO L226 Difference]: Without dead ends: 648 [2022-07-23 06:43:48,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:48,509 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 123 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4550 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:48,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4550 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:48,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-07-23 06:43:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 628. [2022-07-23 06:43:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 523 states have (on average 1.3288718929254302) internal successors, (695), 531 states have internal predecessors, (695), 70 states have call successors, (70), 26 states have call predecessors, (70), 34 states have return successors, (104), 70 states have call predecessors, (104), 65 states have call successors, (104) [2022-07-23 06:43:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 869 transitions. [2022-07-23 06:43:48,518 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 869 transitions. Word has length 47 [2022-07-23 06:43:48,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:48,519 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 869 transitions. [2022-07-23 06:43:48,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:48,519 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 869 transitions. [2022-07-23 06:43:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 06:43:48,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:48,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:48,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-23 06:43:48,521 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:48,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:48,521 INFO L85 PathProgramCache]: Analyzing trace with hash 973189000, now seen corresponding path program 1 times [2022-07-23 06:43:48,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:48,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161949255] [2022-07-23 06:43:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:48,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 06:43:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:43:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:48,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:48,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161949255] [2022-07-23 06:43:48,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161949255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:48,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:48,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:48,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633636697] [2022-07-23 06:43:48,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:48,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:48,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:48,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:48,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:48,591 INFO L87 Difference]: Start difference. First operand 628 states and 869 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:43:48,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:48,861 INFO L93 Difference]: Finished difference Result 739 states and 1029 transitions. [2022-07-23 06:43:48,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:48,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-23 06:43:48,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:48,879 INFO L225 Difference]: With dead ends: 739 [2022-07-23 06:43:48,879 INFO L226 Difference]: Without dead ends: 739 [2022-07-23 06:43:48,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:48,880 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 315 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:48,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1320 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:48,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-07-23 06:43:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 692. [2022-07-23 06:43:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 577 states have (on average 1.3275563258232235) internal successors, (766), 585 states have internal predecessors, (766), 73 states have call successors, (73), 30 states have call predecessors, (73), 41 states have return successors, (113), 76 states have call predecessors, (113), 69 states have call successors, (113) [2022-07-23 06:43:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 952 transitions. [2022-07-23 06:43:48,891 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 952 transitions. Word has length 50 [2022-07-23 06:43:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:48,892 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 952 transitions. [2022-07-23 06:43:48,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:43:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 952 transitions. [2022-07-23 06:43:48,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-23 06:43:48,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:48,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:48,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-23 06:43:48,894 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:48,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:48,894 INFO L85 PathProgramCache]: Analyzing trace with hash 721425391, now seen corresponding path program 1 times [2022-07-23 06:43:48,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:48,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515121199] [2022-07-23 06:43:48,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:48,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:43:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-23 06:43:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:48,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:48,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515121199] [2022-07-23 06:43:48,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515121199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:48,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:48,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:43:48,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890439438] [2022-07-23 06:43:48,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:48,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:43:48,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:48,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:43:48,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:48,986 INFO L87 Difference]: Start difference. First operand 692 states and 952 transitions. Second operand has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:49,687 INFO L93 Difference]: Finished difference Result 753 states and 1044 transitions. [2022-07-23 06:43:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:43:49,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2022-07-23 06:43:49,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:49,690 INFO L225 Difference]: With dead ends: 753 [2022-07-23 06:43:49,690 INFO L226 Difference]: Without dead ends: 736 [2022-07-23 06:43:49,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:43:49,690 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 248 mSDsluCounter, 3683 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:49,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 4193 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:49,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-07-23 06:43:49,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 690. [2022-07-23 06:43:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 576 states have (on average 1.3263888888888888) internal successors, (764), 584 states have internal predecessors, (764), 72 states have call successors, (72), 30 states have call predecessors, (72), 41 states have return successors, (112), 75 states have call predecessors, (112), 68 states have call successors, (112) [2022-07-23 06:43:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 948 transitions. [2022-07-23 06:43:49,705 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 948 transitions. Word has length 51 [2022-07-23 06:43:49,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:49,705 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 948 transitions. [2022-07-23 06:43:49,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 948 transitions. [2022-07-23 06:43:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:43:49,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:49,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:49,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-23 06:43:49,708 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:49,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash 618682838, now seen corresponding path program 1 times [2022-07-23 06:43:49,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:49,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294330887] [2022-07-23 06:43:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:49,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:49,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:49,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294330887] [2022-07-23 06:43:49,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294330887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:49,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:49,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-23 06:43:49,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524369943] [2022-07-23 06:43:49,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:49,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 06:43:49,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:49,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 06:43:49,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:43:49,784 INFO L87 Difference]: Start difference. First operand 690 states and 948 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:50,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:50,425 INFO L93 Difference]: Finished difference Result 735 states and 1023 transitions. [2022-07-23 06:43:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:50,426 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-23 06:43:50,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:50,428 INFO L225 Difference]: With dead ends: 735 [2022-07-23 06:43:50,428 INFO L226 Difference]: Without dead ends: 718 [2022-07-23 06:43:50,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-07-23 06:43:50,428 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 235 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:50,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 4210 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:50,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-07-23 06:43:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 688. [2022-07-23 06:43:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 575 states have (on average 1.325217391304348) internal successors, (762), 583 states have internal predecessors, (762), 71 states have call successors, (71), 30 states have call predecessors, (71), 41 states have return successors, (111), 74 states have call predecessors, (111), 67 states have call successors, (111) [2022-07-23 06:43:50,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 944 transitions. [2022-07-23 06:43:50,437 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 944 transitions. Word has length 48 [2022-07-23 06:43:50,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:50,437 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 944 transitions. [2022-07-23 06:43:50,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 944 transitions. [2022-07-23 06:43:50,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:43:50,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:50,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:50,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-23 06:43:50,440 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:50,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:50,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1166693008, now seen corresponding path program 1 times [2022-07-23 06:43:50,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:50,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309062947] [2022-07-23 06:43:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:50,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 06:43:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:50,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:50,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309062947] [2022-07-23 06:43:50,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309062947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:50,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:50,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:50,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792350717] [2022-07-23 06:43:50,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:50,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:50,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:50,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:50,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:50,471 INFO L87 Difference]: Start difference. First operand 688 states and 944 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:50,640 INFO L93 Difference]: Finished difference Result 647 states and 868 transitions. [2022-07-23 06:43:50,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:50,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-23 06:43:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:50,648 INFO L225 Difference]: With dead ends: 647 [2022-07-23 06:43:50,648 INFO L226 Difference]: Without dead ends: 644 [2022-07-23 06:43:50,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:50,648 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 97 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:50,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1554 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-07-23 06:43:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 615. [2022-07-23 06:43:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 518 states have (on average 1.3204633204633205) internal successors, (684), 524 states have internal predecessors, (684), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (75), 63 states have call predecessors, (75), 58 states have call successors, (75) [2022-07-23 06:43:50,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 821 transitions. [2022-07-23 06:43:50,669 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 821 transitions. Word has length 48 [2022-07-23 06:43:50,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:50,669 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 821 transitions. [2022-07-23 06:43:50,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:50,670 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 821 transitions. [2022-07-23 06:43:50,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-23 06:43:50,671 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:50,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:50,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-23 06:43:50,672 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:50,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:50,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1152872609, now seen corresponding path program 1 times [2022-07-23 06:43:50,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:50,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204704534] [2022-07-23 06:43:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:50,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:43:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:50,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:50,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204704534] [2022-07-23 06:43:50,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204704534] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:50,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:50,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 06:43:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172969946] [2022-07-23 06:43:50,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:50,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 06:43:50,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:50,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 06:43:50,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:50,804 INFO L87 Difference]: Start difference. First operand 615 states and 821 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:51,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:51,347 INFO L93 Difference]: Finished difference Result 640 states and 853 transitions. [2022-07-23 06:43:51,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:43:51,348 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-07-23 06:43:51,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:51,349 INFO L225 Difference]: With dead ends: 640 [2022-07-23 06:43:51,349 INFO L226 Difference]: Without dead ends: 625 [2022-07-23 06:43:51,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:51,350 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 116 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4294 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:51,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4294 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-07-23 06:43:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 613. [2022-07-23 06:43:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 517 states have (on average 1.3191489361702127) internal successors, (682), 523 states have internal predecessors, (682), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-23 06:43:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 817 transitions. [2022-07-23 06:43:51,356 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 817 transitions. Word has length 57 [2022-07-23 06:43:51,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:51,357 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 817 transitions. [2022-07-23 06:43:51,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 817 transitions. [2022-07-23 06:43:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:43:51,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:51,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:51,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-23 06:43:51,358 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:51,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:51,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1985597816, now seen corresponding path program 1 times [2022-07-23 06:43:51,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:51,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158725068] [2022-07-23 06:43:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:43:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:51,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:51,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158725068] [2022-07-23 06:43:51,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158725068] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:51,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:51,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 06:43:51,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076206705] [2022-07-23 06:43:51,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:51,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 06:43:51,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:51,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 06:43:51,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:51,460 INFO L87 Difference]: Start difference. First operand 613 states and 817 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:52,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:52,020 INFO L93 Difference]: Finished difference Result 637 states and 848 transitions. [2022-07-23 06:43:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:43:52,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-23 06:43:52,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:52,022 INFO L225 Difference]: With dead ends: 637 [2022-07-23 06:43:52,022 INFO L226 Difference]: Without dead ends: 622 [2022-07-23 06:43:52,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:52,023 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 116 mSDsluCounter, 3755 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4239 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:52,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4239 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-07-23 06:43:52,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 610. [2022-07-23 06:43:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 515 states have (on average 1.3184466019417476) internal successors, (679), 521 states have internal predecessors, (679), 60 states have call successors, (60), 27 states have call predecessors, (60), 34 states have return successors, (73), 61 states have call predecessors, (73), 56 states have call successors, (73) [2022-07-23 06:43:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 812 transitions. [2022-07-23 06:43:52,033 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 812 transitions. Word has length 48 [2022-07-23 06:43:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:52,033 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 812 transitions. [2022-07-23 06:43:52,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 812 transitions. [2022-07-23 06:43:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 06:43:52,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:52,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:52,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-23 06:43:52,035 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:52,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1806708367, now seen corresponding path program 1 times [2022-07-23 06:43:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:52,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798157262] [2022-07-23 06:43:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:43:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-23 06:43:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:52,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798157262] [2022-07-23 06:43:52,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798157262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:52,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:52,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:52,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875625450] [2022-07-23 06:43:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:52,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:52,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:52,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:52,079 INFO L87 Difference]: Start difference. First operand 610 states and 812 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:52,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:52,338 INFO L93 Difference]: Finished difference Result 678 states and 897 transitions. [2022-07-23 06:43:52,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:52,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-07-23 06:43:52,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:52,340 INFO L225 Difference]: With dead ends: 678 [2022-07-23 06:43:52,340 INFO L226 Difference]: Without dead ends: 678 [2022-07-23 06:43:52,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:52,341 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 334 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:52,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 2053 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-07-23 06:43:52,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 616. [2022-07-23 06:43:52,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 520 states have (on average 1.3173076923076923) internal successors, (685), 526 states have internal predecessors, (685), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-23 06:43:52,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 820 transitions. [2022-07-23 06:43:52,349 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 820 transitions. Word has length 50 [2022-07-23 06:43:52,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:52,349 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 820 transitions. [2022-07-23 06:43:52,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 820 transitions. [2022-07-23 06:43:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 06:43:52,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:52,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:52,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-23 06:43:52,351 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:52,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:52,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1801199632, now seen corresponding path program 1 times [2022-07-23 06:43:52,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:52,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16697611] [2022-07-23 06:43:52,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:52,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:43:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:43:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:52,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:52,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16697611] [2022-07-23 06:43:52,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16697611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:52,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:52,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:52,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101982094] [2022-07-23 06:43:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:52,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:52,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:52,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:52,421 INFO L87 Difference]: Start difference. First operand 616 states and 820 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-23 06:43:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:52,703 INFO L93 Difference]: Finished difference Result 628 states and 837 transitions. [2022-07-23 06:43:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:43:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2022-07-23 06:43:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:52,704 INFO L225 Difference]: With dead ends: 628 [2022-07-23 06:43:52,705 INFO L226 Difference]: Without dead ends: 628 [2022-07-23 06:43:52,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:52,705 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 124 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:52,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1415 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:52,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-07-23 06:43:52,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 616. [2022-07-23 06:43:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 520 states have (on average 1.3134615384615385) internal successors, (683), 526 states have internal predecessors, (683), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-23 06:43:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 818 transitions. [2022-07-23 06:43:52,712 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 818 transitions. Word has length 53 [2022-07-23 06:43:52,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:52,712 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 818 transitions. [2022-07-23 06:43:52,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-23 06:43:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 818 transitions. [2022-07-23 06:43:52,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 06:43:52,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:52,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:52,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-23 06:43:52,714 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:52,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash -261050894, now seen corresponding path program 1 times [2022-07-23 06:43:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:52,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655017281] [2022-07-23 06:43:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:43:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:52,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:52,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655017281] [2022-07-23 06:43:52,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655017281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:52,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:52,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:43:52,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519090901] [2022-07-23 06:43:52,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:52,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:43:52,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:52,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:43:52,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:52,799 INFO L87 Difference]: Start difference. First operand 616 states and 818 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:53,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:53,404 INFO L93 Difference]: Finished difference Result 643 states and 852 transitions. [2022-07-23 06:43:53,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:43:53,404 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2022-07-23 06:43:53,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:53,405 INFO L225 Difference]: With dead ends: 643 [2022-07-23 06:43:53,405 INFO L226 Difference]: Without dead ends: 626 [2022-07-23 06:43:53,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:43:53,406 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 325 mSDsluCounter, 3520 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:53,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 3993 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-07-23 06:43:53,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 614. [2022-07-23 06:43:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 519 states have (on average 1.3121387283236994) internal successors, (681), 525 states have internal predecessors, (681), 60 states have call successors, (60), 27 states have call predecessors, (60), 34 states have return successors, (73), 61 states have call predecessors, (73), 56 states have call successors, (73) [2022-07-23 06:43:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 814 transitions. [2022-07-23 06:43:53,413 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 814 transitions. Word has length 52 [2022-07-23 06:43:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:53,413 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 814 transitions. [2022-07-23 06:43:53,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 814 transitions. [2022-07-23 06:43:53,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-23 06:43:53,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:53,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:53,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-23 06:43:53,415 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:53,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1698213256, now seen corresponding path program 1 times [2022-07-23 06:43:53,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:53,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409481770] [2022-07-23 06:43:53,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:53,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:43:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 06:43:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:53,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:53,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409481770] [2022-07-23 06:43:53,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409481770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:53,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:53,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:43:53,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383000406] [2022-07-23 06:43:53,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:53,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:43:53,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:43:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:53,467 INFO L87 Difference]: Start difference. First operand 614 states and 814 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:53,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:53,766 INFO L93 Difference]: Finished difference Result 657 states and 870 transitions. [2022-07-23 06:43:53,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-23 06:43:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:53,767 INFO L225 Difference]: With dead ends: 657 [2022-07-23 06:43:53,767 INFO L226 Difference]: Without dead ends: 606 [2022-07-23 06:43:53,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:43:53,768 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 262 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:53,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 2760 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-07-23 06:43:53,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 587. [2022-07-23 06:43:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 497 states have (on average 1.2977867203219315) internal successors, (645), 503 states have internal predecessors, (645), 55 states have call successors, (55), 27 states have call predecessors, (55), 34 states have return successors, (67), 56 states have call predecessors, (67), 51 states have call successors, (67) [2022-07-23 06:43:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 767 transitions. [2022-07-23 06:43:53,774 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 767 transitions. Word has length 51 [2022-07-23 06:43:53,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:53,775 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 767 transitions. [2022-07-23 06:43:53,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 767 transitions. [2022-07-23 06:43:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-23 06:43:53,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:53,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:53,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-23 06:43:53,776 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:53,777 INFO L85 PathProgramCache]: Analyzing trace with hash 673526006, now seen corresponding path program 1 times [2022-07-23 06:43:53,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:53,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680066444] [2022-07-23 06:43:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:53,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:43:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 06:43:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:53,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680066444] [2022-07-23 06:43:53,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680066444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:53,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:53,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:53,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071547651] [2022-07-23 06:43:53,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:53,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:53,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:53,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:53,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:53,812 INFO L87 Difference]: Start difference. First operand 587 states and 767 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:54,026 INFO L93 Difference]: Finished difference Result 593 states and 774 transitions. [2022-07-23 06:43:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:54,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-23 06:43:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:54,029 INFO L225 Difference]: With dead ends: 593 [2022-07-23 06:43:54,029 INFO L226 Difference]: Without dead ends: 593 [2022-07-23 06:43:54,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:54,029 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 98 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:54,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1982 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-07-23 06:43:54,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2022-07-23 06:43:54,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 489 states have (on average 1.294478527607362) internal successors, (633), 495 states have internal predecessors, (633), 53 states have call successors, (53), 27 states have call predecessors, (53), 34 states have return successors, (65), 54 states have call predecessors, (65), 49 states have call successors, (65) [2022-07-23 06:43:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 751 transitions. [2022-07-23 06:43:54,035 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 751 transitions. Word has length 51 [2022-07-23 06:43:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:54,036 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 751 transitions. [2022-07-23 06:43:54,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 751 transitions. [2022-07-23 06:43:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 06:43:54,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:54,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:54,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-23 06:43:54,037 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:54,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1072773224, now seen corresponding path program 1 times [2022-07-23 06:43:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:54,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483169921] [2022-07-23 06:43:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 06:43:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:54,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:54,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483169921] [2022-07-23 06:43:54,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483169921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:54,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:54,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:54,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687823344] [2022-07-23 06:43:54,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:54,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:54,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:54,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:54,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:54,072 INFO L87 Difference]: Start difference. First operand 577 states and 751 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:54,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:54,264 INFO L93 Difference]: Finished difference Result 589 states and 768 transitions. [2022-07-23 06:43:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:54,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-07-23 06:43:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:54,265 INFO L225 Difference]: With dead ends: 589 [2022-07-23 06:43:54,265 INFO L226 Difference]: Without dead ends: 584 [2022-07-23 06:43:54,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:54,267 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 171 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:54,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1738 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-07-23 06:43:54,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 572. [2022-07-23 06:43:54,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 485 states have (on average 1.2948453608247423) internal successors, (628), 491 states have internal predecessors, (628), 52 states have call successors, (52), 27 states have call predecessors, (52), 34 states have return successors, (64), 53 states have call predecessors, (64), 48 states have call successors, (64) [2022-07-23 06:43:54,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 744 transitions. [2022-07-23 06:43:54,273 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 744 transitions. Word has length 52 [2022-07-23 06:43:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:54,274 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 744 transitions. [2022-07-23 06:43:54,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 744 transitions. [2022-07-23 06:43:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 06:43:54,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:54,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:54,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-23 06:43:54,275 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:54,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1299527003, now seen corresponding path program 1 times [2022-07-23 06:43:54,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:54,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389351069] [2022-07-23 06:43:54,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:54,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:54,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:54,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389351069] [2022-07-23 06:43:54,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389351069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:54,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:54,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:54,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701376571] [2022-07-23 06:43:54,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:54,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:54,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:54,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:54,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:54,306 INFO L87 Difference]: Start difference. First operand 572 states and 744 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:54,560 INFO L93 Difference]: Finished difference Result 681 states and 887 transitions. [2022-07-23 06:43:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-07-23 06:43:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:54,562 INFO L225 Difference]: With dead ends: 681 [2022-07-23 06:43:54,562 INFO L226 Difference]: Without dead ends: 681 [2022-07-23 06:43:54,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:54,562 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 217 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:54,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1279 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:54,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-23 06:43:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 600. [2022-07-23 06:43:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 511 states have (on average 1.289628180039139) internal successors, (659), 517 states have internal predecessors, (659), 52 states have call successors, (52), 27 states have call predecessors, (52), 36 states have return successors, (66), 55 states have call predecessors, (66), 48 states have call successors, (66) [2022-07-23 06:43:54,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 777 transitions. [2022-07-23 06:43:54,585 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 777 transitions. Word has length 52 [2022-07-23 06:43:54,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:54,585 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 777 transitions. [2022-07-23 06:43:54,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:54,585 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 777 transitions. [2022-07-23 06:43:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 06:43:54,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:54,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:54,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-23 06:43:54,587 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:54,587 INFO L85 PathProgramCache]: Analyzing trace with hash 2075413267, now seen corresponding path program 1 times [2022-07-23 06:43:54,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:54,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975659547] [2022-07-23 06:43:54,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:54,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:54,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:54,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975659547] [2022-07-23 06:43:54,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975659547] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:54,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:54,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:54,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788291012] [2022-07-23 06:43:54,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:54,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:54,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:54,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:54,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:54,627 INFO L87 Difference]: Start difference. First operand 600 states and 777 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:55,022 INFO L93 Difference]: Finished difference Result 679 states and 884 transitions. [2022-07-23 06:43:55,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:55,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-23 06:43:55,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:55,024 INFO L225 Difference]: With dead ends: 679 [2022-07-23 06:43:55,024 INFO L226 Difference]: Without dead ends: 679 [2022-07-23 06:43:55,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:55,024 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 712 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:55,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1524 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-07-23 06:43:55,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 600. [2022-07-23 06:43:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 511 states have (on average 1.2876712328767124) internal successors, (658), 517 states have internal predecessors, (658), 52 states have call successors, (52), 27 states have call predecessors, (52), 36 states have return successors, (66), 55 states have call predecessors, (66), 48 states have call successors, (66) [2022-07-23 06:43:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 776 transitions. [2022-07-23 06:43:55,032 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 776 transitions. Word has length 53 [2022-07-23 06:43:55,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:55,033 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 776 transitions. [2022-07-23 06:43:55,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 776 transitions. [2022-07-23 06:43:55,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-23 06:43:55,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:55,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:55,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-23 06:43:55,034 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:55,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:55,035 INFO L85 PathProgramCache]: Analyzing trace with hash 726957118, now seen corresponding path program 1 times [2022-07-23 06:43:55,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:55,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948571435] [2022-07-23 06:43:55,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:55,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:43:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-23 06:43:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 06:43:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:55,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:55,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948571435] [2022-07-23 06:43:55,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948571435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:55,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:55,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:43:55,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191358163] [2022-07-23 06:43:55,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:55,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:43:55,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:55,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:43:55,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:55,137 INFO L87 Difference]: Start difference. First operand 600 states and 776 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-23 06:43:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:55,793 INFO L93 Difference]: Finished difference Result 652 states and 840 transitions. [2022-07-23 06:43:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:43:55,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2022-07-23 06:43:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:55,795 INFO L225 Difference]: With dead ends: 652 [2022-07-23 06:43:55,795 INFO L226 Difference]: Without dead ends: 635 [2022-07-23 06:43:55,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:43:55,795 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 243 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:55,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 4027 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:55,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-07-23 06:43:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 598. [2022-07-23 06:43:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 510 states have (on average 1.2862745098039217) internal successors, (656), 516 states have internal predecessors, (656), 51 states have call successors, (51), 27 states have call predecessors, (51), 36 states have return successors, (65), 54 states have call predecessors, (65), 47 states have call successors, (65) [2022-07-23 06:43:55,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 772 transitions. [2022-07-23 06:43:55,801 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 772 transitions. Word has length 59 [2022-07-23 06:43:55,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:55,802 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 772 transitions. [2022-07-23 06:43:55,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-23 06:43:55,802 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 772 transitions. [2022-07-23 06:43:55,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 06:43:55,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:55,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:55,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-23 06:43:55,805 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:55,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2135115312, now seen corresponding path program 1 times [2022-07-23 06:43:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:55,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976639475] [2022-07-23 06:43:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:55,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 06:43:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:55,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:55,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976639475] [2022-07-23 06:43:55,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976639475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:55,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:55,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-23 06:43:55,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742803904] [2022-07-23 06:43:55,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:55,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-23 06:43:55,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:55,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-23 06:43:55,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:55,936 INFO L87 Difference]: Start difference. First operand 598 states and 772 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:56,601 INFO L93 Difference]: Finished difference Result 627 states and 808 transitions. [2022-07-23 06:43:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 06:43:56,601 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2022-07-23 06:43:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:56,602 INFO L225 Difference]: With dead ends: 627 [2022-07-23 06:43:56,602 INFO L226 Difference]: Without dead ends: 606 [2022-07-23 06:43:56,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2022-07-23 06:43:56,603 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 235 mSDsluCounter, 3444 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3852 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:56,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 3852 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:56,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-07-23 06:43:56,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 594. [2022-07-23 06:43:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 507 states have (on average 1.2859960552268244) internal successors, (652), 513 states have internal predecessors, (652), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (64), 53 states have call predecessors, (64), 46 states have call successors, (64) [2022-07-23 06:43:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 766 transitions. [2022-07-23 06:43:56,618 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 766 transitions. Word has length 55 [2022-07-23 06:43:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:56,618 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 766 transitions. [2022-07-23 06:43:56,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 766 transitions. [2022-07-23 06:43:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 06:43:56,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:56,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:56,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-23 06:43:56,620 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:56,620 INFO L85 PathProgramCache]: Analyzing trace with hash 538585810, now seen corresponding path program 1 times [2022-07-23 06:43:56,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:56,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007428860] [2022-07-23 06:43:56,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:56,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:43:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:56,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:56,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007428860] [2022-07-23 06:43:56,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007428860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:56,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:56,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:56,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568205796] [2022-07-23 06:43:56,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:56,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:56,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:56,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:56,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:56,669 INFO L87 Difference]: Start difference. First operand 594 states and 766 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:56,861 INFO L93 Difference]: Finished difference Result 606 states and 783 transitions. [2022-07-23 06:43:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-23 06:43:56,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:56,862 INFO L225 Difference]: With dead ends: 606 [2022-07-23 06:43:56,862 INFO L226 Difference]: Without dead ends: 601 [2022-07-23 06:43:56,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:56,863 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 171 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:56,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1662 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:56,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-07-23 06:43:56,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 589. [2022-07-23 06:43:56,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 503 states have (on average 1.286282306163022) internal successors, (647), 509 states have internal predecessors, (647), 49 states have call successors, (49), 27 states have call predecessors, (49), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2022-07-23 06:43:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 759 transitions. [2022-07-23 06:43:56,869 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 759 transitions. Word has length 54 [2022-07-23 06:43:56,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:56,869 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 759 transitions. [2022-07-23 06:43:56,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:56,870 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 759 transitions. [2022-07-23 06:43:56,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 06:43:56,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:56,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:56,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-23 06:43:56,871 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:56,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:56,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1724995102, now seen corresponding path program 1 times [2022-07-23 06:43:56,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:56,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100267000] [2022-07-23 06:43:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:56,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-23 06:43:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:56,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:56,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100267000] [2022-07-23 06:43:56,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100267000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:56,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:56,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:56,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633132980] [2022-07-23 06:43:56,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:56,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:56,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:56,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:56,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:56,931 INFO L87 Difference]: Start difference. First operand 589 states and 759 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:57,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:57,243 INFO L93 Difference]: Finished difference Result 621 states and 799 transitions. [2022-07-23 06:43:57,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 06:43:57,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-23 06:43:57,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:57,244 INFO L225 Difference]: With dead ends: 621 [2022-07-23 06:43:57,244 INFO L226 Difference]: Without dead ends: 598 [2022-07-23 06:43:57,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:57,245 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 232 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:57,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 3051 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:57,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-07-23 06:43:57,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 586. [2022-07-23 06:43:57,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 501 states have (on average 1.2854291417165669) internal successors, (644), 507 states have internal predecessors, (644), 48 states have call successors, (48), 27 states have call predecessors, (48), 36 states have return successors, (62), 51 states have call predecessors, (62), 44 states have call successors, (62) [2022-07-23 06:43:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 754 transitions. [2022-07-23 06:43:57,251 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 754 transitions. Word has length 54 [2022-07-23 06:43:57,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:57,251 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 754 transitions. [2022-07-23 06:43:57,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 754 transitions. [2022-07-23 06:43:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 06:43:57,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:57,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:57,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-23 06:43:57,252 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:57,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash -726384384, now seen corresponding path program 1 times [2022-07-23 06:43:57,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:57,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42170385] [2022-07-23 06:43:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:57,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:57,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:57,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:57,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42170385] [2022-07-23 06:43:57,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42170385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:57,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:57,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:57,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759653402] [2022-07-23 06:43:57,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:57,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:57,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:57,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:57,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:57,310 INFO L87 Difference]: Start difference. First operand 586 states and 754 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:57,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:57,689 INFO L93 Difference]: Finished difference Result 665 states and 860 transitions. [2022-07-23 06:43:57,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 06:43:57,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-23 06:43:57,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:57,691 INFO L225 Difference]: With dead ends: 665 [2022-07-23 06:43:57,691 INFO L226 Difference]: Without dead ends: 665 [2022-07-23 06:43:57,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:57,692 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 688 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:57,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1442 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:57,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-07-23 06:43:57,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 584. [2022-07-23 06:43:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 499 states have (on average 1.2845691382765532) internal successors, (641), 505 states have internal predecessors, (641), 48 states have call successors, (48), 27 states have call predecessors, (48), 36 states have return successors, (62), 51 states have call predecessors, (62), 44 states have call successors, (62) [2022-07-23 06:43:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 751 transitions. [2022-07-23 06:43:57,709 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 751 transitions. Word has length 54 [2022-07-23 06:43:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:57,709 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 751 transitions. [2022-07-23 06:43:57,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 751 transitions. [2022-07-23 06:43:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 06:43:57,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:57,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:57,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-23 06:43:57,711 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:57,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:57,711 INFO L85 PathProgramCache]: Analyzing trace with hash -726107554, now seen corresponding path program 1 times [2022-07-23 06:43:57,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:57,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880287260] [2022-07-23 06:43:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:57,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:57,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:57,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:57,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880287260] [2022-07-23 06:43:57,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880287260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:57,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:57,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:57,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245728538] [2022-07-23 06:43:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:57,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:57,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:57,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:57,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:57,821 INFO L87 Difference]: Start difference. First operand 584 states and 751 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:58,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:58,328 INFO L93 Difference]: Finished difference Result 603 states and 775 transitions. [2022-07-23 06:43:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:58,328 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-07-23 06:43:58,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:58,329 INFO L225 Difference]: With dead ends: 603 [2022-07-23 06:43:58,329 INFO L226 Difference]: Without dead ends: 558 [2022-07-23 06:43:58,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:43:58,330 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 279 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:58,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 2499 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 06:43:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-23 06:43:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 542. [2022-07-23 06:43:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 459 states have (on average 1.2745098039215685) internal successors, (585), 465 states have internal predecessors, (585), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (60), 49 states have call predecessors, (60), 44 states have call successors, (60) [2022-07-23 06:43:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 693 transitions. [2022-07-23 06:43:58,335 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 693 transitions. Word has length 54 [2022-07-23 06:43:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:58,336 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 693 transitions. [2022-07-23 06:43:58,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 693 transitions. [2022-07-23 06:43:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 06:43:58,337 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:58,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:58,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-23 06:43:58,337 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:58,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:58,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1795419470, now seen corresponding path program 1 times [2022-07-23 06:43:58,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:58,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342549504] [2022-07-23 06:43:58,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:58,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:43:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:58,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:58,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342549504] [2022-07-23 06:43:58,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342549504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:58,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:58,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:58,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949431394] [2022-07-23 06:43:58,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:58,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:58,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:58,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:58,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:58,378 INFO L87 Difference]: Start difference. First operand 542 states and 693 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:43:58,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:58,670 INFO L93 Difference]: Finished difference Result 572 states and 730 transitions. [2022-07-23 06:43:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:58,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-07-23 06:43:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:58,672 INFO L225 Difference]: With dead ends: 572 [2022-07-23 06:43:58,672 INFO L226 Difference]: Without dead ends: 572 [2022-07-23 06:43:58,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:58,672 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 178 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:58,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1748 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-07-23 06:43:58,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 542. [2022-07-23 06:43:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 459 states have (on average 1.2723311546840959) internal successors, (584), 465 states have internal predecessors, (584), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (60), 49 states have call predecessors, (60), 44 states have call successors, (60) [2022-07-23 06:43:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 692 transitions. [2022-07-23 06:43:58,678 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 692 transitions. Word has length 56 [2022-07-23 06:43:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:58,678 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 692 transitions. [2022-07-23 06:43:58,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:43:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 692 transitions. [2022-07-23 06:43:58,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 06:43:58,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:58,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:58,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-23 06:43:58,686 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:58,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:58,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1818051724, now seen corresponding path program 1 times [2022-07-23 06:43:58,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:58,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970449704] [2022-07-23 06:43:58,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:58,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:43:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:58,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:58,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:58,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970449704] [2022-07-23 06:43:58,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970449704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:58,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:58,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:43:58,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900852413] [2022-07-23 06:43:58,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:58,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:43:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:43:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:58,780 INFO L87 Difference]: Start difference. First operand 542 states and 692 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:59,352 INFO L93 Difference]: Finished difference Result 594 states and 756 transitions. [2022-07-23 06:43:59,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:43:59,354 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2022-07-23 06:43:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:59,356 INFO L225 Difference]: With dead ends: 594 [2022-07-23 06:43:59,356 INFO L226 Difference]: Without dead ends: 567 [2022-07-23 06:43:59,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:43:59,356 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 266 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3198 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:59,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 3198 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-07-23 06:43:59,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 537. [2022-07-23 06:43:59,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 455 states have (on average 1.268131868131868) internal successors, (577), 461 states have internal predecessors, (577), 47 states have call successors, (47), 27 states have call predecessors, (47), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2022-07-23 06:43:59,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 682 transitions. [2022-07-23 06:43:59,362 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 682 transitions. Word has length 56 [2022-07-23 06:43:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:59,362 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 682 transitions. [2022-07-23 06:43:59,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:43:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 682 transitions. [2022-07-23 06:43:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 06:43:59,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:59,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:59,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-23 06:43:59,364 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash -356987344, now seen corresponding path program 1 times [2022-07-23 06:43:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:59,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148729027] [2022-07-23 06:43:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:59,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:43:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:59,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:59,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148729027] [2022-07-23 06:43:59,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148729027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:59,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:59,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:59,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638804793] [2022-07-23 06:43:59,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:59,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:59,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:59,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:59,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:59,406 INFO L87 Difference]: Start difference. First operand 537 states and 682 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:43:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:59,714 INFO L93 Difference]: Finished difference Result 549 states and 699 transitions. [2022-07-23 06:43:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:59,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-07-23 06:43:59,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:59,716 INFO L225 Difference]: With dead ends: 549 [2022-07-23 06:43:59,716 INFO L226 Difference]: Without dead ends: 543 [2022-07-23 06:43:59,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:59,716 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 159 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:59,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1829 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:59,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-07-23 06:43:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 531. [2022-07-23 06:43:59,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 450 states have (on average 1.268888888888889) internal successors, (571), 456 states have internal predecessors, (571), 46 states have call successors, (46), 27 states have call predecessors, (46), 34 states have return successors, (57), 47 states have call predecessors, (57), 42 states have call successors, (57) [2022-07-23 06:43:59,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 674 transitions. [2022-07-23 06:43:59,721 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 674 transitions. Word has length 56 [2022-07-23 06:43:59,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:59,722 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 674 transitions. [2022-07-23 06:43:59,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:43:59,722 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 674 transitions. [2022-07-23 06:43:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-23 06:43:59,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:59,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:59,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-23 06:43:59,723 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:59,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2107046685, now seen corresponding path program 1 times [2022-07-23 06:43:59,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:59,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925046449] [2022-07-23 06:43:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:59,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:43:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-23 06:43:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:59,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925046449] [2022-07-23 06:43:59,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925046449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:59,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:59,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:43:59,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215655235] [2022-07-23 06:43:59,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:59,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:43:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:43:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:59,813 INFO L87 Difference]: Start difference. First operand 531 states and 674 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-23 06:44:00,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:00,366 INFO L93 Difference]: Finished difference Result 560 states and 710 transitions. [2022-07-23 06:44:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:44:00,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 62 [2022-07-23 06:44:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:00,367 INFO L225 Difference]: With dead ends: 560 [2022-07-23 06:44:00,367 INFO L226 Difference]: Without dead ends: 541 [2022-07-23 06:44:00,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:44:00,368 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 304 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:00,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 2950 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:44:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-07-23 06:44:00,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 529. [2022-07-23 06:44:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 448 states have (on average 1.2678571428571428) internal successors, (568), 454 states have internal predecessors, (568), 46 states have call successors, (46), 27 states have call predecessors, (46), 34 states have return successors, (57), 47 states have call predecessors, (57), 42 states have call successors, (57) [2022-07-23 06:44:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 671 transitions. [2022-07-23 06:44:00,373 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 671 transitions. Word has length 62 [2022-07-23 06:44:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:00,373 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 671 transitions. [2022-07-23 06:44:00,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-23 06:44:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 671 transitions. [2022-07-23 06:44:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-23 06:44:00,375 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:00,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:00,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-23 06:44:00,376 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:00,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:00,376 INFO L85 PathProgramCache]: Analyzing trace with hash -790506152, now seen corresponding path program 1 times [2022-07-23 06:44:00,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:00,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179365731] [2022-07-23 06:44:00,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:00,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:44:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:44:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:44:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:00,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:00,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179365731] [2022-07-23 06:44:00,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179365731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:00,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:00,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:00,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264519281] [2022-07-23 06:44:00,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:00,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:00,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:00,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:00,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:00,434 INFO L87 Difference]: Start difference. First operand 529 states and 671 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:00,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:00,719 INFO L93 Difference]: Finished difference Result 533 states and 675 transitions. [2022-07-23 06:44:00,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:00,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2022-07-23 06:44:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:00,720 INFO L225 Difference]: With dead ends: 533 [2022-07-23 06:44:00,720 INFO L226 Difference]: Without dead ends: 525 [2022-07-23 06:44:00,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:00,720 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 159 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:00,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1693 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:44:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-07-23 06:44:00,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 513. [2022-07-23 06:44:00,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 435 states have (on average 1.264367816091954) internal successors, (550), 441 states have internal predecessors, (550), 43 states have call successors, (43), 27 states have call predecessors, (43), 34 states have return successors, (53), 44 states have call predecessors, (53), 39 states have call successors, (53) [2022-07-23 06:44:00,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 646 transitions. [2022-07-23 06:44:00,725 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 646 transitions. Word has length 63 [2022-07-23 06:44:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:00,725 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 646 transitions. [2022-07-23 06:44:00,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 646 transitions. [2022-07-23 06:44:00,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 06:44:00,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:00,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:00,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-23 06:44:00,726 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:00,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:00,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1208974705, now seen corresponding path program 1 times [2022-07-23 06:44:00,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:00,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690798917] [2022-07-23 06:44:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:00,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 06:44:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:44:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:00,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:00,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690798917] [2022-07-23 06:44:00,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690798917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:00,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:00,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:00,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228505905] [2022-07-23 06:44:00,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:00,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:00,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:00,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:00,770 INFO L87 Difference]: Start difference. First operand 513 states and 646 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:01,049 INFO L93 Difference]: Finished difference Result 524 states and 660 transitions. [2022-07-23 06:44:01,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:01,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2022-07-23 06:44:01,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:01,050 INFO L225 Difference]: With dead ends: 524 [2022-07-23 06:44:01,050 INFO L226 Difference]: Without dead ends: 512 [2022-07-23 06:44:01,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:01,051 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 176 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:01,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1452 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:44:01,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-07-23 06:44:01,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 500. [2022-07-23 06:44:01,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 423 states have (on average 1.260047281323877) internal successors, (533), 429 states have internal predecessors, (533), 42 states have call successors, (42), 27 states have call predecessors, (42), 34 states have return successors, (52), 43 states have call predecessors, (52), 38 states have call successors, (52) [2022-07-23 06:44:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 627 transitions. [2022-07-23 06:44:01,055 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 627 transitions. Word has length 58 [2022-07-23 06:44:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:01,056 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 627 transitions. [2022-07-23 06:44:01,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 627 transitions. [2022-07-23 06:44:01,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 06:44:01,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:01,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:01,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-23 06:44:01,057 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:01,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:01,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1375988349, now seen corresponding path program 1 times [2022-07-23 06:44:01,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:01,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085127293] [2022-07-23 06:44:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:01,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:44:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:44:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:01,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:01,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085127293] [2022-07-23 06:44:01,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085127293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:01,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:01,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:44:01,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009903465] [2022-07-23 06:44:01,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:01,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:44:01,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:44:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:01,196 INFO L87 Difference]: Start difference. First operand 500 states and 627 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:44:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:02,178 INFO L93 Difference]: Finished difference Result 932 states and 1172 transitions. [2022-07-23 06:44:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-23 06:44:02,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2022-07-23 06:44:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:02,180 INFO L225 Difference]: With dead ends: 932 [2022-07-23 06:44:02,180 INFO L226 Difference]: Without dead ends: 903 [2022-07-23 06:44:02,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2022-07-23 06:44:02,181 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 691 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:02,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 2310 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:44:02,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-07-23 06:44:02,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 694. [2022-07-23 06:44:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 583 states have (on average 1.2727272727272727) internal successors, (742), 595 states have internal predecessors, (742), 59 states have call successors, (59), 40 states have call predecessors, (59), 51 states have return successors, (77), 58 states have call predecessors, (77), 55 states have call successors, (77) [2022-07-23 06:44:02,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 878 transitions. [2022-07-23 06:44:02,188 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 878 transitions. Word has length 58 [2022-07-23 06:44:02,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:02,188 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 878 transitions. [2022-07-23 06:44:02,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:44:02,188 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 878 transitions. [2022-07-23 06:44:02,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 06:44:02,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:02,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:02,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-23 06:44:02,190 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:02,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:02,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2042959941, now seen corresponding path program 1 times [2022-07-23 06:44:02,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:02,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623738140] [2022-07-23 06:44:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:02,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:44:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:44:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:02,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:02,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623738140] [2022-07-23 06:44:02,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623738140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:02,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:02,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:02,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650395038] [2022-07-23 06:44:02,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:02,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:02,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:02,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:02,229 INFO L87 Difference]: Start difference. First operand 694 states and 878 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:44:02,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:02,676 INFO L93 Difference]: Finished difference Result 920 states and 1159 transitions. [2022-07-23 06:44:02,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:44:02,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2022-07-23 06:44:02,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:02,679 INFO L225 Difference]: With dead ends: 920 [2022-07-23 06:44:02,679 INFO L226 Difference]: Without dead ends: 920 [2022-07-23 06:44:02,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:02,679 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1048 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:02,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 1669 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 06:44:02,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-07-23 06:44:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 513. [2022-07-23 06:44:02,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 435 states have (on average 1.2551724137931035) internal successors, (546), 440 states have internal predecessors, (546), 42 states have call successors, (42), 29 states have call predecessors, (42), 35 states have return successors, (52), 43 states have call predecessors, (52), 38 states have call successors, (52) [2022-07-23 06:44:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 640 transitions. [2022-07-23 06:44:02,686 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 640 transitions. Word has length 58 [2022-07-23 06:44:02,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:02,686 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 640 transitions. [2022-07-23 06:44:02,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:44:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 640 transitions. [2022-07-23 06:44:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-23 06:44:02,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:02,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:02,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-23 06:44:02,688 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1970957845, now seen corresponding path program 1 times [2022-07-23 06:44:02,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:02,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284650700] [2022-07-23 06:44:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-23 06:44:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-23 06:44:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:44:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:02,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:02,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284650700] [2022-07-23 06:44:02,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284650700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:02,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:02,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:44:02,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218586680] [2022-07-23 06:44:02,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:02,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:44:02,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:02,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:44:02,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:02,791 INFO L87 Difference]: Start difference. First operand 513 states and 640 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-23 06:44:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:03,393 INFO L93 Difference]: Finished difference Result 539 states and 671 transitions. [2022-07-23 06:44:03,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:44:03,393 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2022-07-23 06:44:03,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:03,394 INFO L225 Difference]: With dead ends: 539 [2022-07-23 06:44:03,394 INFO L226 Difference]: Without dead ends: 504 [2022-07-23 06:44:03,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:44:03,395 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 218 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:03,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 2683 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:44:03,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-07-23 06:44:03,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 492. [2022-07-23 06:44:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 419 states have (on average 1.2553699284009547) internal successors, (526), 424 states have internal predecessors, (526), 38 states have call successors, (38), 28 states have call predecessors, (38), 34 states have return successors, (47), 39 states have call predecessors, (47), 34 states have call successors, (47) [2022-07-23 06:44:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 611 transitions. [2022-07-23 06:44:03,399 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 611 transitions. Word has length 60 [2022-07-23 06:44:03,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:03,399 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 611 transitions. [2022-07-23 06:44:03,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-23 06:44:03,400 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 611 transitions. [2022-07-23 06:44:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 06:44:03,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:03,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:03,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-23 06:44:03,401 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:03,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:03,401 INFO L85 PathProgramCache]: Analyzing trace with hash 789888525, now seen corresponding path program 1 times [2022-07-23 06:44:03,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:03,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812338608] [2022-07-23 06:44:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:03,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:44:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 06:44:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:03,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:03,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812338608] [2022-07-23 06:44:03,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812338608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:03,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:03,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:03,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256039880] [2022-07-23 06:44:03,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:03,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:03,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:03,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:03,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:03,437 INFO L87 Difference]: Start difference. First operand 492 states and 611 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:03,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:03,612 INFO L93 Difference]: Finished difference Result 502 states and 623 transitions. [2022-07-23 06:44:03,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:03,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2022-07-23 06:44:03,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:03,614 INFO L225 Difference]: With dead ends: 502 [2022-07-23 06:44:03,614 INFO L226 Difference]: Without dead ends: 496 [2022-07-23 06:44:03,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:03,614 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 148 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:03,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1228 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:03,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-23 06:44:03,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 484. [2022-07-23 06:44:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 412 states have (on average 1.2548543689320388) internal successors, (517), 417 states have internal predecessors, (517), 37 states have call successors, (37), 28 states have call predecessors, (37), 34 states have return successors, (45), 38 states have call predecessors, (45), 33 states have call successors, (45) [2022-07-23 06:44:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 599 transitions. [2022-07-23 06:44:03,619 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 599 transitions. Word has length 58 [2022-07-23 06:44:03,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:03,619 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 599 transitions. [2022-07-23 06:44:03,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:03,619 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 599 transitions. [2022-07-23 06:44:03,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-23 06:44:03,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:03,621 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:03,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-23 06:44:03,621 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:03,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:03,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2051318318, now seen corresponding path program 1 times [2022-07-23 06:44:03,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:03,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728974697] [2022-07-23 06:44:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:03,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:44:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 06:44:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 06:44:03,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:03,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728974697] [2022-07-23 06:44:03,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728974697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:03,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:03,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:03,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396089301] [2022-07-23 06:44:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:03,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:03,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:03,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:03,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:03,666 INFO L87 Difference]: Start difference. First operand 484 states and 599 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:03,814 INFO L93 Difference]: Finished difference Result 496 states and 614 transitions. [2022-07-23 06:44:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:03,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2022-07-23 06:44:03,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:03,815 INFO L225 Difference]: With dead ends: 496 [2022-07-23 06:44:03,815 INFO L226 Difference]: Without dead ends: 486 [2022-07-23 06:44:03,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:03,815 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 148 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:03,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1193 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:03,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-07-23 06:44:03,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 474. [2022-07-23 06:44:03,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 404 states have (on average 1.254950495049505) internal successors, (507), 409 states have internal predecessors, (507), 35 states have call successors, (35), 28 states have call predecessors, (35), 34 states have return successors, (43), 36 states have call predecessors, (43), 31 states have call successors, (43) [2022-07-23 06:44:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 585 transitions. [2022-07-23 06:44:03,819 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 585 transitions. Word has length 60 [2022-07-23 06:44:03,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:03,820 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 585 transitions. [2022-07-23 06:44:03,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 585 transitions. [2022-07-23 06:44:03,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-23 06:44:03,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:03,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:03,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-23 06:44:03,821 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:03,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:03,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1819248512, now seen corresponding path program 1 times [2022-07-23 06:44:03,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:03,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906664756] [2022-07-23 06:44:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:03,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:44:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:44:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:44:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:03,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906664756] [2022-07-23 06:44:03,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906664756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:03,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:03,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 06:44:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554420376] [2022-07-23 06:44:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:03,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 06:44:03,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 06:44:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:03,917 INFO L87 Difference]: Start difference. First operand 474 states and 585 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:44:04,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:04,584 INFO L93 Difference]: Finished difference Result 765 states and 956 transitions. [2022-07-23 06:44:04,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 06:44:04,585 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2022-07-23 06:44:04,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:04,586 INFO L225 Difference]: With dead ends: 765 [2022-07-23 06:44:04,586 INFO L226 Difference]: Without dead ends: 732 [2022-07-23 06:44:04,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-07-23 06:44:04,586 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 607 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:04,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2881 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:44:04,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-23 06:44:04,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 368. [2022-07-23 06:44:04,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 310 states have (on average 1.270967741935484) internal successors, (394), 314 states have internal predecessors, (394), 30 states have call successors, (30), 24 states have call predecessors, (30), 27 states have return successors, (36), 29 states have call predecessors, (36), 27 states have call successors, (36) [2022-07-23 06:44:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 460 transitions. [2022-07-23 06:44:04,593 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 460 transitions. Word has length 60 [2022-07-23 06:44:04,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:04,593 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 460 transitions. [2022-07-23 06:44:04,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 06:44:04,593 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 460 transitions. [2022-07-23 06:44:04,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-23 06:44:04,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:04,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:04,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-23 06:44:04,594 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:04,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1463057072, now seen corresponding path program 1 times [2022-07-23 06:44:04,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:04,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708928765] [2022-07-23 06:44:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-23 06:44:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:04,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:04,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708928765] [2022-07-23 06:44:04,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708928765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:04,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:04,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:44:04,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445087208] [2022-07-23 06:44:04,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:04,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:44:04,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:04,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:44:04,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:04,695 INFO L87 Difference]: Start difference. First operand 368 states and 460 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:44:04,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:04,948 INFO L93 Difference]: Finished difference Result 373 states and 465 transitions. [2022-07-23 06:44:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:04,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2022-07-23 06:44:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:04,950 INFO L225 Difference]: With dead ends: 373 [2022-07-23 06:44:04,950 INFO L226 Difference]: Without dead ends: 373 [2022-07-23 06:44:04,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:04,950 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 113 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:04,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1209 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-07-23 06:44:04,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 361. [2022-07-23 06:44:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 303 states have (on average 1.2640264026402641) internal successors, (383), 307 states have internal predecessors, (383), 30 states have call successors, (30), 24 states have call predecessors, (30), 27 states have return successors, (36), 29 states have call predecessors, (36), 27 states have call successors, (36) [2022-07-23 06:44:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 449 transitions. [2022-07-23 06:44:04,953 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 449 transitions. Word has length 64 [2022-07-23 06:44:04,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:04,954 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 449 transitions. [2022-07-23 06:44:04,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:44:04,954 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 449 transitions. [2022-07-23 06:44:04,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-23 06:44:04,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:04,954 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:04,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-23 06:44:04,954 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:04,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:04,955 INFO L85 PathProgramCache]: Analyzing trace with hash 659665596, now seen corresponding path program 1 times [2022-07-23 06:44:04,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:04,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853870970] [2022-07-23 06:44:04,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:04,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 06:44:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 06:44:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:04,991 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 06:44:04,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:04,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853870970] [2022-07-23 06:44:04,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853870970] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 06:44:04,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719857478] [2022-07-23 06:44:04,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:04,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 06:44:04,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 06:44:04,994 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) [2022-07-23 06:44:04,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 06:44:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:05,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 06:44:05,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 06:44:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:05,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 06:44:05,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719857478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:05,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 06:44:05,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-07-23 06:44:05,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509628456] [2022-07-23 06:44:05,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:05,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:05,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:05,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:05,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:05,199 INFO L87 Difference]: Start difference. First operand 361 states and 449 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:05,207 INFO L93 Difference]: Finished difference Result 346 states and 431 transitions. [2022-07-23 06:44:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 62 [2022-07-23 06:44:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:05,208 INFO L225 Difference]: With dead ends: 346 [2022-07-23 06:44:05,209 INFO L226 Difference]: Without dead ends: 332 [2022-07-23 06:44:05,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:05,209 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:05,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 917 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-23 06:44:05,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-07-23 06:44:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 280 states have (on average 1.275) internal successors, (357), 283 states have internal predecessors, (357), 27 states have call successors, (27), 22 states have call predecessors, (27), 24 states have return successors, (32), 26 states have call predecessors, (32), 24 states have call successors, (32) [2022-07-23 06:44:05,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 416 transitions. [2022-07-23 06:44:05,229 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 416 transitions. Word has length 62 [2022-07-23 06:44:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:05,229 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 416 transitions. [2022-07-23 06:44:05,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 416 transitions. [2022-07-23 06:44:05,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-23 06:44:05,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:05,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:05,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 06:44:05,442 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,SelfDestructingSolverStorable66 [2022-07-23 06:44:05,443 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:05,443 INFO L85 PathProgramCache]: Analyzing trace with hash -747836141, now seen corresponding path program 1 times [2022-07-23 06:44:05,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:05,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195793552] [2022-07-23 06:44:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:05,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:05,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:44:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:44:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:05,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:05,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195793552] [2022-07-23 06:44:05,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195793552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:05,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:05,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-23 06:44:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919475651] [2022-07-23 06:44:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:05,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 06:44:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 06:44:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:44:05,603 INFO L87 Difference]: Start difference. First operand 332 states and 416 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:44:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:06,066 INFO L93 Difference]: Finished difference Result 343 states and 430 transitions. [2022-07-23 06:44:06,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:44:06,066 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-07-23 06:44:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:06,067 INFO L225 Difference]: With dead ends: 343 [2022-07-23 06:44:06,067 INFO L226 Difference]: Without dead ends: 270 [2022-07-23 06:44:06,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-07-23 06:44:06,067 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 154 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:06,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1699 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 06:44:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-23 06:44:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 264. [2022-07-23 06:44:06,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 220 states have (on average 1.3) internal successors, (286), 222 states have internal predecessors, (286), 22 states have call successors, (22), 19 states have call predecessors, (22), 21 states have return successors, (28), 22 states have call predecessors, (28), 20 states have call successors, (28) [2022-07-23 06:44:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 336 transitions. [2022-07-23 06:44:06,070 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 336 transitions. Word has length 64 [2022-07-23 06:44:06,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:06,070 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 336 transitions. [2022-07-23 06:44:06,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:44:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 336 transitions. [2022-07-23 06:44:06,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-23 06:44:06,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:06,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:06,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-23 06:44:06,071 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash 611039127, now seen corresponding path program 1 times [2022-07-23 06:44:06,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:06,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660805181] [2022-07-23 06:44:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:44:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:06,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:06,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660805181] [2022-07-23 06:44:06,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660805181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:06,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:06,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:44:06,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686640788] [2022-07-23 06:44:06,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:06,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:44:06,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:06,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:44:06,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:06,160 INFO L87 Difference]: Start difference. First operand 264 states and 336 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 06:44:06,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:06,413 INFO L93 Difference]: Finished difference Result 270 states and 342 transitions. [2022-07-23 06:44:06,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:06,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2022-07-23 06:44:06,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:06,414 INFO L225 Difference]: With dead ends: 270 [2022-07-23 06:44:06,414 INFO L226 Difference]: Without dead ends: 270 [2022-07-23 06:44:06,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-07-23 06:44:06,415 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 192 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:06,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 799 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:06,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-23 06:44:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 264. [2022-07-23 06:44:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 220 states have (on average 1.2954545454545454) internal successors, (285), 222 states have internal predecessors, (285), 22 states have call successors, (22), 19 states have call predecessors, (22), 21 states have return successors, (28), 22 states have call predecessors, (28), 20 states have call successors, (28) [2022-07-23 06:44:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 335 transitions. [2022-07-23 06:44:06,417 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 335 transitions. Word has length 68 [2022-07-23 06:44:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:06,417 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 335 transitions. [2022-07-23 06:44:06,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 06:44:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 335 transitions. [2022-07-23 06:44:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-23 06:44:06,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:06,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:06,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-23 06:44:06,418 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:06,419 INFO L85 PathProgramCache]: Analyzing trace with hash -993138030, now seen corresponding path program 1 times [2022-07-23 06:44:06,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:06,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702712988] [2022-07-23 06:44:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:06,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:06,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:06,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702712988] [2022-07-23 06:44:06,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702712988] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:06,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:06,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:06,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791840857] [2022-07-23 06:44:06,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:06,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:06,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:06,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:06,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:06,494 INFO L87 Difference]: Start difference. First operand 264 states and 335 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 06:44:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:06,665 INFO L93 Difference]: Finished difference Result 216 states and 264 transitions. [2022-07-23 06:44:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:06,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2022-07-23 06:44:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:06,666 INFO L225 Difference]: With dead ends: 216 [2022-07-23 06:44:06,666 INFO L226 Difference]: Without dead ends: 216 [2022-07-23 06:44:06,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:44:06,666 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 97 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:06,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 660 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:06,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-07-23 06:44:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 175. [2022-07-23 06:44:06,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 145 states have (on average 1.2344827586206897) internal successors, (179), 146 states have internal predecessors, (179), 15 states have call successors, (15), 13 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 14 states have call successors, (17) [2022-07-23 06:44:06,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2022-07-23 06:44:06,668 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 70 [2022-07-23 06:44:06,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:06,668 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2022-07-23 06:44:06,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 06:44:06,669 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2022-07-23 06:44:06,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-23 06:44:06,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:06,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:06,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-23 06:44:06,669 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:06,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash -365687255, now seen corresponding path program 1 times [2022-07-23 06:44:06,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:06,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928131430] [2022-07-23 06:44:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:06,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-23 06:44:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:06,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:06,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928131430] [2022-07-23 06:44:06,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928131430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:06,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:06,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:44:06,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219690995] [2022-07-23 06:44:06,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:06,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:44:06,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:06,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:44:06,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:06,751 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 06:44:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:06,967 INFO L93 Difference]: Finished difference Result 221 states and 263 transitions. [2022-07-23 06:44:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:44:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2022-07-23 06:44:06,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:06,968 INFO L225 Difference]: With dead ends: 221 [2022-07-23 06:44:06,968 INFO L226 Difference]: Without dead ends: 185 [2022-07-23 06:44:06,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:44:06,968 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 198 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:06,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 899 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:06,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-07-23 06:44:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 173. [2022-07-23 06:44:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 143 states have (on average 1.2027972027972027) internal successors, (172), 144 states have internal predecessors, (172), 15 states have call successors, (15), 13 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 14 states have call successors, (17) [2022-07-23 06:44:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 204 transitions. [2022-07-23 06:44:06,970 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 204 transitions. Word has length 84 [2022-07-23 06:44:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:06,971 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 204 transitions. [2022-07-23 06:44:06,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 06:44:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 204 transitions. [2022-07-23 06:44:06,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-23 06:44:06,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:06,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:06,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-23 06:44:06,971 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:06,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:06,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1430253116, now seen corresponding path program 1 times [2022-07-23 06:44:06,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:06,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642212270] [2022-07-23 06:44:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:06,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 06:44:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 06:44:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:44:07,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:07,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642212270] [2022-07-23 06:44:07,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642212270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:07,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:07,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:44:07,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110981975] [2022-07-23 06:44:07,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:07,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:44:07,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:07,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:44:07,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:07,050 INFO L87 Difference]: Start difference. First operand 173 states and 204 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 06:44:07,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:07,223 INFO L93 Difference]: Finished difference Result 198 states and 231 transitions. [2022-07-23 06:44:07,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:07,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 86 [2022-07-23 06:44:07,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:07,224 INFO L225 Difference]: With dead ends: 198 [2022-07-23 06:44:07,224 INFO L226 Difference]: Without dead ends: 153 [2022-07-23 06:44:07,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-23 06:44:07,224 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 88 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:07,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 863 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-07-23 06:44:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2022-07-23 06:44:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 116 states have (on average 1.1637931034482758) internal successors, (135), 117 states have internal predecessors, (135), 12 states have call successors, (12), 11 states have call predecessors, (12), 12 states have return successors, (13), 12 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-23 06:44:07,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2022-07-23 06:44:07,226 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 86 [2022-07-23 06:44:07,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:07,226 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2022-07-23 06:44:07,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 06:44:07,226 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2022-07-23 06:44:07,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 06:44:07,227 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:07,227 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:07,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-23 06:44:07,227 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:07,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash -336818959, now seen corresponding path program 1 times [2022-07-23 06:44:07,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:07,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979044317] [2022-07-23 06:44:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:07,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:44:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 06:44:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-23 06:44:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 06:44:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 06:44:07,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:07,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979044317] [2022-07-23 06:44:07,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979044317] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 06:44:07,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532153752] [2022-07-23 06:44:07,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:07,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 06:44:07,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 06:44:07,320 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) [2022-07-23 06:44:07,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 06:44:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 06:44:07,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 06:44:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 06:44:07,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 06:44:07,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532153752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:07,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 06:44:07,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-07-23 06:44:07,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131140462] [2022-07-23 06:44:07,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:07,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:07,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:07,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:07,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:07,484 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:07,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:07,489 INFO L93 Difference]: Finished difference Result 170 states and 195 transitions. [2022-07-23 06:44:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:07,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2022-07-23 06:44:07,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:07,490 INFO L225 Difference]: With dead ends: 170 [2022-07-23 06:44:07,490 INFO L226 Difference]: Without dead ends: 170 [2022-07-23 06:44:07,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:07,491 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 16 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:07,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 236 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:07,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-07-23 06:44:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 151. [2022-07-23 06:44:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.152) internal successors, (144), 125 states have internal predecessors, (144), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-23 06:44:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 172 transitions. [2022-07-23 06:44:07,493 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 172 transitions. Word has length 103 [2022-07-23 06:44:07,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:07,493 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 172 transitions. [2022-07-23 06:44:07,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 172 transitions. [2022-07-23 06:44:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 06:44:07,494 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:07,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:07,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 06:44:07,703 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,SelfDestructingSolverStorable72 [2022-07-23 06:44:07,703 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1586409075, now seen corresponding path program 1 times [2022-07-23 06:44:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:07,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345483733] [2022-07-23 06:44:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:07,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:44:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 06:44:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-23 06:44:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 06:44:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 06:44:07,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:07,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345483733] [2022-07-23 06:44:07,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345483733] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 06:44:07,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986777396] [2022-07-23 06:44:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:07,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 06:44:07,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 06:44:07,769 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) [2022-07-23 06:44:07,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 06:44:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:07,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 06:44:07,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 06:44:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 06:44:07,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 06:44:07,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986777396] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:07,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 06:44:07,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-07-23 06:44:07,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901434620] [2022-07-23 06:44:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:07,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:07,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:07,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:07,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:44:07,953 INFO L87 Difference]: Start difference. First operand 151 states and 172 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-23 06:44:08,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:08,011 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2022-07-23 06:44:08,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:44:08,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-07-23 06:44:08,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:08,012 INFO L225 Difference]: With dead ends: 151 [2022-07-23 06:44:08,012 INFO L226 Difference]: Without dead ends: 151 [2022-07-23 06:44:08,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:08,012 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 144 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:08,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 214 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:08,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-07-23 06:44:08,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-07-23 06:44:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.136) internal successors, (142), 125 states have internal predecessors, (142), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-23 06:44:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 170 transitions. [2022-07-23 06:44:08,014 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 170 transitions. Word has length 103 [2022-07-23 06:44:08,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:08,014 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 170 transitions. [2022-07-23 06:44:08,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-23 06:44:08,014 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 170 transitions. [2022-07-23 06:44:08,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-23 06:44:08,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:08,015 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:08,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-23 06:44:08,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 06:44:08,229 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:08,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:08,229 INFO L85 PathProgramCache]: Analyzing trace with hash 631465488, now seen corresponding path program 1 times [2022-07-23 06:44:08,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:08,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336149481] [2022-07-23 06:44:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:08,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:44:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:44:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 06:44:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 06:44:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 06:44:08,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:08,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336149481] [2022-07-23 06:44:08,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336149481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:08,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:08,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 06:44:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948622207] [2022-07-23 06:44:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:08,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 06:44:08,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:08,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 06:44:08,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:08,320 INFO L87 Difference]: Start difference. First operand 151 states and 170 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:08,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:08,577 INFO L93 Difference]: Finished difference Result 259 states and 285 transitions. [2022-07-23 06:44:08,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 06:44:08,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104 [2022-07-23 06:44:08,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:08,578 INFO L225 Difference]: With dead ends: 259 [2022-07-23 06:44:08,578 INFO L226 Difference]: Without dead ends: 151 [2022-07-23 06:44:08,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-07-23 06:44:08,579 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 205 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:08,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 644 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-07-23 06:44:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-07-23 06:44:08,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.128) internal successors, (141), 125 states have internal predecessors, (141), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-23 06:44:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 169 transitions. [2022-07-23 06:44:08,580 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 169 transitions. Word has length 104 [2022-07-23 06:44:08,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:08,580 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 169 transitions. [2022-07-23 06:44:08,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:08,580 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 169 transitions. [2022-07-23 06:44:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-23 06:44:08,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:08,581 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:08,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-23 06:44:08,581 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:08,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:08,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1542761419, now seen corresponding path program 1 times [2022-07-23 06:44:08,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:08,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205008860] [2022-07-23 06:44:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:08,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:44:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:44:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 06:44:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 06:44:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 06:44:08,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:08,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205008860] [2022-07-23 06:44:08,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205008860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:08,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:08,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:08,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234644531] [2022-07-23 06:44:08,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:08,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:08,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:08,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:08,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:08,643 INFO L87 Difference]: Start difference. First operand 151 states and 169 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:08,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:08,757 INFO L93 Difference]: Finished difference Result 170 states and 188 transitions. [2022-07-23 06:44:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:08,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104 [2022-07-23 06:44:08,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:08,758 INFO L225 Difference]: With dead ends: 170 [2022-07-23 06:44:08,758 INFO L226 Difference]: Without dead ends: 170 [2022-07-23 06:44:08,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:08,759 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 92 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:08,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 487 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-07-23 06:44:08,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 151. [2022-07-23 06:44:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.096) internal successors, (137), 125 states have internal predecessors, (137), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-23 06:44:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2022-07-23 06:44:08,760 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 104 [2022-07-23 06:44:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:08,761 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2022-07-23 06:44:08,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2022-07-23 06:44:08,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-23 06:44:08,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:08,761 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:08,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-23 06:44:08,761 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1766005042, now seen corresponding path program 1 times [2022-07-23 06:44:08,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:08,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001912665] [2022-07-23 06:44:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:08,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:44:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:44:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:44:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 06:44:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 06:44:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 06:44:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 06:44:08,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:08,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001912665] [2022-07-23 06:44:08,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001912665] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:08,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:08,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:44:08,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809458540] [2022-07-23 06:44:08,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:08,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:44:08,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:44:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:08,874 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:09,154 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2022-07-23 06:44:09,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:44:09,154 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104 [2022-07-23 06:44:09,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:09,154 INFO L225 Difference]: With dead ends: 148 [2022-07-23 06:44:09,154 INFO L226 Difference]: Without dead ends: 0 [2022-07-23 06:44:09,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2022-07-23 06:44:09,155 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 189 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:09,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 633 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:09,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-23 06:44:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-23 06:44:09,155 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) [2022-07-23 06:44:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-23 06:44:09,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2022-07-23 06:44:09,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:09,156 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 06:44:09,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-23 06:44:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-23 06:44:09,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-23 06:44:09,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-23 06:44:09,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-23 06:44:09,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-23 06:44:09,160 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:09,161 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 06:44:09,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 06:44:09 BoogieIcfgContainer [2022-07-23 06:44:09,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 06:44:09,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 06:44:09,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 06:44:09,164 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 06:44:09,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:43:36" (3/4) ... [2022-07-23 06:44:09,167 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-23 06:44:09,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure SendSrbSynchronous [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeSetEvent [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioSignalCompletion [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure AG_SetStatusAndReturn [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stubMoreProcessingRequired [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioSendToNextDriver [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioIsPlayActive [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeWaitForSingleObject [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioForwardIrpSynchronous [2022-07-23 06:44:09,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure HPCdrCompletion [2022-07-23 06:44:09,192 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2022-07-23 06:44:09,194 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-07-23 06:44:09,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-23 06:44:09,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-23 06:44:09,300 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 06:44:09,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 06:44:09,300 INFO L158 Benchmark]: Toolchain (without parser) took 34294.67ms. Allocated memory was 98.6MB in the beginning and 293.6MB in the end (delta: 195.0MB). Free memory was 65.1MB in the beginning and 136.6MB in the end (delta: -71.5MB). Peak memory consumption was 123.5MB. Max. memory is 16.1GB. [2022-07-23 06:44:09,300 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 06:44:09,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.72ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.0MB in the beginning and 85.1MB in the end (delta: -20.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-23 06:44:09,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.43ms. Allocated memory is still 127.9MB. Free memory was 85.1MB in the beginning and 78.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 06:44:09,304 INFO L158 Benchmark]: Boogie Preprocessor took 44.98ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 73.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 06:44:09,304 INFO L158 Benchmark]: RCFGBuilder took 1035.10ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 84.6MB in the end (delta: -11.4MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2022-07-23 06:44:09,304 INFO L158 Benchmark]: TraceAbstraction took 32593.36ms. Allocated memory was 127.9MB in the beginning and 293.6MB in the end (delta: 165.7MB). Free memory was 83.9MB in the beginning and 161.8MB in the end (delta: -77.9MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2022-07-23 06:44:09,307 INFO L158 Benchmark]: Witness Printer took 135.59ms. Allocated memory is still 293.6MB. Free memory was 160.7MB in the beginning and 136.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-23 06:44:09,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.72ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.0MB in the beginning and 85.1MB in the end (delta: -20.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.43ms. Allocated memory is still 127.9MB. Free memory was 85.1MB in the beginning and 78.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.98ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 73.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1035.10ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 84.6MB in the end (delta: -11.4MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * TraceAbstraction took 32593.36ms. Allocated memory was 127.9MB in the beginning and 293.6MB in the end (delta: 165.7MB). Free memory was 83.9MB in the beginning and 161.8MB in the end (delta: -77.9MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * Witness Printer took 135.59ms. Allocated memory is still 293.6MB. Free memory was 160.7MB in the beginning and 136.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * 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: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1717]: 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 14 procedures, 469 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 32.6s, OverallIterations: 77, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22692 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22225 mSDsluCounter, 166275 SdHoareTripleChecker+Invalid, 17.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129151 mSDsCounter, 5927 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45026 IncrementalHoareTripleChecker+Invalid, 50953 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5927 mSolverCounterUnsat, 37124 mSDtfsCounter, 45026 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1473 GetRequests, 685 SyntacticMatches, 4 SemanticMatches, 784 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred in iteration=10, InterpolantAutomatonStates: 685, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 77 MinimizatonAttempts, 3219 StatesRemovedByMinimization, 69 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 4160 NumberOfCodeBlocks, 4160 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 4080 ConstructedInterpolants, 0 QuantifiedInterpolants, 10477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1664 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 80 InterpolantComputations, 77 PerfectInterpolantSequences, 71/85 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! [2022-07-23 06:44:09,338 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE